- ep_plastic_toleranceThe Newton-Raphson process is only deemed converged if the plastic strain increment constraints have L2 norm less than this.
C++ Type:double
Controllable:No
Description:The Newton-Raphson process is only deemed converged if the plastic strain increment constraints have L2 norm less than this.
ComputeMultiPlasticityStress
buildconstruction:Undocumented Class
The ComputeMultiPlasticityStress has not been documented. The content listed below should be used as a starting point for documenting the class, which includes the typical automatic documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.
Material for multi-surface finite-strain plasticity
Overview
Example Input File Syntax
Input Parameters
- base_nameOptional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
C++ Type:std::string
Controllable:No
Description:Optional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
- computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
Default:True
C++ Type:bool
Controllable:No
Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
- constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
Default:NONE
C++ Type:MooseEnum
Options:NONE, ELEMENT, SUBDOMAIN
Controllable:No
Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
- deactivation_schemeoptimizedScheme by which constraints are deactivated. (NOTE: This is irrelevant if there is only one yield surface.) safe: return to the yield surface and then deactivate constraints with negative plasticity multipliers. optimized: deactivate a constraint as soon as its plasticity multiplier becomes negative. dumb: iteratively try all combinations of active constraints until the solution is found. You may specify fall-back options. Eg optimized_to_safe: first use 'optimized', and if that fails, try the return with 'safe'.
Default:optimized
C++ Type:MooseEnum
Options:optimized, safe, dumb, optimized_to_safe, safe_to_dumb, optimized_to_safe_to_dumb, optimized_to_dumb
Controllable:No
Description:Scheme by which constraints are deactivated. (NOTE: This is irrelevant if there is only one yield surface.) safe: return to the yield surface and then deactivate constraints with negative plasticity multipliers. optimized: deactivate a constraint as soon as its plasticity multiplier becomes negative. dumb: iteratively try all combinations of active constraints until the solution is found. You may specify fall-back options. Eg optimized_to_safe: first use 'optimized', and if that fails, try the return with 'safe'.
- debug_fspbnoneDebug types for use by developers when creating new plasticity models, not for general use. 2 = debug Jacobian entries, 3 = check the entire Jacobian, and check Ax=b
Default:none
C++ Type:MooseEnum
Options:none, crash, jacobian, jacobian_and_linear_system
Controllable:No
Description:Debug types for use by developers when creating new plasticity models, not for general use. 2 = debug Jacobian entries, 3 = check the entire Jacobian, and check Ax=b
- debug_intnl_changeDebug finite differencing parameters for the internal parameters
C++ Type:std::vector<double>
Controllable:No
Description:Debug finite differencing parameters for the internal parameters
- debug_jac_at_intnlDebug Jacobian entries at these internal parameters
C++ Type:std::vector<double>
Controllable:No
Description:Debug Jacobian entries at these internal parameters
- debug_jac_at_pmDebug Jacobian entries at these plastic multipliers
C++ Type:std::vector<double>
Controllable:No
Description:Debug Jacobian entries at these plastic multipliers
- debug_jac_at_stress(xx,xy,xz)=( 0, 0, 0) (yx,yy,yz)=( 0, 0, 0) (zx,zy,zz)=( 0, 0, 0) Debug Jacobian entries at this stress. For use by developers
Default:(xx,xy,xz)=( 0, 0, 0) (yx,yy,yz)=( 0, 0, 0) (zx,zy,zz)=( 0, 0, 0)
C++ Type:libMesh::TensorValue<double>
Controllable:No
Description:Debug Jacobian entries at this stress. For use by developers
- debug_pm_changeDebug finite differencing parameters for the plastic multipliers
C++ Type:std::vector<double>
Controllable:No
Description:Debug finite differencing parameters for the plastic multipliers
- debug_stress_change1Debug finite differencing parameter for the stress
Default:1
C++ Type:double
Controllable:No
Description:Debug finite differencing parameter for the stress
- declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
- ignore_failuresFalseThe return-map algorithm will return with the best admissible stresses and internal parameters that it can, even if they don't fully correspond to the applied strain increment. To speed computations, this flag can be set to true, the max_NR_iterations set small, and the min_stepsize large.
Default:False
C++ Type:bool
Controllable:No
Description:The return-map algorithm will return with the best admissible stresses and internal parameters that it can, even if they don't fully correspond to the applied strain increment. To speed computations, this flag can be set to true, the max_NR_iterations set small, and the min_stepsize large.
- linear_dependent0.0001Flow directions are considered linearly dependent if the smallest singular value is less than linear_dependent times the largest singular value
Default:0.0001
C++ Type:double
Controllable:No
Description:Flow directions are considered linearly dependent if the smallest singular value is less than linear_dependent times the largest singular value
- max_NR_iterations20Maximum number of Newton-Raphson iterations allowed
Default:20
C++ Type:unsigned int
Controllable:No
Description:Maximum number of Newton-Raphson iterations allowed
- max_stepsize_for_dumb0.01If your deactivation_scheme is 'something_to_dumb', then 'dumb' will only be used if the stepsize falls below this value. This parameter is useful because the 'dumb' scheme is computationally expensive
Default:0.01
C++ Type:double
Controllable:No
Description:If your deactivation_scheme is 'something_to_dumb', then 'dumb' will only be used if the stepsize falls below this value. This parameter is useful because the 'dumb' scheme is computationally expensive
- min_stepsize0.01If ordinary Newton-Raphson + line-search fails, then the applied strain increment is subdivided, and the return-map is tried again. This parameter is the minimum fraction of applied strain increment that may be applied before the algorithm gives up entirely
Default:0.01
C++ Type:double
Controllable:No
Description:If ordinary Newton-Raphson + line-search fails, then the applied strain increment is subdivided, and the return-map is tried again. This parameter is the minimum fraction of applied strain increment that may be applied before the algorithm gives up entirely
- perform_finite_strain_rotationsTrueTensors are correctly rotated in finite-strain simulations. For optimal performance you can set this to 'false' if you are only ever using small strains
Default:True
C++ Type:bool
Controllable:No
Description:Tensors are correctly rotated in finite-strain simulations. For optimal performance you can set this to 'false' if you are only ever using small strains
- plastic_modelsList of names of user objects that define the plastic models that could be active for this material. If no plastic_models are provided, only elasticity will be used.
C++ Type:std::vector<UserObjectName>
Controllable:No
Description:List of names of user objects that define the plastic models that could be active for this material. If no plastic_models are provided, only elasticity will be used.
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- specialICnoneFor certain combinations of plastic models, the set of active constraints can be initialized optimally. 'none': no special initialization is performed. For all other choices, the plastic_models must be chosen to have the following types. 'rock': 'TensileMulti MohrCoulombMulti'. 'joint': 'WeakPlaneTensile WeakPlaneShear'.
Default:none
C++ Type:MooseEnum
Options:none, rock, joint
Controllable:No
Description:For certain combinations of plastic models, the set of active constraints can be initialized optimally. 'none': no special initialization is performed. For all other choices, the plastic_models must be chosen to have the following types. 'rock': 'TensileMulti MohrCoulombMulti'. 'joint': 'WeakPlaneTensile WeakPlaneShear'.
- tangent_operatornonlinearType of tangent operator to return. 'elastic': return the elasticity tensor. 'linear': return the consistent tangent operator that is correct for plasticity with yield functions linear in stress. 'nonlinear': return the full, general consistent tangent operator. The calculations assume the hardening potentials are independent of stress and hardening parameters.
Default:nonlinear
C++ Type:MooseEnum
Options:elastic, linear, nonlinear
Controllable:No
Description:Type of tangent operator to return. 'elastic': return the elasticity tensor. 'linear': return the consistent tangent operator that is correct for plasticity with yield functions linear in stress. 'nonlinear': return the full, general consistent tangent operator. The calculations assume the hardening potentials are independent of stress and hardening parameters.
- transverse_directionIf this parameter is provided, before the return-map algorithm is called a rotation is performed so that the 'z' axis in the new frame lies along the transverse_direction in the original frame. After returning, the inverse rotation is performed. The transverse_direction will itself rotate with large strains. This is so that transversely-isotropic plasticity models may be easily defined in the frame where the isotropy holds in the x-y plane.
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:If this parameter is provided, before the return-map algorithm is called a rotation is performed so that the 'z' axis in the new frame lies along the transverse_direction in the original frame. After returning, the inverse rotation is performed. The transverse_direction will itself rotate with large strains. This is so that transversely-isotropic plasticity models may be easily defined in the frame where the isotropy holds in the x-y plane.
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
Advanced Parameters
- output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)
C++ Type:std::vector<std::string>
Controllable:No
Description:List of material properties, from this material, to output (outputs must also be defined to an output type)
- outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object
Default:none
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object
Outputs Parameters
Input Files
- (modules/solid_mechanics/test/tests/jacobian/cto13.i)
- (modules/solid_mechanics/test/tests/multi/three_surface10.i)
- (modules/solid_mechanics/test/tests/jacobian/cto09.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/random03.i)
- (modules/solid_mechanics/test/tests/initial_stress/mc_tensile.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_tip.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_native.i)
- (modules/solid_mechanics/test/tests/orthotropic_plasticity/powerRuleHardening.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform2_small_strain.i)
- (modules/solid_mechanics/test/tests/multi/three_surface08.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial3.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform4.i)
- (modules/solid_mechanics/test/tests/multi/three_surface03.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/large_deform1.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden2.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform5.i)
- (modules/solid_mechanics/test/tests/mean_cap/small_deform1.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden1.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform1N.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_lode_zero.i)
- (modules/solid_mechanics/test/tests/mean_cap/small_deform2.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/except1.i)
- (modules/solid_mechanics/test/tests/mean_cap/random.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/random02.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard1.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_outer_tip.i)
- (modules/solid_mechanics/test/tests/multi/eight_surface14.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform7.i)
- (modules/solid_mechanics/test/tests/jacobian/cto19.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_native.i)
- (modules/solid_mechanics/test/tests/multi/three_surface22.i)
- (modules/solid_mechanics/test/tests/lagrangian/cartesian/total/cross_material/convergence/plastic_j2.i)
- (modules/solid_mechanics/test/tests/multi/rock1.i)
- (modules/solid_mechanics/test/tests/jacobian/cto07.i)
- (modules/solid_mechanics/test/tests/orthotropic_plasticity/orthotropic.i)
- (modules/solid_mechanics/test/tests/tensile/planar3.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard_cubic.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform3.i)
- (modules/solid_mechanics/test/tests/j2_plasticity/hard1.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_edge.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/except4.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_lode_zero.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard5.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard2.i)
- (modules/solid_mechanics/tutorials/basics/part_2.4.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/except2.i)
- (modules/solid_mechanics/test/tests/jacobian/cto02.i)
- (modules/solid_mechanics/test/tests/multi/three_surface09.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard_cubic.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform4.i)
- (modules/solid_mechanics/test/tests/multi/paper5.i)
- (modules/solid_mechanics/test/tests/multi/three_surface11.i)
- (modules/solid_mechanics/test/tests/jacobian/cto20.i)
- (modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod_small_strain.i)
- (modules/solid_mechanics/test/tests/notched_plastic_block/biaxial_abbo.i)
- (modules/solid_mechanics/test/tests/tensile/planar1.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial1_small_strain.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform1_uo.i)
- (modules/solid_mechanics/test/tests/jacobian/cto06.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard4.i)
- (modules/solid_mechanics/test/tests/lagrangian/cartesian/updated/cross_material/convergence/plastic_j2.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform6.i)
- (modules/solid_mechanics/test/tests/tensile/random_planar.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar3.i)
- (modules/solid_mechanics/test/tests/notched_plastic_block/cmc_planar.i)
- (modules/combined/test/tests/j2_plasticity_vs_LSH/necking/j2_hard1_neckingRZ.i)
- (modules/solid_mechanics/test/tests/j2_plasticity/small_deform1.i)
- (modules/solid_mechanics/test/tests/multi/three_surface12.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/except2.i)
- (modules/solid_mechanics/test/tests/multi/paper1.i)
- (modules/solid_mechanics/test/tests/jacobian/cto16.i)
- (modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod_optimised.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial1.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/large_deform4.i)
- (modules/solid_mechanics/test/tests/j2_plasticity/small_deform3.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform7.i)
- (modules/solid_mechanics/test/tests/lagrangian/cartesian/total/cross_material/correctness/plastic_j2.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform1.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard2.i)
- (modules/solid_mechanics/test/tests/multi/two_surface02.i)
- (modules/solid_mechanics/test/tests/multi/three_surface01.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial2_planar.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform5.i)
- (modules/solid_mechanics/test/tests/finite_strain_elastic/finite_strain_fake_plastic.i)
- (modules/solid_mechanics/test/tests/jacobian/cto22.i)
- (modules/solid_mechanics/tutorials/basics/part_3_1.i)
- (modules/solid_mechanics/test/tests/multi/three_surface05.i)
- (modules/solid_mechanics/test/tests/tensile/planar4.i)
- (modules/solid_mechanics/test/tests/multi/three_surface14.i)
- (modules/solid_mechanics/test/tests/static_deformations/cosserat_glide_fake_plastic.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard1.i)
- (modules/solid_mechanics/test/tests/multi/special_rock1.i)
- (modules/solid_mechanics/test/tests/jacobian/cto03.i)
- (modules/solid_mechanics/test/tests/tensile/planar6.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/large_deform_harden3.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform3.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform4.i)
- (modules/solid_mechanics/test/tests/multi/three_surface06.i)
- (modules/solid_mechanics/test/tests/multi/special_joint1.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial3_planar.i)
- (modules/solid_mechanics/test/tests/multi/three_surface02.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden4.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/random.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform6.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_outer_tip.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/large_deform3.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/except1.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform1.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_tip.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform5.i)
- (modules/solid_mechanics/test/tests/tensile/planar5.i)
- (modules/solid_mechanics/test/tests/drucker_prager/random_hyperbolic.i)
- (modules/solid_mechanics/test/tests/lagrangian/cartesian/updated/cross_material/correctness/plastic_j2.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard3.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/large_deform2.i)
- (modules/solid_mechanics/test/tests/tensile/planar8.i)
- (modules/solid_mechanics/test/tests/notched_plastic_block/biaxial_planar.i)
- (modules/solid_mechanics/test/tests/jacobian/cto23.i)
- (modules/combined/test/tests/j2_plasticity_vs_LSH/necking/j2_hard1_necking.i)
- (modules/solid_mechanics/test/tests/multi/two_surface05.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform2.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard1.i)
- (modules/solid_mechanics/test/tests/jacobian/cto10.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform2.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform2.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/random01.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/random_planar.i)
- (modules/solid_mechanics/test/tests/multi/three_surface13.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/many_deforms_cap.i)
- (modules/solid_mechanics/test/tests/multi/two_surface03.i)
- (modules/solid_mechanics/test/tests/jacobian/cto05.i)
- (modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod.i)
- (modules/solid_mechanics/test/tests/j2_plasticity/small_deform2.i)
- (modules/solid_mechanics/test/tests/multi/three_surface07.i)
- (modules/solid_mechanics/test/tests/isotropicSD_plasticity/powerRuleHardening.i)
- (modules/solid_mechanics/test/tests/multi/two_surface04.i)
- (modules/solid_mechanics/test/tests/jacobian/cto15.i)
- (modules/solid_mechanics/test/tests/multi/three_surface16.i)
- (modules/solid_mechanics/test/tests/multi/four_surface24.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform_hard3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/except3.i)
- (modules/solid_mechanics/test/tests/multi/six_surface14.i)
- (modules/solid_mechanics/test/tests/jacobian/cto12.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform6.i)
- (modules/solid_mechanics/test/tests/multi/three_surface04.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/except1.i)
- (modules/solid_mechanics/test/tests/multi/three_surface20.i)
- (modules/solid_mechanics/test/tests/jacobian/cto18.i)
- (modules/solid_mechanics/test/tests/multi/two_surface01.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/large_deform1.i)
- (modules/solid_mechanics/test/tests/jacobian/cto11.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard2.i)
- (modules/solid_mechanics/test/tests/jacobian/cto14.i)
- (modules/solid_mechanics/test/tests/weak_plane_shear/small_deform2.i)
- (modules/solid_mechanics/test/tests/multi/three_surface15.i)
- (modules/solid_mechanics/test/tests/jacobian/cto04.i)
- (modules/solid_mechanics/test/tests/multi/four_surface14.i)
- (modules/solid_mechanics/test/tests/tensile/random_smoothed.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform1.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard3.i)
- (modules/solid_mechanics/test/tests/jacobian/cto08.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/small_deform2.i)
- (modules/solid_mechanics/test/tests/jacobian/cto01.i)
- (modules/solid_mechanics/tutorials/basics/part_2.3.i)
- (modules/solid_mechanics/test/tests/isotropicSD_plasticity/isotropicSD.i)
- (modules/solid_mechanics/test/tests/multi/three_surface00.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial2.i)
- (modules/solid_mechanics/test/tests/multi/three_surface21.i)
- (modules/solid_mechanics/test/tests/tensile/planar7.i)
- (modules/solid_mechanics/test/tests/tensile/planar2.i)
- (modules/solid_mechanics/test/tests/mean_cap_TC/random04.i)
- (modules/solid_mechanics/test/tests/weak_plane_tensile/large_deform2.i)
- (modules/solid_mechanics/test/tests/jacobian/cto17.i)
- (modules/solid_mechanics/test/tests/jacobian/cto21.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/small_deform4.i)
- (modules/solid_mechanics/test/tests/tensile/small_deform1.i)
- (modules/solid_mechanics/test/tests/multi/paper3.i)
- (modules/solid_mechanics/test/tests/mohr_coulomb/planar1.i)
- (modules/solid_mechanics/test/tests/j2_plasticity/hard2.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_edge.i)
(modules/solid_mechanics/test/tests/jacobian/cto13.i)
# checking jacobian for nonlinear plasticity (single surface, smoothed MohrCoulomb)
# note: must have min_stepsize=1 otherwise the nonlinearities compound and make the jacobian more inaccurate
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 25
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = mc
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/multi/three_surface10.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.5E-6m in y direction and 0.0E-6 in z direction.
# trial stress_yy = 1.5 and stress_zz = 0.0
#
# Then SimpleTester1 should activate and the algorithm will return to
# stress_yy=1
# internal1 should be 0.5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface10
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto09.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface14.i
# Plasticity models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 0.15 and stress_zz = 1.5
#
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# Then all three will be active, but there is linear-dependence.
# SimpleTester1 will turn off, since it is closest,
# and the algorithm will return to stress_zz=1, stress_yy=2, but
# then SimpleTester1 will be positive, so it will be turned back
# on, and then SimpleTester0 or SimpleTester2 will be turned off
# (a random choice will be made).
# If SimpleTester2 is turned
# off then algorithm returns to stress_zz=1=stress_yy, but then
# SimpleTester2 violates Kuhn-Tucker (f<0 and pm>0), so the algorithm
# will restart, and return to stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
# If SimpleTester0 is turned off then the algorithm will return to
# stress_zz=2, stress_yy=1, where f0>0. Once again, a random choice
# of turning off SimpleTester1 or SimpleTester2 can be made. Hence,
# oscillations can occur. If too many oscillations occur then the algorithm
# will fail
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 2.1 0 0 0 3.0'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/random03.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_yield_fcn]
type = ElementExtremeValue
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'max_yield_fcn'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0.1
internal_limit = 0.1
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -1.5
value_residual = 0
internal_limit = 0.1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 2
ep_plastic_tolerance = 1E-8
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random03
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/initial_stress/mc_tensile.i)
# In this example, an initial stress is applied that
# is inadmissible, and the return-map algorithm must be
# used to return to the yield surface before any other
# computations can be carried out.
# In this case, the return-map algorithm must subdivide
# the initial stress, otherwise it does not converge.
# This test is testing that subdivision process.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
variable = disp_x
boundary = 'back'
value = 0.0
[../]
[./bottomy]
type = DirichletBC
variable = disp_y
boundary = 'back'
value = 0.0
[../]
[./bottomz]
type = DirichletBC
variable = disp_z
boundary = 'back'
value = 0.0
[../]
[./topx]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front'
function = '2*t-1'
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front'
function = 't-1'
[../]
[./topz]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front'
function = 't-1'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
outputs = console
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 1E5
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4.0
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[./str]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./pt]
type = SolidMechanicsPlasticTensile
tensile_strength = str
yield_function_tolerance = 1E-3
tensile_tip_smoother = 0.05
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '8E6 4E6 -18E6 4E6 -40E6 -2E6 -18E6 -2E6 -34E6'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-9
plastic_models = 'pt mc'
deactivation_scheme = safe
max_NR_iterations = 100
min_stepsize = 0.1
[../]
[]
[Executioner]
end_time = 2
dt = 1
type = Transient
[]
[Outputs]
file_base = mc_tensile
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_tip.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = inner_tip
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_inner_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform2_native.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = native
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_native
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/orthotropic_plasticity/powerRuleHardening.i)
# UserObject Orthotropic test, with power rule hardening with rate 1e1.
# Linear strain is applied in the x direction.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -.5
xmax = .5
ymin = -.5
ymax = .5
zmin = -.5
zmax = .5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
strain = FINITE
add_variables = true
generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz'
[../]
[]
[BCs]
[./xdisp]
type = FunctionDirichletBC
variable = disp_x
boundary = 'right'
function = '0.005*t'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
#boundary = 'bottom top'
boundary = 'bottom'
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[./zfix]
type = DirichletBC
variable = disp_z
#boundary = 'front back'
boundary = 'back'
value = 0
[../]
[]
[AuxVariables]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[./sdev]
order = CONSTANT
family = MONOMIAL
[../]
[./sdet]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./plastic_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xx
index_i = 0
index_j = 0
[../]
[./plastic_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xy
index_i = 0
index_j = 1
[../]
[./plastic_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xz
index_i = 0
index_j = 2
[../]
[./plastic_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yy
index_i = 1
index_j = 1
[../]
[./plastic_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yz
index_i = 1
index_j = 2
[../]
[./plastic_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[./sdev]
type = RankTwoScalarAux
variable = sdev
rank_two_tensor = stress
scalar_type = VonMisesStress
[../]
[]
[Postprocessors]
[./sdev]
type = PointValue
point = '0 0 0'
variable = sdev
[../]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./p_xx]
type = PointValue
point = '0 0 0'
variable = plastic_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./p_xy]
type = PointValue
point = '0 0 0'
variable = plastic_xy
[../]
[./p_xz]
type = PointValue
point = '0 0 0'
variable = plastic_xz
[../]
[./p_yz]
type = PointValue
point = '0 0 0'
variable = plastic_yz
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./p_yy]
type = PointValue
point = '0 0 0'
variable = plastic_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./p_zz]
type = PointValue
point = '0 0 0'
variable = plastic_zz
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 300
epsilon0 = 1
exponent = 1e1
[../]
[./Orthotropic]
type = SolidMechanicsPlasticOrthotropic
b = -0.1
c1 = '1 1 1 1 1 1'
c2 = '1 1 1 1 1 1'
associative = true
yield_strength = str
yield_function_tolerance = 1e-5
internal_constraint_tolerance = 1e-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '121e3 80e3'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1e-9
plastic_models = Orthotropic
debug_fspb = crash
tangent_operator = elastic
[../]
[]
[Executioner]
type = Transient
num_steps = 3
dt = .25
nl_rel_tol = 1e-6
nl_max_its = 10
l_tol = 1e-4
l_max_its = 50
solve_type = PJFNK
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Outputs]
perf_graph = false
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform3.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.25E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 50
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.8726646 # 50deg
rate = 3000.0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 20
yield_function_tolerance = 1E-8
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 30
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform2_small_strain.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 20
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_small_strain
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface08.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.0E-6m in y direction and 0.5E-6 in z direction.
# trial stress_yy = 2.0 and stress_zz = 0.5
#
# Then SimpleTester1 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=1.0, stress_zz=0.5
# internal1 should be 1.0, and internal2 should be 0
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface08
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial3.i)
[Mesh]
type = FileMesh
file = quarter_hole.e
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'zmin'
value = '0'
[../]
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'xmin'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'ymin'
value = '0'
[../]
[./ymax_disp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'ymax'
function = '-1E-4*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0.005 0.02 0.002'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 40
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 40
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0.01E6
mc_edge_smoother = 29
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
C_ijkl = '0 5E9' # young = 10Gpa, poisson = 0.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 1
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-11
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[../]
[]
# Preconditioning and Executioner options kindly provided by Andrea
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 1.05
dt = 0.1
solve_type = NEWTON
type = Transient
nl_abs_tol = 1E-10
nl_rel_tol = 1E-12
l_tol = 1E-2
l_max_its = 50
nl_max_its = 400
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = uni_axial3
exodus = true
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform4.i)
# apply nonuniform compression in x, y and z directions such that
# trial_stress(0, 0) = 2
# trial_stress(1, 1) = -8
# trial_stress(2, 2) = -10
# With compressive_strength = -1, the algorithm should return to trace(stress) = -1, or
# stress(0, 0) = 7
# stress(1, 1) = -3
# stress(2, 2) = -5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-4E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform4
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface03.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 0.5E-6m in y direction and 2.0E-6 in z direction.
# trial stress_yy = 0.5 and stress_zz = 2.0
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1
# internal0 should be 1.0, and others zero
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface03
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/large_deform1.i)
# rotate the mesh by 90degrees
# then pull in the z direction - should be no plasticity
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
decomposition_method = EigenSolution
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
# rotate:
# ynew = c*y + s*z. znew = -s*y + c*z
[bottomx]
type = FunctionDirichletBC
variable = disp_x
boundary = back
function = '0'
[]
[bottomy]
type = FunctionDirichletBC
variable = disp_y
boundary = back
function = '0*y+1*z-y'
[]
[bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = back
function = '-1*y+0*z-z+if(t>0,0.5-y,0)' # note that this uses original nodal values of (x,y,z)
[]
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '0*y+1*z-y'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '-1*y+0*z-z+if(t>0,0.5-y,0)' # note that this uses original nodal values of (x,y,z)
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.1111077
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 0.5
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-6
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
debug_fspb = crash
[]
[]
[Executioner]
start_time = -1
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
exodus = true
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden2.i)
# apply a pure tension, then some shear with compression
# the BCs are designed to map out the yield function, showing
# the affect of the hardening
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = 'if(t<1E-6,0,3*t)'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = 'if(t<1E-6,0,5*(t-0.01E-6))'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 'if(t<1E-6,t,2E-6-t)'
[]
[]
[AuxVariables]
[wps_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wps_internal_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wps_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[int]
type = PointValue
point = '0 0 0'
variable = wps_internal
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningGaussian
value_0 = 1E3
value_residual = 700
rate = 2E16
[]
[tanphi]
type = SolidMechanicsHardeningGaussian
value_0 = 1
value_residual = 0.577350269
rate = 2E16
[]
[tanpsi]
type = SolidMechanicsHardeningGaussian
value_0 = 0.0874886635
value_residual = 0.01745506
rate = 2E16
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 500
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-3
max_NR_iterations = 100
min_stepsize = 1
debug_fspb = crash
[]
[]
[Executioner]
end_time = 2E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform5.i)
# apply nonuniform stretch in x, y and z directions using
# Lame lambda = 0.7E7, Lame mu = 1.0E7,
# trial_stress(0, 0) = 2.9
# trial_stress(1, 1) = 10.9
# trial_stress(2, 2) = 14.9
# With tensile_strength = 2, decaying to zero at internal parameter = 4E-7
# via a Cubic, the algorithm should return to:
# internal parameter = 2.26829E-7
# trace(stress) = 0.799989 = tensile_strength
# stress(0, 0) = -6.4
# stress(1, 1) = 1.6
# stress(2, 2) = 5.6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 2
value_residual = 0
internal_limit = 4E-7
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -1
value_residual = 0
internal_limit = 1E-8
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-11
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform5
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap/small_deform1.i)
# apply uniform stretch in x, y and z directions.
# With a = 1 and strength = 2, the algorithm should return to sigma_m = 2
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./strength]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./cap]
type = SolidMechanicsPlasticMeanCap
a = 1
strength = strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden1.i)
# apply repeated stretches to observe cohesion hardening
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = '0'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = '2*t'
[]
[]
[AuxVariables]
[wps_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wps_internal_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wps_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[int]
type = PointValue
point = '0 0 0'
variable = wps_internal
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningExponential
value_0 = 1E3
value_residual = 2E3
rate = 4E4
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 1.0
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.01745506
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 500
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform1N.i)
# checking for small deformation
# A single element is stretched by 1E-6m in x,y and z directions.
# stress_zz = Youngs Modulus*Strain = 2E6*1E-6 = 2 Pa
# wpt_tensile_strength is set to 1Pa
# Then the final stress should return to the yeild surface and its value should be 1pa.
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = disp_x
boundary = front
value = 0E-6
[]
[topy]
type = DirichletBC
variable = disp_y
boundary = front
value = 0E-6
[]
[topz]
type = DirichletBC
variable = disp_z
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[iter]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[iter]
type = PointValue
point = '0 0 0'
variable = iter
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 1
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensileN
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
normal_vector = '0 0 1'
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
ep_plastic_tolerance = 1E-5
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform3_lode_zero.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = lode_zero
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_lode_zero
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap/small_deform2.i)
# apply compression in x, y and z directions such that strain = diag(-1E-6, -2E-6, 3E-6).
# With lame_lambda=0 and lame_mu=1E7, this gives
# trial_Stress = diag(-20, -40, -60), so trial_mean_Stress = -40.
# with a = -1 and strength = 30, the algorithm should return to
# stress = diag(-10, -30, -50)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-2E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-3E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./strength]
type = SolidMechanicsHardeningConstant
value = 30
[../]
[./cap]
type = SolidMechanicsPlasticMeanCap
a = -1
strength = strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/except1.i)
# checking for exception error messages
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 45
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 1
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = except1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap/random.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time. Two yield surfaces are used: one for compression and one for tension.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_yield_fcn]
type = ElementExtremeValue
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'max_yield_fcn'
[../]
[]
[UserObjects]
[./strength]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./cap1]
type = SolidMechanicsPlasticMeanCap
a = -1
strength = strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[./cap2]
type = SolidMechanicsPlasticMeanCap
a = 1
strength = strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 2
ep_plastic_tolerance = 1E-6
plastic_models = 'cap1 cap2'
debug_fspb = crash
deactivation_scheme = optimized
min_stepsize = 1
max_stepsize_for_dumb = 1
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/random02.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_yield_fcn]
type = ElementExtremeValue
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'max_yield_fcn'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1.5
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 2
ep_plastic_tolerance = 1E-6
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random02
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard1.i)
# apply uniform stretches in x, y and z directions.
# let mc_cohesion = 10, mc_cohesion_residual = 2, mc_cohesion_rate =
# With cohesion = C, friction_angle = 60deg, tip_smoother = 4, the
# algorithm should return to
# sigma_m = (C*Cos(60) - 4)/Sin(60)
# This allows checking of the relationship for C
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 2
rate = 1E4
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 1 2 1 10 3 2 3 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1E-4
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-8
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform_hard1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform2_outer_tip.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = outer_tip
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_outer_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/eight_surface14.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
# SimpleTester3 with a = 0 and b = 1 and strength = 1.1
# SimpleTester4 with a = 1 and b = 0 and strength = 1.1
# SimpleTester5 with a = 1 and b = 1 and strength = 3.1
# SimpleTester6 with a = 1 and b = 2 and strength = 3.1
# SimpleTester7 with a = 2 and b = 1 and strength = 3.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to three_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./f3]
order = CONSTANT
family = MONOMIAL
[../]
[./f4]
order = CONSTANT
family = MONOMIAL
[../]
[./f5]
order = CONSTANT
family = MONOMIAL
[../]
[./f6]
order = CONSTANT
family = MONOMIAL
[../]
[./f7]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[./int4]
order = CONSTANT
family = MONOMIAL
[../]
[./int5]
order = CONSTANT
family = MONOMIAL
[../]
[./int6]
order = CONSTANT
family = MONOMIAL
[../]
[./int7]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./f3]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 3
variable = f3
[../]
[./f4]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 4
variable = f4
[../]
[./f5]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 5
variable = f5
[../]
[./f6]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 6
variable = f6
[../]
[./f7]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 7
variable = f7
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 3
variable = int3
[../]
[./int4]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 4
variable = int4
[../]
[./int5]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 5
variable = int5
[../]
[./int6]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 6
variable = int6
[../]
[./int7]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 7
variable = int7
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = f3
[../]
[./f4]
type = PointValue
point = '0 0 0'
variable = f4
[../]
[./f5]
type = PointValue
point = '0 0 0'
variable = f5
[../]
[./f6]
type = PointValue
point = '0 0 0'
variable = f6
[../]
[./f7]
type = PointValue
point = '0 0 0'
variable = f7
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[./int3]
type = PointValue
point = '0 0 0'
variable = int3
[../]
[./int4]
type = PointValue
point = '0 0 0'
variable = int4
[../]
[./int5]
type = PointValue
point = '0 0 0'
variable = int5
[../]
[./int6]
type = PointValue
point = '0 0 0'
variable = int6
[../]
[./int7]
type = PointValue
point = '0 0 0'
variable = int7
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple4]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple5]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple6]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 2
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple7]
type = SolidMechanicsPlasticSimpleTester
a = 2
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3 simple4 simple5 simple6 simple7'
deactivation_scheme = optimized_to_safe
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = eight_surface14
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform7.i)
# checking for small deformation
# A single element is incrementally stretched in the in the z direction
# This causes the return direction to be along the hypersurface sigma_II = sigma_III,
# and the resulting stresses are checked to lie on the expected yield surface
#
# tensile_strength is set to 1Pa,
# cap smoothing is used with tip_smoother = 0.0, cap_start = 0.5, cap_rate = 2.0
# Lode angle = -30degrees
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.25E-6*z*t*t'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[./iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tip_scheme = cap
tensile_tip_smoother = 0.0
cap_start = -0.5
cap_rate = 2
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
max_NR_iterations = 1000
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 9
dt = 0.9
type = Transient
[]
[Outputs]
file_base = small_deform7
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto19.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform3_native.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.35E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = native
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_native
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface22.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.7E-6m in y direction and 1.1E-6 in z direction.
# trial stress_yy = 1.7 and stress_zz = 1.1
#
# Then all yield functions will activate
# However, there is linear dependence. SimpleTester0 will be rutned off.
# The algorithm will return to
# stress_yy=1.0 and stress_zz=0.5
# internal1=0.1, internal2=0.6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.7E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface22
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/lagrangian/cartesian/total/cross_material/convergence/plastic_j2.i)
# Simple 3D test
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
large_kinematics = false
[]
[Variables]
[disp_x]
[]
[disp_y]
[]
[disp_z]
[]
[]
[Mesh]
[msh]
type = GeneratedMeshGenerator
dim = 3
nx = 4
ny = 4
nz = 4
[]
[]
[ICs]
[disp_x]
type = RandomIC
variable = disp_x
min = -0.02
max = 0.02
[]
[disp_y]
type = RandomIC
variable = disp_y
min = -0.02
max = 0.02
[]
[disp_z]
type = RandomIC
variable = disp_z
min = -0.02
max = 0.02
[]
[]
[Kernels]
[sdx]
type = TotalLagrangianStressDivergence
variable = disp_x
component = 0
[]
[sdy]
type = TotalLagrangianStressDivergence
variable = disp_y
component = 1
[]
[sdz]
type = TotalLagrangianStressDivergence
variable = disp_z
component = 2
[]
[]
[Functions]
[pullx]
type = ParsedFunction
expression = '4000 * t'
[]
[pully]
type = ParsedFunction
expression = '-2000 * t'
[]
[pullz]
type = ParsedFunction
expression = '3000 * t'
[]
[]
[BCs]
[leftx]
type = DirichletBC
preset = true
boundary = left
variable = disp_x
value = 0.0
[]
[lefty]
type = DirichletBC
preset = true
boundary = left
variable = disp_y
value = 0.0
[]
[leftz]
type = DirichletBC
preset = true
boundary = left
variable = disp_z
value = 0.0
[]
[pull_x]
type = FunctionNeumannBC
boundary = right
variable = disp_x
function = pullx
[]
[pull_y]
type = FunctionNeumannBC
boundary = top
variable = disp_y
function = pully
[]
[pull_z]
type = FunctionNeumannBC
boundary = right
variable = disp_z
function = pullz
[]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 100.0
epsilon0 = 1.0
exponent = 1.0
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[elastic_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 100000.0
poissons_ratio = 0.3
[]
[compute_stress]
type = ComputeLagrangianWrappedStress
[]
[compute_stress_base]
type = ComputeMultiPlasticityStress
plastic_models = j2
ep_plastic_tolerance = 1E-9
[]
[compute_strain]
type = ComputeLagrangianStrain
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'newton'
line_search = none
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
l_max_its = 2
l_tol = 1e-14
nl_max_its = 15
nl_rel_tol = 1e-8
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
dtmin = 1.0
end_time = 1.0
[]
(modules/solid_mechanics/test/tests/multi/rock1.i)
# Plasticity models:
# Mohr-Coulomb with cohesion = 40MPa, friction angle = 35deg, dilation angle = 10deg
# Tensile with strength = 1MPa
# WeakPlaneShear with cohesion = 1MPa, friction angle = 25deg, dilation angle = 25deg
# WeakPlaneTensile with strength = 0.01MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 1234
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 1234
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./f3]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./f3]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 3
variable = f3
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 3
variable = int3
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./raw_f0]
type = ElementExtremeValue
variable = f0
outputs = console
[../]
[./raw_f1]
type = ElementExtremeValue
variable = f1
outputs = console
[../]
[./raw_f2]
type = ElementExtremeValue
variable = f2
outputs = console
[../]
[./raw_f3]
type = ElementExtremeValue
variable = f3
outputs = console
[../]
[./iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./f0]
type = FunctionValuePostprocessor
function = should_be_zero0_fcn
[../]
[./f1]
type = FunctionValuePostprocessor
function = should_be_zero1_fcn
[../]
[./f2]
type = FunctionValuePostprocessor
function = should_be_zero2_fcn
[../]
[./f3]
type = FunctionValuePostprocessor
function = should_be_zero3_fcn
[../]
[]
[Functions]
[./should_be_zero0_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f0'
[../]
[./should_be_zero1_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f1'
[../]
[./should_be_zero2_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f2'
[../]
[./should_be_zero3_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f3'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4E7
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 10
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4E6
yield_function_tolerance = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E6
[../]
[./tensile]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
tensile_tip_smoother = 1E5
yield_function_tolerance = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[./coh]
type = SolidMechanicsHardeningConstant
value = 1E6
[../]
[./tanphi]
type = SolidMechanicsHardeningConstant
value = 0.46630766
[../]
[./tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.46630766
[../]
[./wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 1E5
yield_function_tolerance = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[./str]
type = SolidMechanicsHardeningConstant
value = 0.01E6
[../]
[./wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1E9 1.3E9'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'mc tensile wps wpt'
deactivation_scheme = 'optimized_to_safe_to_dumb'
max_NR_iterations = 20
min_stepsize = 1E-4
max_stepsize_for_dumb = 1E-3
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1 1'
debug_jac_at_intnl = '1 1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = rock1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto07.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface11.i
# Plasticity models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 0 and stress_zz = 2
#
# Then SimpleTester0 should activate and the algorithm will return to
# stress_zz=1
# internal0 should be 1.0E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 0 0 0 0 2'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/orthotropic_plasticity/orthotropic.i)
# UserObject Orthotropic test, with constant hardening.
# Linear strain is applied in the x and y direction.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -.5
xmax = .5
ymin = -.5
ymax = .5
zmin = -.5
zmax = .5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
strain = FINITE
add_variables = true
generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_xz'
[../]
[]
[BCs]
[./xdisp]
type = FunctionDirichletBC
variable = disp_x
boundary = 'right'
function = '0.005*t'
[../]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'top'
function = '0.005*t'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
#boundary = 'bottom top'
boundary = 'bottom'
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[./zfix]
type = DirichletBC
variable = disp_z
#boundary = 'front back'
boundary = 'back'
value = 0
[../]
[]
[AuxVariables]
[./plastic_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[./sdev]
order = CONSTANT
family = MONOMIAL
[../]
[./sdet]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./plastic_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xx
index_i = 0
index_j = 0
[../]
[./plastic_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xy
index_i = 0
index_j = 1
[../]
[./plastic_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xz
index_i = 0
index_j = 2
[../]
[./plastic_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yy
index_i = 1
index_j = 1
[../]
[./plastic_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yz
index_i = 1
index_j = 2
[../]
[./plastic_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[./sdev]
type = RankTwoScalarAux
variable = sdev
rank_two_tensor = stress
scalar_type = VonMisesStress
[../]
[]
[Postprocessors]
[./sdev]
type = PointValue
point = '0 0 0'
variable = sdev
[../]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./p_xx]
type = PointValue
point = '0 0 0'
variable = plastic_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./p_xy]
type = PointValue
point = '0 0 0'
variable = plastic_xy
[../]
[./p_xz]
type = PointValue
point = '0 0 0'
variable = plastic_xz
[../]
[./p_yz]
type = PointValue
point = '0 0 0'
variable = plastic_yz
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./p_yy]
type = PointValue
point = '0 0 0'
variable = plastic_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./p_zz]
type = PointValue
point = '0 0 0'
variable = plastic_zz
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 300
[../]
[./Orthotropic]
type = SolidMechanicsPlasticOrthotropic
b = -0.2
c1 = '1 1 1 1 1 1'
c2 = '1 1 1 1 1 1'
associative = true
yield_strength = str
yield_function_tolerance = 1e-5
internal_constraint_tolerance = 1e-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '121e3 80e3'
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1e-9
plastic_models = Orthotropic
debug_fspb = crash
tangent_operator = elastic
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
num_steps = 3
dt = .5
type = Transient
nl_rel_tol = 1e-6
nl_max_its = 10
l_tol = 1e-4
l_max_its = 50
solve_type = PJFNK
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Outputs]
perf_graph = false
csv = true
[]
(modules/solid_mechanics/test/tests/tensile/planar3.i)
# checking for small deformation
# A single element is stretched by 1E-6m in the z and x directions, with lame mu = 1E6, so trial stress is 2Pa in those directions
# tensile_strength is set to 1Pa
# Then the final stress should return to the z and x stresses being 1.0 (up to tolerance), and internal parameter = (0.5+0.5)E-6 = 1.0E-6
# Using 'planar' Tensile plasticity
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
outputs = console
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
max_NR_iterations = 4
min_stepsize = 1
plastic_models = tens
debug_fspb = crash
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard_cubic.i)
# Checking evolution tensile strength for cubic hardening
# A single element is stretched by 1E-6*t in z direction, and
# the yield-surface evolution is mapped out
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 0
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 0
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 1E-6*t
[]
[]
[AuxVariables]
[wpt_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wpt_internal]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wpt_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[wpt_internal]
type = PointValue
point = '0 0 0'
variable = wpt_internal
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 4
internal_limit = 0.000003
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-11
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-11
[]
[]
[Executioner]
end_time = 4
dt = 0.5
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform3.i)
# apply a number of "random" configurations and
# check that the algorithm returns to the yield surface
#
# must be careful here - we cannot put in arbitrary values of C_ijkl, otherwise the condition
# df/dsigma * C * flow_dirn < 0 for some stresses
# The important features that must be obeyed are:
# 0 = C_0222 = C_1222 (holds for transversely isotropic, for instance)
# C_0212 < C_0202 = C_1212 (holds for transversely isotropic)
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
# the following are "random" deformations
# each is O(1E-5) to keep deformations small
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '(sin(0.1*t)+x)/1E5'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '(cos(t)+x*y)/1E5'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 'sin(0.4321*t)*x*y*z/1E5'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[]
[should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[]
[]
[Functions]
[should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5773503
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.08748866
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 100
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
# the following is transversely isotropic, i think.
fill_method = symmetric9
C_ijkl = '3E9 1E9 3E9 3E9 3E9 6E9 1E9 1E9 9E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
max_NR_iterations = 100
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E4
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/j2_plasticity/hard1.i)
# UserObject J2 test, with hardening, but with rate=0
# apply uniform compression in x direction to give
# trial stress_xx = -5, so sqrt(3*J2) = 5
# with zero Poisson's ratio, this should return to
# stress_xx = -3, stress_yy = -1 = stress_zz,
# for strength = 2
# (note that stress_xx - stress_yy = stress_xx - stress_zz = -2, so sqrt(3*j2) = 2,
# and that the mean stress remains = -5/3)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-2.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = hard1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_edge.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = inner_edge
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_inner_edge
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform3.i)
# apply nonuniform compression in x, y and z directions such that
# trial_stress(0, 0) = 2
# trial_stress(1, 1) = -8
# trial_stress(2, 2) = -10
# With compressive_strength = -1, the algorithm should return to trace(stress) = -1, or
# stress(0, 0) = 7
# stress(1, 1) = -3
# stress(2, 2) = -5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-4E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/except4.i)
# checking for exception error messages on the edge smoothing
# here edge_smoother=5deg, which means the friction_angle must be <= 35.747
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 0.52359878 # 30deg
value_residual = 0.62831853 # 36deg
rate = 3000.0
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 1
mc_edge_smoother = 5
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = except4
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform2_lode_zero.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = lode_zero
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_lode_zero
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard5.i)
# apply repeated stretches in z direction, and smaller stretches along the y direction, and compression along x direction
# Both return to the plane and edge (lode angle = 30deg, ie 010100) are experienced.
#
# It is checked that the yield functions are less than their tolerance values
# It is checked that the cohesion hardens correctly
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.05E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if((a<1E-5)&(b<1E-5)&(c<1E-5)&(d<1E-5)&(g<1E-5)&(h<1E-5),0,abs(a)+abs(b)+abs(c)+abs(d)+abs(g)+abs(h))'
symbol_names = 'a b c d g h'
symbol_values = 'f0 f1 f2 f3 f4 f5'
[../]
[./coh_analytic]
type = ParsedFunction
expression = '20-10*exp(-1E6*intnl)'
symbol_names = intnl
symbol_values = internal
[../]
[./coh_from_yieldfcns]
type = ParsedFunction
expression = '(f0+f1-(sxx+syy)*sin(phi))/(-2)/cos(phi)'
symbol_names = 'f0 f1 sxx syy phi'
symbol_values = 'f0 f1 s_xx s_yy 0.8726646'
[../]
[./should_be_zero_coh]
type = ParsedFunction
expression = 'if(abs(a-b)<1E-6,0,1E6*abs(a-b))'
symbol_names = 'a b'
symbol_values = 'Coh_analytic Coh_moose'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn0]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn1]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn2]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn3]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn4]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn5]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn0]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn0
[../]
[./yield_fcn1]
type = MaterialStdVectorAux
index = 1
property = plastic_yield_function
variable = yield_fcn1
[../]
[./yield_fcn2]
type = MaterialStdVectorAux
index = 2
property = plastic_yield_function
variable = yield_fcn2
[../]
[./yield_fcn3]
type = MaterialStdVectorAux
index = 3
property = plastic_yield_function
variable = yield_fcn3
[../]
[./yield_fcn4]
type = MaterialStdVectorAux
index = 4
property = plastic_yield_function
variable = yield_fcn4
[../]
[./yield_fcn5]
type = MaterialStdVectorAux
index = 5
property = plastic_yield_function
variable = yield_fcn5
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = yield_fcn2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = yield_fcn3
[../]
[./f4]
type = PointValue
point = '0 0 0'
variable = yield_fcn4
[../]
[./f5]
type = PointValue
point = '0 0 0'
variable = yield_fcn5
[../]
[./yfcns_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./Coh_analytic]
type = FunctionValuePostprocessor
function = coh_analytic
[../]
[./Coh_moose]
type = FunctionValuePostprocessor
function = coh_from_yieldfcns
[../]
[./cohesion_difference_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_coh
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 20
rate = 1E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 0.8726646
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 1 #0.8726646 # 50deg
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
use_custom_returnMap = true
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
[../]
[]
[Executioner]
end_time = 5
dt = 1
type = Transient
[]
[Outputs]
file_base = planar_hard5
exodus = false
[./csv]
type = CSV
hide = 'f0 f1 f2 f3 f4 f5 s_xy s_xz s_yz Coh_analytic Coh_moose'
execute_on = 'timestep_end'
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard2.i)
# apply uniform stretches in x, y and z directions.
# let friction_angle = 60deg, friction_angle_residual=10deg, friction_angle_rate = 0.5E4
# With cohesion = C, friction_angle = phi, the
# algorithm should return to
# sigma_m = C*Cos(phi)/Sin(phi)
# Or, when T=C,
# phi = arctan(C/sigma_m)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 1.04719755 # 60deg
value_residual = 0.17453293 # 10deg
rate = 0.5E4
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
shift = 1E-12
use_custom_returnMap = true
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.0E7 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = planar_hard2
exodus = false
[./csv]
type = CSV
execute_on = timestep_end
[../]
[]
(modules/solid_mechanics/tutorials/basics/part_2.4.i)
#Tensor Mechanics tutorial: the basics
#Step 2, part 4
#2D axisymmetric RZ simulation of uniaxial tension with J2 plasticity with
#hardening
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Mesh]
file = necking_quad4.e
uniform_refine = 0
second_order = true
[]
[Physics/SolidMechanics/QuasiStatic]
[./block1]
strain = FINITE
add_variables = true
generate_output = 'stress_yy strain_yy vonmises_stress'
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 2.1e5
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1e-9
plastic_models = J2
[../]
[]
[UserObjects]
[./hardening]
type = SolidMechanicsHardeningCubic
value_0 = 2.4e2
value_residual = 3.0e2
internal_0 = 0
internal_limit = 0.005
[../]
[./J2]
type = SolidMechanicsPlasticJ2
yield_strength = hardening
yield_function_tolerance = 1E-9
internal_constraint_tolerance = 1E-9
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = disp_r
boundary = left
value = 0.0
[../]
[./bottom]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0.0
[../]
[./top]
type = FunctionDirichletBC
variable = disp_z
boundary = top
function = '0.0007*t'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
dt = 0.25
end_time = 20
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-pc_type -sub_pc_type -pc_asm_overlap -ksp_gmres_restart'
petsc_options_value = 'asm lu 1 101'
[]
[Postprocessors]
[./ave_stress_bottom]
type = SideAverageValue
variable = stress_yy
boundary = bottom
[../]
[./ave_strain_bottom]
type = SideAverageValue
variable = strain_yy
boundary = bottom
[../]
[]
[Outputs]
exodus = true
perf_graph = true
csv = true
print_linear_residuals = false
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/except2.i)
# checking for exception error messages
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 1
mc_edge_smoother = 25
mc_lode_cutoff = -1.0E-6
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = except2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto02.i)
# checking jacobian for linear plasticity (weak_plane_tensile)
# with hardening
[Mesh]
type = GeneratedMesh
dim = 3
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[ICs]
[./disp_x]
type = RandomIC
variable = disp_x
min = -0.1
max = 0.1
[../]
[./disp_y]
type = RandomIC
variable = disp_y
min = -0.1
max = 0.1
[../]
[./disp_z]
type = RandomIC
variable = disp_z
min = -0.1
max = 0.1
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1 2'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '1 2 3 2 -4 -5 3 -5 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
tangent_operator = linear
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/multi/three_surface09.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.0E-6m in y direction and 0.0E-6 in z direction.
# trial stress_yy = 2.0 and stress_zz = 0.0
#
# Then SimpleTester1 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=1.0, stress_zz=0.5
# However, this will mean that internal2<0, so SimpleTester2 will be deactivated
# and the algorithm will return to stress_yy=1
# internal1 should be 1.0, and internal2 should be 0
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface09
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard_cubic.i)
# apply uniform stretches in x, y and z directions.
# let cohesion = 10, cohesion_residual = 2, cohesion_limit = 0.0003
# With cohesion = C, friction_angle = 60deg, tip_smoother = 4, the
# algorithm should return to
# sigma_m = (C*Cos(60) - 4)/Sin(60)
# This allows checking of the relationship for C
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 2
internal_limit = 0.0003
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 1 2 1 10 3 2 3 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1E-4
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-8
[../]
[]
[Executioner]
end_time = 10
dt = 0.25
type = Transient
[]
[Outputs]
file_base = small_deform_hard_cubic
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform4.i)
# apply a pure tension, then some shear
# the BCs are designed to map out the yield function, showing
# the affect of 'cap' smoothing
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = 'if(t<1E-6,0,3*(t-1E-6)*(t-1E-6)*1E6)'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = 'if(t<1E-6,0,5*(t-1E-6)*(t-1E-6)*1E6)'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 'if(t<1E-6,t,1E-6)'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[iter]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[iter]
type = PointValue
point = '0 0 0'
variable = iter
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.08748866
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tip_scheme = cap
smoother = 0
cap_rate = 0.001
cap_start = -1000.0
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-4
plastic_models = wps
transverse_direction = '0 0 1'
debug_fspb = crash
debug_jac_at_stress = '1E4 2E4 3E4 2E4 -4E4 5E4 3E4 5E4 6E8'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-3
debug_pm_change = 1E-5
debug_intnl_change = 1E-5
[]
[]
[Executioner]
end_time = 2E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/multi/paper5.i)
# This runs the J2+cap+hardening example model described in the 'MultiSurface' plasticity paper
#
# Plasticity models:
# J2 with strength = 20MPa to 10MPa in 100% strain
# Compressive cap with strength = 15MPa to 5MPa in 100% strain
#
# Lame lambda = 1.2GPa. Lame mu = 1.2GPa (Young = 3GPa, poisson = 0.25)
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl0]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl1]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./intnl0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl0
[../]
[./intnl1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 1
variable = intnl1
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_f0]
type = ElementExtremeValue
variable = f0
outputs = console
[../]
[./max_f1]
type = ElementExtremeValue
variable = f1
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console csv'
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console csv'
[../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console csv'
[../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console csv'
[../]
[]
[UserObjects]
[./yield_strength]
type = SolidMechanicsHardeningCubic
value_0 = 20E6
value_residual = 10E6
internal_limit = 1
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = yield_strength
yield_function_tolerance = 1.0E2
internal_constraint_tolerance = 1.0E-7
use_custom_returnMap = false
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = 15E6
value_residual = 5E6
internal_limit = 1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCap
a = -1
strength = compressive_strength
yield_function_tolerance = 1.0E2
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.2E9 1.2E9'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = 'j2 cap'
max_NR_iterations = 10
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
tangent_operator = elastic # tangent operator is unimportant in this test
debug_fspb = crash
debug_jac_at_stress = '10E6 0 0 0 10E6 0 0 0 10E6'
debug_jac_at_pm = '1E-2 1E-2'
debug_jac_at_intnl = '0.05 0.05'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = paper5
exodus = false
csv = true
perf_graph = true
[]
(modules/solid_mechanics/test/tests/multi/three_surface11.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 0E-6m in y direction and 2E-6 in z direction.
# trial stress_yy = 0 and stress_zz = 2.0
#
# Then SimpleTester0 should activate and the algorithm will return to
# stress_zz=1
# internal0 should be 1.0
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface11
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto20.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod_small_strain.i)
# Test designed to compare results and active time between SH/LinearStrainHardening
# material vs TM j2 plastic user object. As number of elements increases, TM
# active time increases at a much higher rate than SM. Testing at 4x4x4
# (64 elements).
#
# plot vm_stress vs intnl to see constant hardening
#
# Original test located at:
# solid_mechanics/tests/j2_plasticity/hard1.i
[Mesh]
type = GeneratedMesh
dim = 3
nx = 4
ny = 4
nz = 4
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
displacements = 'disp_x disp_y disp_z'
[]
[Variables]
[disp_x]
order = FIRST
family = LAGRANGE
[]
[disp_y]
order = FIRST
family = LAGRANGE
[]
[disp_z]
order = FIRST
family = LAGRANGE
[]
[]
[Kernels]
[TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[]
[]
[AuxVariables]
[stress_zz]
order = CONSTANT
family = MONOMIAL
[]
[intnl]
order = CONSTANT
family = MONOMIAL
[]
[vm_stress]
order = CONSTANT
family = MONOMIAL
[]
[eq_pl_strain]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[]
[intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[]
[eq_pl_strain]
type = RankTwoScalarAux
rank_two_tensor = plastic_strain
scalar_type = EffectiveStrain
variable = eq_pl_strain
[]
[vm_stress]
type = RankTwoScalarAux
rank_two_tensor = stress
scalar_type = VonMisesStress
variable = vm_stress
[]
[]
[BCs]
[left]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[]
[bottom]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[]
[back]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[z]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 't/60'
[]
[]
[UserObjects]
[str]
type = TensorMechanicsHardeningConstant
value = 2.4e2
[]
[j2]
type = TensorMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
#with E = 2.1e5 and nu = 0.3
#Hooke's law: E-nu to Lambda-G
C_ijkl = '121154 80769.2'
[]
[strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[]
[mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
tangent_operator = elastic
perform_finite_strain_rotations = false
[]
[]
[Executioner]
type = Transient
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-6
nl_abs_tol = 1e-10
l_tol = 1e-4
start_time = 0.0
end_time = 0.5
dt = 0.01
[]
[Postprocessors]
[stress_zz]
type = ElementAverageValue
variable = stress_zz
[]
[intnl]
type = ElementAverageValue
variable = intnl
[]
[eq_pl_strain]
type = PointValue
point = '0 0 0'
variable = eq_pl_strain
[]
[vm_stress]
type = PointValue
point = '0 0 0'
variable = vm_stress
[]
[]
[Outputs]
csv = true
print_linear_residuals = false
perf_graph = true
[]
(modules/solid_mechanics/test/tests/notched_plastic_block/biaxial_abbo.i)
# Uses an Abbo et al smoothed version of Mohr-Coulomb (via SolidMechanicsPlasticMohrCoulomb and ComputeMultiPlasticityStress) to simulate the following problem.
# A cubical block is notched around its equator.
# All of its outer surfaces have roller BCs, but the notched region is free to move as needed
# The block is initialised with a high hydrostatic tensile stress
# Without the notch, the BCs do not allow contraction of the block, and this stress configuration is admissible
# With the notch, however, the interior parts of the block are free to move in order to relieve stress, and this causes plastic failure
# The top surface is then pulled upwards (the bottom is fixed because of the roller BCs)
# This causes more failure
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 9
ny = 9
nz = 9
xmin = 0
xmax = 0.1
ymin = 0
ymax = 0.1
zmin = 0
zmax = 0.1
[]
[block_to_remove_xmin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.01 0.11 0.055'
location = INSIDE
block_id = 1
input = generated_mesh
[]
[block_to_remove_xmax]
type = SubdomainBoundingBoxGenerator
bottom_left = '0.09 -0.01 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmin
[]
[block_to_remove_ymin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.11 0.01 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmax
[]
[block_to_remove_ymax]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 0.09 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_ymin
[]
[remove_block]
type = BlockDeletionGenerator
block = 1
input = block_to_remove_ymax
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
generate_output = 'max_principal_stress mid_principal_stress min_principal_stress stress_zz'
eigenstrain_names = ini_stress
[../]
[]
[Postprocessors]
[./uz]
type = PointValue
point = '0 0 0.1'
use_displaced_mesh = false
variable = disp_z
[../]
[./s_zz]
type = ElementAverageValue
use_displaced_mesh = false
variable = stress_zz
[../]
[./num_res]
type = NumResidualEvaluations
[../]
[./nr_its] # num_iters is the average number of NR iterations encountered per element in this timestep
type = ElementAverageValue
variable = num_iters
[../]
[./max_nr_its] # num_iters is the average number of NR iterations encountered in the element in this timestep, so we must get max(max_nr_its) to obtain the max number of iterations
type = ElementExtremeValue
variable = num_iters
[../]
[./runtime]
type = PerfGraphData
data_type = TOTAL
section_name = 'Root'
[../]
[]
[BCs]
# back=zmin, front=zmax, bottom=ymin, top=ymax, left=xmin, right=xmax
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./xmax_xzero]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./ymax_yzero]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[../]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = back
value = '0'
[../]
[./zmax_disp]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '1E-6*max(t,0)'
[../]
[]
[AuxVariables]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./num_iters]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./num_iters_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = num_iters
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 5E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 10
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0.02E6
mc_edge_smoother = 29
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 16E9
poissons_ratio = 0.25
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[../]
[./strain_from_initial_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6E6 0 0 0 6E6 0 0 0 6E6'
eigenstrain_name = ini_stress
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
start_time = -1
end_time = 10
dt = 1
solve_type = NEWTON
type = Transient
l_tol = 1E-2
nl_abs_tol = 1E-5
nl_rel_tol = 1E-7
l_max_its = 200
nl_max_its = 400
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = biaxial_abbo
perf_graph = true
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/tensile/planar1.i)
# checking for small deformation
# A single element is stretched by 1E-6m in z direction, and by small amounts in x and y directions
# stress_zz = Youngs Modulus*Strain = 2E6*1E-6 = 2 Pa
# tensile_strength is set to 1Pa
# Then the final stress should return to the yeild surface and the maximum principal stress value should be 1pa, and value of plastic strain should be 0.5E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.2E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.0E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = tens
debug_fspb = crash
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden3.i)
# apply repeated stretches to observe cohesion hardening
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = '0'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = '2*t'
[]
[]
[AuxVariables]
[wps_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wps_internal_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wps_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[int]
type = PointValue
point = '0 0 0'
variable = wps_internal
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningExponential
value_0 = 1E3
value_residual = 2E3
rate = 0
[]
[tanphi]
type = SolidMechanicsHardeningExponential
value_0 = 1
value_residual = 0.577350269
rate = 4E4
[]
[tanpsi]
type = SolidMechanicsHardeningExponential
value_0 = 0.01745506
value_residual = 0.01745506
rate = 1E8
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 500
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial1_small_strain.i)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
# back = zmin
# front = zmax
# bottom = ymin
# top = ymax
# left = xmin
# right = xmax
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = '0'
[../]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'back'
value = '0'
[../]
[./zmax_disp]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front'
function = '-1E-3*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./mc_int]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.6981317 # 40deg
rate = 10000
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-10
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '5.77E10 3.85E10' # young = 100Gpa, poisson = 0.3
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-10
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 0.5
dt = 0.05
solve_type = NEWTON
type = Transient
line_search = 'none'
nl_rel_tol = 1E-10
l_tol = 1E-3
l_max_its = 200
nl_max_its = 10
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = uni_axial1_small_strain
exodus = true
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform1_uo.i)
# apply uniform stretch in x, y and z directions.
# With cohesion = 10, friction_angle = 60deg, tip_smoother = 4, the
# algorithm should return to
# sigma_m = (10*Cos(60) - 4)/Sin(60) = 1.1547
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform1_uo
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto06.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface05.i
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 1 and stress_zz = 1
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1
# However, this will mean internal0 < 0, so SimpleTester0 will be deactivated and
# then the algorithm will return to
# stress_yy=0.7, stress_zz=0.8
# internal0 should be 0.0, and internal2 should be 0.3E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 1 0 0 0 1.1'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard4.i)
# apply repeated stretches in x direction, and smaller stretches along the y and z directions,
# so that sigma_II = sigma_III,
# which means that lode angle = -30deg.
# Both return to the edge (at lode_angle=-30deg, ie 000101) and tip are experienced.
#
# It is checked that the yield functions are less than their tolerance values
# It is checked that the cohesion hardens correctly
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.05E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.05E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if((a<1E-5)&(b<1E-5)&(c<1E-5)&(d<1E-5)&(g<1E-5)&(h<1E-5),0,abs(a)+abs(b)+abs(c)+abs(d)+abs(g)+abs(h))'
symbol_names = 'a b c d g h'
symbol_values = 'f0 f1 f2 f3 f4 f5'
[../]
[./coh_analytic]
type = ParsedFunction
expression = '20-10*exp(-1E5*intnl)'
symbol_names = intnl
symbol_values = internal
[../]
[./coh_from_yieldfcns]
type = ParsedFunction
expression = '(f0+f1-(sxx+syy)*sin(phi))/(-2)/cos(phi)'
symbol_names = 'f0 f1 sxx syy phi'
symbol_values = 'f0 f1 s_xx s_yy 0.8726646'
[../]
[./should_be_zero_coh]
type = ParsedFunction
expression = 'if(abs(a-b)<1E-6,0,1E6*abs(a-b))'
symbol_names = 'a b'
symbol_values = 'Coh_analytic Coh_moose'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn0]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn1]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn2]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn3]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn4]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn5]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn0]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn0
[../]
[./yield_fcn1]
type = MaterialStdVectorAux
index = 1
property = plastic_yield_function
variable = yield_fcn1
[../]
[./yield_fcn2]
type = MaterialStdVectorAux
index = 2
property = plastic_yield_function
variable = yield_fcn2
[../]
[./yield_fcn3]
type = MaterialStdVectorAux
index = 3
property = plastic_yield_function
variable = yield_fcn3
[../]
[./yield_fcn4]
type = MaterialStdVectorAux
index = 4
property = plastic_yield_function
variable = yield_fcn4
[../]
[./yield_fcn5]
type = MaterialStdVectorAux
index = 5
property = plastic_yield_function
variable = yield_fcn5
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = yield_fcn2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = yield_fcn3
[../]
[./f4]
type = PointValue
point = '0 0 0'
variable = yield_fcn4
[../]
[./f5]
type = PointValue
point = '0 0 0'
variable = yield_fcn5
[../]
[./yfcns_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./Coh_analytic]
type = FunctionValuePostprocessor
function = coh_analytic
[../]
[./Coh_moose]
type = FunctionValuePostprocessor
function = coh_from_yieldfcns
[../]
[./cohesion_difference_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_coh
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 20
rate = 1E5
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 0.8726646
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 1 #0.8726646 # 50deg
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
use_custom_returnMap = true
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
[../]
[]
[Executioner]
end_time = 10
dt = 2
type = Transient
[]
[Outputs]
file_base = planar_hard4
exodus = false
[./csv]
type = CSV
hide = 'f0 f1 f2 f3 f4 f5 s_xy s_xz s_yz Coh_analytic Coh_moose'
execute_on = 'timestep_end'
[../]
[]
(modules/solid_mechanics/test/tests/lagrangian/cartesian/updated/cross_material/convergence/plastic_j2.i)
# Simple 3D test
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
large_kinematics = false
[]
[Variables]
[disp_x]
[]
[disp_y]
[]
[disp_z]
[]
[]
[Mesh]
[msh]
type = GeneratedMeshGenerator
dim = 3
nx = 4
ny = 4
nz = 4
[]
[]
[ICs]
[disp_x]
type = RandomIC
variable = disp_x
min = -0.02
max = 0.02
[]
[disp_y]
type = RandomIC
variable = disp_y
min = -0.02
max = 0.02
[]
[disp_z]
type = RandomIC
variable = disp_z
min = -0.02
max = 0.02
[]
[]
[Kernels]
[sdx]
type = UpdatedLagrangianStressDivergence
variable = disp_x
component = 0
use_displaced_mesh = false
[]
[sdy]
type = UpdatedLagrangianStressDivergence
variable = disp_y
component = 1
use_displaced_mesh = false
[]
[sdz]
type = UpdatedLagrangianStressDivergence
variable = disp_z
component = 2
use_displaced_mesh = false
[]
[]
[Functions]
[pullx]
type = ParsedFunction
expression = '4000 * t'
[]
[pully]
type = ParsedFunction
expression = '-2000 * t'
[]
[pullz]
type = ParsedFunction
expression = '3000 * t'
[]
[]
[BCs]
[leftx]
type = DirichletBC
preset = true
boundary = left
variable = disp_x
value = 0.0
[]
[lefty]
type = DirichletBC
preset = true
boundary = left
variable = disp_y
value = 0.0
[]
[leftz]
type = DirichletBC
preset = true
boundary = left
variable = disp_z
value = 0.0
[]
[pull_x]
type = FunctionNeumannBC
boundary = right
variable = disp_x
function = pullx
[]
[pull_y]
type = FunctionNeumannBC
boundary = top
variable = disp_y
function = pully
[]
[pull_z]
type = FunctionNeumannBC
boundary = right
variable = disp_z
function = pullz
[]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 100.0
epsilon0 = 1.0
exponent = 1.0
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[elastic_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 100000.0
poissons_ratio = 0.3
[]
[compute_stress]
type = ComputeLagrangianWrappedStress
[]
[compute_stress_base]
type = ComputeMultiPlasticityStress
plastic_models = j2
ep_plastic_tolerance = 1E-9
[]
[compute_strain]
type = ComputeLagrangianStrain
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'newton'
line_search = none
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
l_max_its = 2
l_tol = 1e-14
nl_max_its = 15
nl_rel_tol = 1e-8
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
dtmin = 1.0
end_time = 1.0
[]
(modules/solid_mechanics/test/tests/tensile/small_deform6.i)
# checking for small deformation
# A single element is incrementally stretched in the in the z direction
# This causes the return direction to be along the hypersurface sigma_II = sigma_III,
# and the resulting stresses are checked to lie on the expected yield surface
#
# tensile_strength is set to 1Pa, tip_smoother = 0.5
# Lode angle = -30degrees
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.25E-6*z*t*t'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.5
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform6
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/random_planar.i)
# Plasticity models:
# Planar tensile with strength = 1MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 1250
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 1250
zmin = 0
zmax = 1
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./tot_iters]
type = ElementIntegralMaterialProperty
mat_prop = plastic_NR_iterations
outputs = console
[../]
[./raw_f0]
type = ElementExtremeValue
variable = f0
outputs = console
[../]
[./raw_f1]
type = ElementExtremeValue
variable = f1
outputs = console
[../]
[./raw_f2]
type = ElementExtremeValue
variable = f2
outputs = console
[../]
[./iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./f0]
type = FunctionValuePostprocessor
function = should_be_zero0_fcn
[../]
[./f1]
type = FunctionValuePostprocessor
function = should_be_zero1_fcn
[../]
[./f2]
type = FunctionValuePostprocessor
function = should_be_zero2_fcn
[../]
[]
[Functions]
[./should_be_zero0_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f0'
[../]
[./should_be_zero1_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f1'
[../]
[./should_be_zero2_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f2'
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningCubic
value_0 = 1E6
value_residual = 0
internal_limit = 1
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
yield_function_tolerance = 1.0E-1
shift = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1E9 1.3E9'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
deactivation_scheme = 'safe_to_dumb'
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile'
max_NR_iterations = 5
min_stepsize = 1E-3
max_stepsize_for_dumb = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random_planar
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar3.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.25E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.9
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.1
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = coh
friction_angle = phi
dilation_angle = psi
yield_function_tolerance = 1E-8
shift = 1E-8
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
deactivation_scheme = safe
max_NR_iterations = 3
min_stepsize = 1
max_stepsize_for_dumb = 1
debug_fspb = crash
debug_jac_at_stress = '10 5 2 5 11 -1 2 -1 12'
debug_jac_at_pm = '1 1 1 1 1 1'
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = planar3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/notched_plastic_block/cmc_planar.i)
# Uses an unsmoothed version of capped-Mohr-Coulomb (via ComputeMultiPlasticityStress with SolidMechanicsPlasticTensileMulti and SolidMechanicsPlasticMohrCoulombMulti) to simulate the following problem.
# A cubical block is notched around its equator.
# All of its outer surfaces have roller BCs, but the notched region is free to move as needed
# The block is initialised with a high hydrostatic tensile stress
# Without the notch, the BCs do not allow contraction of the block, and this stress configuration is admissible
# With the notch, however, the interior parts of the block are free to move in order to relieve stress, and this causes plastic failure
# The top surface is then pulled upwards (the bottom is fixed because of the roller BCs)
# This causes more failure
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 9
ny = 9
nz = 9
xmin = 0
xmax = 0.1
ymin = 0
ymax = 0.1
zmin = 0
zmax = 0.1
[]
[block_to_remove_xmin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.01 0.11 0.055'
location = INSIDE
block_id = 1
input = generated_mesh
[]
[block_to_remove_xmax]
type = SubdomainBoundingBoxGenerator
bottom_left = '0.09 -0.01 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmin
[]
[block_to_remove_ymin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.11 0.01 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmax
[]
[block_to_remove_ymax]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 0.09 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_ymin
[]
[remove_block]
type = BlockDeletionGenerator
block = 1
input = block_to_remove_ymax
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
generate_output = 'max_principal_stress mid_principal_stress min_principal_stress stress_zz'
eigenstrain_names = ini_stress
[../]
[]
[Postprocessors]
[./uz]
type = PointValue
point = '0 0 0.1'
use_displaced_mesh = false
variable = disp_z
[../]
[./s_zz]
type = ElementAverageValue
use_displaced_mesh = false
variable = stress_zz
[../]
[./num_res]
type = NumResidualEvaluations
[../]
[./nr_its]
type = ElementAverageValue
variable = num_iters
[../]
[./max_nr_its]
type = ElementExtremeValue
variable = num_iters
[../]
[./runtime]
type = PerfGraphData
data_type = TOTAL
section_name = 'Root'
[../]
[]
[BCs]
# back=zmin, front=zmax, bottom=ymin, top=ymax, left=xmin, right=xmax
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./xmax_xzero]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./ymax_yzero]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[../]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = back
value = '0'
[../]
[./zmax_disp]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '1E-6*max(t,0)'
[../]
[]
[AuxVariables]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_strain]
order = CONSTANT
family = MONOMIAL
[../]
[./num_iters]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./plastic_strain_aux]
type = MaterialRankTwoTensorAux
i = 2
j = 2
property = plastic_strain
variable = plastic_strain
[../]
[./num_iters_auxk] # cannot use plastic_NR_iterations directly as this is zero, since no NR iterations are actually used, since we use a custom algorithm to do the return
type = ParsedAux
coupled_variables = plastic_strain
expression = 'if(plastic_strain>0,1,0)'
variable = num_iters
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 3E6
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1
internal_constraint_tolerance = 1.0E-6
#shift = 1
use_custom_returnMap = false
use_custom_cto = false
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 5E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 10
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
use_custom_returnMap = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 16E9
poissons_ratio = 0.25
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-6
plastic_models = 'tensile mc'
max_NR_iterations = 50
specialIC = rock
deactivation_scheme = safe_to_dumb
debug_fspb = crash
[../]
[./strain_from_initial_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '2.5E6 0 0 0 2.5E6 0 0 0 2.5E6'
eigenstrain_name = ini_stress
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
start_time = -1
end_time = 10
dt = 1
solve_type = NEWTON
type = Transient
l_tol = 1E-2
nl_abs_tol = 1E-5
nl_rel_tol = 1E-7
l_max_its = 200
nl_max_its = 400
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = cmc_planar
perf_graph = true
exodus = false
csv = true
[]
(modules/combined/test/tests/j2_plasticity_vs_LSH/necking/j2_hard1_neckingRZ.i)
#
[Mesh]
file = necking_quad4.e
[]
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Variables]
[./disp_r]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./AxisymmetricRZ]
use_displaced_mesh = true
# save_in_disp_r = force_r
save_in_disp_z = force_z
[../]
[]
[AuxVariables]
[./stress_rr]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_rr]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_zz]
order = CONSTANT
family = MONOMIAL
[../]
# [./force_r]
# order = FIRST
# family = LAGRANGE
# [../]
[./force_z]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxKernels]
[./stress_rr]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_rr
index_i = 0
index_j = 0
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 1
index_j = 1
[../]
[./strain_rr]
type = RankTwoAux
rank_two_tensor = total_strain
variable = strain_rr
index_i = 0
index_j = 0
[../]
[./strain_zz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = strain_zz
index_i = 1
index_j = 1
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = disp_r
boundary = left
value = 0.0
[../]
[./bottom]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0.0
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = top
function = 't/5'
[../]
[]
[UserObjects]
[./str]
type = TensorMechanicsHardeningConstant
value = 2.4e2
[../]
[./j2]
type = TensorMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
#with E = 2.1e5 and nu = 0.3
#changed to SM values using E-nu to Lambda-G
C_ijkl = '121154 80769.2'
[../]
[./strain]
type = ComputeAxisymmetricRZFiniteStrain
block = 1
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-9
plastic_models = j2
[../]
[]
[Executioner]
end_time = 0.1
dt = 0.005
type = Transient
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-6
nl_abs_tol = 1e-15
l_tol = 1e-9
[]
[Postprocessors]
[./stress_rr]
type = ElementAverageValue
variable = stress_rr
[../]
[./stress_zz]
type = ElementAverageValue
variable = stress_zz
[../]
[./strain_rr]
type = ElementAverageValue
variable = strain_rr
[../]
[./strain_zz]
type = ElementAverageValue
variable = strain_zz
[../]
[./disp_z]
type = NodalSum
variable = disp_z
boundary = top
[../]
[./force_z]
type = NodalSum
variable = force_z
boundary = top
[../]
[]
[Outputs]
exodus = true
csv = true
print_linear_residuals = false
perf_graph = true
[]
(modules/solid_mechanics/test/tests/j2_plasticity/small_deform1.i)
# UserObject J2 test
# apply uniform stretch in x, y and z directions.
# no plasticity should be observed
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface12.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.5E-6m in y direction and 1.5E-6 in z direction.
# trial stress_yy = .15 and stress_zz = 1.5
#
# Then SimpleTester0 and SimpleTester1 should activate and the algorithm will return to
# stress_zz=1=stress_yy
# internal0 should be 0.5 and internal1 should be 0.5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface12
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/except2.i)
# checking for exception error messages
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 8E-6
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 6E-6
[]
[topz]
type = DirichletBC
variable = z_disp
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.1111077
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 0
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 0'
ep_plastic_tolerance = 1E-3
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
(modules/solid_mechanics/test/tests/multi/paper1.i)
# This runs the models mentioned in the first example of the Multi-Surface paper
#
# Plasticity models:
# SimpleTester with a = 1 and b = 0 and strength = 1E9 (only does elasticity)
# SimpleTester with a = 1 and b = 0 and strength = 0
# SimpleTester with a = 1 and b = 0 and strength = 1E-3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 125
nz = 1
xmin = 0
xmax = 1
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = console
[../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = console
[../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = console
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = console
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1E9
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 0
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1E-3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
active = 'elasticity_tensor strain single'
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./elastic_model]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'simple0'
[../]
[./single]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'simple1'
[../]
[./double]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'simple1 simple2'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = paper1
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto16.i)
# Jacobian check for nonlinear, multi-surface plasticity.
# Returns to the tip of the tensile yield surface
# This is a very nonlinear test and a delicate test because it perturbs around
# a tip of the yield function where some derivatives are not well defined
#
# Plasticity models:
# Tensile with strength = 1MPa softening to 0.5MPa in 2E-2 strain
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int0
index = 0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int1
index = 1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int2
index = 2
[../]
[]
[Postprocessors]
[./max_int0]
type = ElementExtremeValue
variable = int0
outputs = console
[../]
[./max_int1]
type = ElementExtremeValue
variable = int1
outputs = console
[../]
[./max_int2]
type = ElementExtremeValue
variable = int2
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console' [../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console' [../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console' [../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console' [../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0.5
internal_limit = 2E-2
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E-6 # Note larger value
shift = 1.0E-6 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.0E3 1.3E3'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '15 1 0.2 1 10 -0.3 -0.3 0.2 8'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile'
max_NR_iterations = 5
deactivation_scheme = 'safe'
min_stepsize = 1
tangent_operator = nonlinear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
[Outputs]
file_base = cto16
exodus = false
[]
(modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod_optimised.i)
# Test designed to compare results and active time between SH/LinearStrainHardening
# material vs TM j2 plastic user object. As number of elements increases, TM
# active time increases at a much higher rate than SM. Testing at 4x4x4
# (64 elements).
#
# plot vm_stress vs intnl to see constant hardening
#
# Original test located at:
# solid_mechanics/tests/j2_plasticity/hard1.i
[Mesh]
type = GeneratedMesh
dim = 3
nx = 4
ny = 4
nz = 4
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
displacements = 'disp_x disp_y disp_z'
[]
[Variables]
[disp_x]
order = FIRST
family = LAGRANGE
[]
[disp_y]
order = FIRST
family = LAGRANGE
[]
[disp_z]
order = FIRST
family = LAGRANGE
[]
[]
[Kernels]
[TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[]
[]
[AuxVariables]
[stress_zz]
order = CONSTANT
family = MONOMIAL
[]
[intnl]
order = CONSTANT
family = MONOMIAL
[]
[vm_stress]
order = CONSTANT
family = MONOMIAL
[]
[eq_pl_strain]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[]
[intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[]
[eq_pl_strain]
type = RankTwoScalarAux
rank_two_tensor = plastic_strain
scalar_type = EffectiveStrain
variable = eq_pl_strain
[]
[vm_stress]
type = RankTwoScalarAux
rank_two_tensor = stress
scalar_type = VonMisesStress
variable = vm_stress
[]
[]
[BCs]
[left]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[]
[bottom]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[]
[back]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[z]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 't/60'
[]
[]
[UserObjects]
[str]
type = TensorMechanicsHardeningConstant
value = 2.4e2
[]
[j2]
type = TensorMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
#with E = 2.1e5 and nu = 0.3
#Hooke's law: E-nu to Lambda-G
C_ijkl = '121154 80769.2'
[]
[strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[]
[mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
perform_finite_strain_rotations = false
[]
[]
[Preconditioning]
[andy]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
#Preconditioned JFNK (default)
solve_type = NEWTON
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
#line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-6
nl_abs_tol = 1e-10
l_tol = 1e-4
start_time = 0.0
end_time = 0.5
dt = 0.5
[]
[Postprocessors]
[stress_zz]
type = ElementAverageValue
variable = stress_zz
[]
[intnl]
type = ElementAverageValue
variable = intnl
[]
[eq_pl_strain]
type = PointValue
point = '0 0 0'
variable = eq_pl_strain
[]
[vm_stress]
type = PointValue
point = '0 0 0'
variable = vm_stress
[]
[]
[Outputs]
csv = true
print_linear_residuals = false
perf_graph = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial1.i)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
# back = zmin
# front = zmax
# bottom = ymin
# top = ymax
# left = xmin
# right = xmax
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = '0'
[../]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'back'
value = '0'
[../]
[./zmax_disp]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front'
function = '-1E-3*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./mc_int]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.6981317 # 40deg
rate = 10000
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-10
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '5.77E10 3.85E10' # young = 100Gpa, poisson = 0.3
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-10
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 0.5
dt = 0.05
solve_type = PJFNK # cannot use NEWTON because we are using ComputeFiniteStrain, and hence the Jacobian contributions will not be correct, even though ComputeMultiPlasticityStress will compute the correct consistent tangent operator for small strains
type = Transient
line_search = 'none'
nl_rel_tol = 1E-10
l_tol = 1E-3
l_max_its = 200
nl_max_its = 10
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = uni_axial1
exodus = true
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/large_deform4.i)
# apply a number of "random" configurations and
# check that the algorithm returns to the yield surface
# using the 'cap' tip_scheme
#
# must be careful here - we cannot put in arbitrary values of C_ijkl, otherwise the condition
# df/dsigma * C * flow_dirn < 0 for some stresses
# The important features that must be obeyed are:
# 0 = C_0222 = C_1222 (holds for transversely isotropic, for instance)
# C_0212 < C_0202 = C_1212 (holds for transversely isotropic)
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
# the following are "random" deformations
# each is O(1E-1) to provide large deformations
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '(sin(0.1*t)+x)/1E1'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '(cos(t)+x*y)/1E1'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 'sin(0.4321*t)*x*y*z/1E1'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[]
[should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[]
[]
[Functions]
[should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.577350269
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.08748866
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tip_scheme = cap
smoother = 100
cap_rate = 0.001
cap_start = 0.0
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
# the following is transversely isotropic, i think.
fill_method = symmetric9
C_ijkl = '3E9 1E9 3E9 3E9 3E9 6E9 1E9 1E9 9E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
max_NR_iterations = 100
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E4
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/j2_plasticity/small_deform3.i)
# UserObject J2 test
# apply uniform compression in x direction to give
# trial stress_xx = -7, so sqrt(3*J2) = 7
# with zero Poisson's ratio, this should return to
# stress_xx = -3, stress_yy = -2 = stress_zz
# (note that stress_xx - stress_yy = stress_xx - stress_zz = -1, so sqrt(3*j2) = 1,
# and that the mean stress remains = -7/3)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-3.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform7.i)
# apply nonuniform stretch in x, y and z directions using
# Lame lambda = 0.7E7, Lame mu = 1.0E7,
# trial_stress(0, 0) = 2.9
# trial_stress(1, 1) = 10.9
# trial_stress(2, 2) = 14.9
# With tensile_strength = 2, decaying to zero at internal parameter = 4E-7
# via a Cubic, the algorithm should return to:
# internal parameter = 2.26829E-7
# trace(stress) = 0.799989 = tensile_strength
# stress(0, 0) = -6.4
# stress(1, 1) = 1.6
# stress(2, 2) = 5.6
# THEN apply a nonuniform compression in x, y, and z so that
# trial_stress(0, 0)
# With compressive_strength = -1, decaying to -0.5 at internal parameter 1E-8
# via a Cubic, the algorithm should return to
# trial_stress(0, 0) = -3.1
# trial_stress(1, 1) = -3.1
# trial_stress(2, 2) = 2.9
# the algorithm should return to trace(stress) = -0.5 = compressive_strength
# stress(0, 0) = -2.1667
# stress(1, 1) = -2.1667
# stress(2, 2) = 3.8333
# and internal parameter = 2.0406E-7
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = 'if(t<1.5,-1E-7*x,1E-7*x)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = 'if(t<1.5,3E-7*y,1E-7*y)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = 'if(t<1.5,5E-7*z,4E-7*z)'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 2
value_residual = 0
internal_limit = 4E-7
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -1
value_residual = -0.5
internal_limit = 1E-8
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-11
plastic_models = cap
[../]
[]
[Executioner]
end_time = 2
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform7
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/lagrangian/cartesian/total/cross_material/correctness/plastic_j2.i)
# Simple 3D test
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
large_kinematics = false
[]
[Variables]
[disp_x]
[]
[disp_y]
[]
[disp_z]
[]
[]
[Mesh]
[msh]
type = GeneratedMeshGenerator
dim = 3
nx = 2
ny = 1
nz = 1
[]
[]
[AuxVariables]
[strain_xx]
order = CONSTANT
family = MONOMIAL
[]
[strain_yy]
order = CONSTANT
family = MONOMIAL
[]
[strain_zz]
order = CONSTANT
family = MONOMIAL
[]
[strain_xy]
order = CONSTANT
family = MONOMIAL
[]
[strain_xz]
order = CONSTANT
family = MONOMIAL
[]
[strain_yz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xx]
order = CONSTANT
family = MONOMIAL
[]
[stress_yy]
order = CONSTANT
family = MONOMIAL
[]
[stress_zz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xy]
order = CONSTANT
family = MONOMIAL
[]
[stress_yz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xz]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[stress_xx]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[]
[stress_yy]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[]
[stress_zz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_zz
index_i = 2
index_j = 2
execute_on = timestep_end
[]
[stress_xy]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[]
[stress_xz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xz
index_i = 0
index_j = 2
execute_on = timestep_end
[]
[stress_yz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_yz
index_i = 1
index_j = 2
execute_on = timestep_end
[]
[strain_xx]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[]
[strain_yy]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[]
[strain_zz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_zz
index_i = 2
index_j = 2
execute_on = timestep_end
[]
[strain_xy]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[]
[strain_xz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xz
index_i = 0
index_j = 2
execute_on = timestep_end
[]
[strain_yz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_yz
index_i = 1
index_j = 2
execute_on = timestep_end
[]
[]
[Kernels]
[sdx]
type = TotalLagrangianStressDivergence
variable = disp_x
component = 0
[]
[sdy]
type = TotalLagrangianStressDivergence
variable = disp_y
component = 1
[]
[sdz]
type = TotalLagrangianStressDivergence
variable = disp_z
component = 2
[]
[]
[Functions]
[pullx]
type = ParsedFunction
expression = 't'
[]
[]
[BCs]
[leftx]
type = DirichletBC
preset = true
boundary = left
variable = disp_x
value = 0.0
[]
[lefty]
type = DirichletBC
preset = true
boundary = bottom
variable = disp_y
value = 0.0
[]
[leftz]
type = DirichletBC
preset = true
boundary = back
variable = disp_z
value = 0.0
[]
[pull_x]
type = FunctionDirichletBC
boundary = right
variable = disp_x
function = pullx
[]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 100.0
epsilon0 = 0.1
exponent = 2.0
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[elastic_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 100000.0
poissons_ratio = 0.3
[]
[compute_stress]
type = ComputeLagrangianWrappedStress
[]
[compute_stress_base]
type = ComputeMultiPlasticityStress
plastic_models = j2
ep_plastic_tolerance = 1E-9
[]
[compute_strain]
type = ComputeLagrangianStrain
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Postprocessors]
[./strain]
type = ElementAverageValue
variable = strain_xx
[]
[./stress]
type = ElementAverageValue
variable = stress_xx
[]
[]
[Executioner]
type = Transient
solve_type = 'newton'
line_search = none
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
l_max_its = 2
l_tol = 1e-14
nl_max_its = 15
nl_rel_tol = 1e-8
nl_abs_tol = 1e-10
start_time = 0.0
dt = 0.001
dtmin = 0.001
end_time = 0.05
[]
[Outputs]
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform1.i)
# apply uniform stretch in x, y and z directions.
# trial_stress(0, 0) = -2
# trial_stress(1, 1) = 6
# trial_stress(2, 2) = 10
# With tensile_strength = 2, the algorithm should return to trace(stress) = 2, or
# stress(0, 0) = -6
# stress(1, 1) = 2
# stress(2, 2) = 6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard2.i)
# Checking solution of hardening
# A single element is stretched by 1E-6 in z direction.
#
# Young's modulus = 20 MPa. Tensile strength = 10 Exp(-1E6*q) Pa
#
# The trial stress is
# trial_stress_zz = Youngs Modulus*Strain = 2E7*1E-6 = 20 Pa
#
# Therefore the equations we have to solve are
# 0 = f = stress_zz - 10 Exp(-1E6*q)
# 0 = epp = ga - (20 - stress_zz)/2E7
# 0 = intnl = q - ga
#
# The result is
# q = 0.76803905E-6
# stress_zz = 4.6392191 Pa
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 0
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 0
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 1E-6*t
[]
[]
[AuxVariables]
[wpt_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wpt_internal]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wpt_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[wpt_internal]
type = PointValue
point = '0 0 0'
variable = wpt_internal
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 0
rate = 1E6
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-11
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-11
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/multi/two_surface02.i)
# Plasticit models:
# SimpleTester with a = 0 and b = 1 and strength = 1
# SimpleTester with a = 1 and b = 1 and strength = 2
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.5E-6m in the y z directions.
# trial stress_zz = 1.5 and stress_yy = 1.5
#
# Then both SimpleTesters should activate, and the final stress
# should have have stress_zz = 1 = stress_yy (ie, the "corner" point)
# the plastic strain for SimpleTester1 should be zero
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[]
[UserObjects]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 2
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = two_surface02
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface01.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 0E-6m in y direction and 1.5E-6 in z direction.
# trial stress_yy = 0 and stress_zz = 1.5
#
# Then SimpleTester0 should activate and the algorithm will return to
# stress_yy = 0, stress_zz = 1
# internal0 should be 0.5, and others zero
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface01
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial2_planar.i)
# same as uni_axial2 but with planar mohr-coulomb
[Mesh]
type = FileMesh
file = quarter_hole.e
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'zmin'
value = '0'
[../]
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'xmin'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'ymin'
value = '0'
[../]
[./ymax_disp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'ymax'
function = '-1E-4*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0.005 0.02 0.002'
variable = yield_fcn
[../]
[]
[UserObjects]
[./coh]
type = SolidMechanicsHardeningConstant
value = 1E7
[../]
[./fric]
type = SolidMechanicsHardeningConstant
value = 2
convert_to_radians = true
[../]
[./dil]
type = SolidMechanicsHardeningConstant
value = 2
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = coh
friction_angle = fric
dilation_angle = dil
yield_function_tolerance = 1.0 # THIS IS HIGHER THAN THE SMOOTH CASE TO AVOID PRECISION-LOSS PROBLEMS!
shift = 1.0
internal_constraint_tolerance = 1E-9
use_custom_returnMap = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
C_ijkl = '0 5E9' # young = 10Gpa, poisson = 0.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 1
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-9
plastic_models = mc
max_NR_iterations = 100
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
debug_fspb = crash
[../]
[]
# Preconditioning and Executioner options kindly provided by Andrea
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 0.5
dt = 0.1
solve_type = NEWTON
type = Transient
[]
[Outputs]
file_base = uni_axial2_planar
[./exodus]
type = Exodus
hide = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz yield_fcn s_xx s_xy s_xz s_yy s_yz s_zz f'
[../]
[./csv]
type = CSV
time_step_interval = 1
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform5.i)
# checking for small deformation
# A single element is incrementally stretched in the in the z and x directions
# This causes the return direction to be along the hypersurface sigma_I = sigma_II,
# and the resulting stresses are checked to lie on the expected yield surface
#
# tensile_strength is set to 1Pa, tip_smoother = 0.5, edge_smoother = 25degrees
# Then A + B + C = 0.609965
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.25E-6*x*t*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.25E-6*z*t*t'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.5
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform5
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/finite_strain_elastic/finite_strain_fake_plastic.i)
[Mesh]
type = GeneratedMesh
dim = 3
elem_type = HEX8
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Functions]
[./tdisp]
type = ParsedFunction
expression = '0.01 * t'
[../]
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
strain = FINITE
add_variables = true
[../]
[]
[BCs]
[./symmy]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0
[../]
[./symmx]
type = DirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./symmz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0
[../]
[./tdisp]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = tdisp
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '1.684e5 1.214e5 1.214e5 1.684e5 1.214e5 1.684e5 0.754e5 0.754e5 0.754e5'
fill_method = symmetric9
[../]
[./stress]
# note there are no plastic_models so this is actually elasticity
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-5
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
dt = 0.05
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
petsc_options_iname = -pc_hypre_type
petsc_options_value = boomeramg
nl_abs_tol = 1e-10
nl_rel_step_tol = 1e-10
dtmax = 10.0
nl_rel_tol = 1e-10
end_time = 1
dtmin = 0.05
num_steps = 10
nl_abs_step_tol = 1e-10
[]
[Outputs]
exodus = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto22.i)
# MeanCapTC with tensile failure
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 10
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -10
value_residual = -1
internal_limit = 9
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
use_custom_cto = true
use_custom_returnMap = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = cap
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/tutorials/basics/part_3_1.i)
#Tensor Mechanics tutorial: the basics
#Step 3, part 1
#3D simulation of uniaxial tension with J2 plasticity
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
[file_mesh]
type = FileMeshGenerator
file = necking_quad4.e
[]
[extrude]
type = MeshExtruderGenerator
extrusion_vector = '0 0 0.5'
num_layers = 2
bottom_sideset = 'back'
top_sideset = 'front'
input = file_mesh
[]
uniform_refine = 0
second_order = true
[]
[Physics/SolidMechanics/QuasiStatic]
[./block1]
strain = FINITE
add_variables = true
generate_output = 'stress_yy strain_yy'
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 2.1e5
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1e-9
plastic_models = J2
[../]
[]
[UserObjects]
[./hardening]
type = SolidMechanicsHardeningCubic
value_0 = 2.4e2
value_residual = 3.0e2
internal_0 = 0
internal_limit = 0.005
[../]
[./J2]
type = SolidMechanicsPlasticJ2
yield_strength = hardening
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = disp_x #change the variable to reflect the new displacement names
boundary = 1
value = 0.0
[../]
[./back]
type = DirichletBC
variable = disp_z #change the variable to reflect the new displacement names
boundary = back
value = 0.0
[../]
[./bottom]
type = DirichletBC
variable = disp_y #change the variable to reflect the new displacement names
boundary = 3
value = 0.0
[../]
[./top]
type = FunctionDirichletBC
variable = disp_y #change the variable to reflect the new displacement names
boundary = 4
function = '0.0007*t'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
dt = 0.25
end_time = 16
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-pc_type -sub_pc_type -pc_asm_overlap -ksp_gmres_restart'
petsc_options_value = 'asm lu 1 101'
[]
[Postprocessors]
[./ave_stress_bottom]
type = SideAverageValue
variable = stress_yy
boundary = 3
[../]
[./ave_strain_bottom]
type = SideAverageValue
variable = strain_yy
boundary = 3
[../]
[]
[Outputs]
exodus = true
perf_graph = true
csv = true
print_linear_residuals = false
[]
(modules/solid_mechanics/test/tests/multi/three_surface05.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1E-6m in y direction and 1.1E-6 in z direction.
# trial stress_yy = 1 and stress_zz = 1.1
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1
# However, this will mean internal0 < 0, so SimpleTester0 will be deactivated and
# then the algorithm will return to
# stress_yy=0.7, stress_zz=0.8
# internal0 should be 0.0, and internal2 should be 0.3
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface05
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/planar4.i)
# A single unit element is stretched by 1E-6m in z direction.
# with Lame lambda = 0.6E6 and Lame mu (shear) = 1E6
# stress_zz = 2.6 Pa
# stress_xx = 0.6 Pa
# stress_yy = 0.6 Pa
# tensile_strength is set to 0.5Pa
#
# The return should be to a plane (but the algorithm
# will try tip-return first), with
# stress_zz = 0.5
# plastic multiplier = 2.1/2.6 E-6
# stress_xx = 0.6 - (2.1/2.6*0.6) = 0.115
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.0E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningConstant
value = 0.5
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.6E6 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = tens
debug_fspb = none
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar4
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface14.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# Then all three will be active, but there is linear-dependence.
# SimpleTester1 will turn off, since it is closest,
# and the algorithm will return to stress_zz=1, stress_yy=2, but
# then SimpleTester1 will be positive, so it will be turned back
# on, and then SimpleTester0 or SimpleTester2 will be turned off
# (a random choice will be made).
# If SimpleTester2 is turned
# off then algorithm returns to stress_zz=1=stress_yy, but then
# SimpleTester2 violates Kuhn-Tucker (f<0 and pm>0), so the algorithm
# will restart, and return to stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
# If SimpleTester0 is turned off then the algorithm will return to
# stress_zz=2, stress_yy=1, where f0>0. Once again, a random choice
# of turning off SimpleTester1 or SimpleTester2 can be made. Hence,
# oscillations can occur. If too many oscillations occur then the algorithm
# will fail
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface14
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/static_deformations/cosserat_glide_fake_plastic.i)
# Example taken from Appendix A of
# S Forest "Mechanics of Cosserat media An introduction". Available from http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.154.4476&rep=rep1&type=pdf
#
# This example uses plasticity, but with inifinitely large yield strength, so it is really elasticity
#
# Analytically, the displacements are
# wc_z = B sinh(w_e y)
# disp_x = (2 mu_c B / w_e / (mu + mu_c)) (1 - cosh(w_e y))
# with w_e^2 = 2 mu mu_c / be / (mu + mu_c)
# and B = arbitrary integration constant
#
# Also, the only nonzero stresses are
# m_zy = 2 B be w_e cosh(w_e y)
# si_yx = -4 mu mu_c/(mu + mu_c) B sinh(w_e y)
#
# MOOSE gives these stress components correctly.
# However, it also gives a seemingly non-zero si_xy
# component. Upon increasing the resolution of the
# mesh (ny=10000, for example), the stress components
# are seen to limit correctly to the above forumlae
#
# I use mu = 2, mu_c = 3, be = 0.6, so w_e = 2
# Also i use B = 1, so at y = 1
# wc_z = 3.626860407847
# disp_x = -1.65731741465
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 100
ymax = 1
nz = 1
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[./wc_z]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./z_couple]
type = StressDivergenceTensors
variable = wc_z
displacements = 'wc_x wc_y wc_z'
component = 2
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[./z_moment]
type = MomentBalancing
variable = wc_z
component = 2
[../]
[]
[BCs]
# zmin is called back
# zmax is called front
# ymin is called bottom
# ymax is called top
# xmin is called left
# xmax is called right
[./disp_x_zero_at_y_zero]
type = DirichletBC
variable = disp_x
boundary = bottom
value = 0
[../]
[./disp_x_fixed_at_y_max]
type = DirichletBC
variable = disp_x
boundary = top
value = -1.65731741465
[../]
[./no_dispy]
type = DirichletBC
variable = disp_y
boundary = 'back front bottom top left right'
value = 0
[../]
[./no_dispz]
type = DirichletBC
variable = disp_z
boundary = 'back front bottom top left right'
value = 0
[../]
[./no_wc_x]
type = DirichletBC
variable = wc_x
boundary = 'back front bottom top left right'
value = 0
[../]
[./no_wc_y]
type = DirichletBC
variable = wc_y
boundary = 'back front bottom top left right'
value = 0
[../]
[./wc_z_zero_at_y_zero]
type = DirichletBC
variable = wc_z
boundary = bottom
value = 0
[../]
[./wc_z_fixed_at_y_max]
type = DirichletBC
variable = wc_z
boundary = top
value = 3.626860407847
[../]
[]
[AuxVariables]
[./stress_xx]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_xy]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_xz]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_yx]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_yy]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_yz]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_zx]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_zy]
family = MONOMIAL
order = CONSTANT
[../]
[./stress_zz]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_xx]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_xy]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_xz]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_yx]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_yy]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_yz]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_zx]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_zy]
family = MONOMIAL
order = CONSTANT
[../]
[./couple_stress_zz]
family = MONOMIAL
order = CONSTANT
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yx
index_i = 1
index_j = 0
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zx
index_i = 2
index_j = 0
[../]
[./stress_zy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zy
index_i = 2
index_j = 1
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./couple_stress_xx]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_xx
index_i = 0
index_j = 0
[../]
[./couple_stress_xy]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_xy
index_i = 0
index_j = 1
[../]
[./couple_stress_xz]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_xz
index_i = 0
index_j = 2
[../]
[./couple_stress_yx]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_yx
index_i = 1
index_j = 0
[../]
[./couple_stress_yy]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_yy
index_i = 1
index_j = 1
[../]
[./couple_stress_yz]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_yz
index_i = 1
index_j = 2
[../]
[./couple_stress_zx]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_zx
index_i = 2
index_j = 0
[../]
[./couple_stress_zy]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_zy
index_i = 2
index_j = 1
[../]
[./couple_stress_zz]
type = RankTwoAux
rank_two_tensor = couple_stress
variable = couple_stress_zz
index_i = 2
index_j = 2
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeCosseratElasticityTensor
B_ijkl = '1.1 0.6 0.6' # In Forest notation this is alpha=1.1 (this is unimportant), beta=gamma=0.6.
fill_method_bending = 'general_isotropic'
E_ijkl = '1 2 3' # In Forest notation this is lambda=1 (this is unimportant), mu=2, mu_c=3
fill_method = 'general_isotropic'
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
[../]
[./stress_fake_plasticity]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-12
[../]
[]
[VectorPostprocessors]
[./soln]
type = LineValueSampler
warn_discontinuous_face_values = false
sort_by = y
variable = 'disp_x wc_z stress_yx couple_stress_zy'
start_point = '0 0 0'
end_point = '0 1 0'
num_points = 11
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -sub_pc_type -snes_atol -snes_rtol -snes_max_it -ksp_atol -ksp_rtol'
petsc_options_value = 'gmres asm lu 1E-10 1E-14 10 1E-15 1E-10'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
num_steps = 1
[]
[Outputs]
execute_on = 'timestep_end'
file_base = cosserat_glide_fake_plastic_out
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard1.i)
# apply uniform stretches in x, y and z directions.
# let mc_cohesion = 10, mc_cohesion_residual = 2, mc_cohesion_rate =
# With cohesion = C, friction_angle = 60deg, tip_smoother = 4, the
# algorithm should return to
# sigma_m = C*Cos(60)/Sin(60)
# This allows checking of the relationship for C
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 2
rate = 1E4
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1E-5
use_custom_returnMap = true
shift = 1E-12
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = planar_hard1
exodus = false
[./csv]
type = CSV
execute_on = timestep_end
[../]
[]
(modules/solid_mechanics/test/tests/multi/special_rock1.i)
# Plasticity models:
# Mohr-Coulomb with cohesion = 40MPa, friction angle = 35deg, dilation angle = 5deg
# Tensile with strength = 1MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
#
# NOTE: The yield function tolerances here are set at 100-times what i would usually use
# This is because otherwise the test fails on the 'pearcey' architecture.
# This is because identical stress tensors yield slightly different eigenvalues
# (and hence return-map residuals) on 'pearcey' than elsewhere, which results in
# a different number of NR iterations are needed to return to the yield surface.
# This is presumably because of compiler internals, or the BLAS routines being
# optimised differently or something similar.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[GlobalParams]
volumetric_locking_correction=true
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console csv'
[../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console csv'
[../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console csv'
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console csv'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4E7
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
use_custom_returnMap = false
yield_function_tolerance = 1.0E+2 # Note larger value
shift = 1.0E+2 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[./mc_smooth]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4E6
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E6
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E+2 # Note larger value
shift = 1.0E+2 # Note larger value
internal_constraint_tolerance = 1.0E-7
use_custom_returnMap = false
use_custom_cto = false
[../]
[./tensile_smooth]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
tensile_tip_smoother = 1E5
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.0E9 1.3E9'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5 # Note larger value, to match the larger yield_function_tolerances
plastic_models = 'tensile mc'
max_NR_iterations = 5
specialIC = 'rock'
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1 1'
debug_jac_at_intnl = '1 1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = special_rock1
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto03.i)
# checking jacobian for linear plasticity (weak_plane_tensile)
# with hardening
[Mesh]
type = GeneratedMesh
dim = 3
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[ICs]
[./disp_x]
type = RandomIC
variable = disp_x
min = -0.1
max = 0.1
[../]
[./disp_y]
type = RandomIC
variable = disp_y
min = -0.1
max = 0.1
[../]
[./disp_z]
type = RandomIC
variable = disp_z
min = -0.1
max = 0.1
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningCubic
value_0 = 0
value_residual = 1
internal_limit = 1
[../]
[./wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1 2'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '1 2 3 2 -4 -5 3 -5 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
tangent_operator = linear
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/tensile/planar6.i)
# A single unit element is stretched by (0.5, 0.4, 0.3)E-6m
# with Lame lambda = 0.6E6 and Lame mu (shear) = 1E6
# stress_xx = 1.72 Pa
# stress_yy = 1.52 Pa
# stress_zz = 1.32 Pa
# tensile_strength is set to 0.5Pa with cubic hardening to 1Pa at intnl=1E-6
#
# The return should be to the tip with, according to mathematica
# sum(plastic_multiplier) = 5.67923989317E-7
# stress_xx = stress_yy = stress_zz = 0.80062961323
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.4E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.3E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningCubic
value_0 = 0.5
value_residual = 1
internal_limit = 1E-6
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.6E6 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = tens
debug_fspb = none
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar6
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/large_deform_harden3.i)
# apply a number of "random" configurations and
# check that the algorithm returns to the yield surface
#
# must be careful here - we cannot put in arbitrary values of C_ijkl, otherwise the condition
# df/dsigma * C * flow_dirn < 0 for some stresses
# The important features that must be obeyed are:
# 0 = C_0222 = C_1222 (holds for transversely isotropic, for instance)
# C_0212 < C_0202 = C_1212 (holds for transversely isotropic)
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
# the following are "random" deformations
# each is O(1E-5) to keep deformations small
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '(sin(0.1*t)+x)/1E1'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '(cos(t)+x*y)/1E1'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 'sin(0.4321*t)*x*y*z/1E1'
[]
[]
[AuxVariables]
[wps_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wps_internal_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wps_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[int]
type = PointValue
point = '0 0 0'
variable = wps_internal
outputs = 'console'
[]
[yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[]
[should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[]
[]
[Functions]
[should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningExponential
value_0 = 1E3
value_residual = 0
rate = 0.01
[]
[tanphi]
type = SolidMechanicsHardeningExponential
value_0 = 1
value_residual = 0.577350269
rate = 0.01
[]
[tanpsi]
type = SolidMechanicsHardeningExponential
value_0 = 0.08748866
value_residual = 0.03492077
rate = 0.01
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 100
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
# the following is transversely isotropic, i think.
fill_method = symmetric9
C_ijkl = '3E9 1E9 3E9 3E9 3E9 6E9 1E9 1E9 9E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
max_NR_iterations = 1000
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E4
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/tensile/small_deform3.i)
# checking for small deformation
# A single element is stretched by "ep" in the z and x directions
# This causes the return direction to be along the hypersurface sigma_I = sigma_II
# tensile_strength is set to 1Pa, tip_smoother = 0, edge_smoother = 25degrees
# Then A + B + C = 0.609965
#
# The trial stress is (la, 0, la), with mean stress 2la/3, and bar(sigma)=sqrt(secondInvariant)=la/sqrt(3)
# If this sits on the yield surface then
# 2la/3 + la*K/sqrt(3) - 1 = 0
# So la = 0.9815. Therefore, with young's modulus = 2MPa, we need "ep" = 0.9815/4. I set
# "ep" = 0.25 and observe a tiny amount of yielding
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.25E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.25E-6*z'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.0
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform4.i)
# checking for small deformation
# A single element is stretched by 0.75E-6m in the z and x directions
# This causes the return direction to be along the hypersurface sigma_I = sigma_II
# tensile_strength is set to 1Pa, tip_smoother = 0, edge_smoother = 25degrees
# Then A + B + C = 0.609965
#
# The final stress should have meanstress = 0.680118 and bar(sigma) = 0.52443, and sigma_zz = sigma_xx = 0.982896
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.75E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.75E-6*z'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.0
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform4
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface06.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.1E-6m in y direction and 1.0E-6 in z direction.
# trial stress_yy = 1.1 and stress_zz = 1.0
#
# Then SimpleTester1 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=1.0, stress_zz=0.5
# However, this will mean internal1 < 0, so SimpleTester1 will be deactivated and
# then the algorithm will return to
# stress_yy=0.8, stress_zz=0.7
# internal1 should be 0.0, and internal2 should be 0.3
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface06
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/special_joint1.i)
# Plasticity models:
# WeakPlaneTensile with strength = 1000Pa
# WeakPlaneShear with cohesion = 0.1MPa and friction angle = 25
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[GlobalParams]
volumetric_locking_correction=true
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console csv'
[../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console csv'
[../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console csv'
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console csv'
[../]
[]
[UserObjects]
[./wpt_str]
type = SolidMechanicsHardeningConstant
value = 1000
[../]
[./wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = wpt_str
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./wps_c]
type = SolidMechanicsHardeningConstant
value = 1.0E5
[../]
[./wps_tan_phi]
type = SolidMechanicsHardeningConstant
value = 0.466
[../]
[./wps_tan_psi]
type = SolidMechanicsHardeningConstant
value = 0.087
[../]
[./wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = wps_c
tan_friction_angle = wps_tan_phi
tan_dilation_angle = wps_tan_psi
smoother = 0
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.0E9 1.3E9'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'wpt wps'
max_NR_iterations = 5
specialIC = 'joint'
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1 1'
debug_jac_at_intnl = '1 1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = special_joint1
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial3_planar.i)
# same as uni_axial2 but with planar mohr-coulomb
[Mesh]
type = FileMesh
file = quarter_hole.e
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'zmin'
value = '0'
[../]
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'xmin'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'ymin'
value = '0'
[../]
[./ymax_disp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'ymax'
function = '-1E-4*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0.005 0.02 0.002'
variable = yield_fcn
[../]
[]
[UserObjects]
[./coh]
type = SolidMechanicsHardeningConstant
value = 1E7
[../]
[./fric]
type = SolidMechanicsHardeningConstant
value = 40
convert_to_radians = true
[../]
[./dil]
type = SolidMechanicsHardeningConstant
value = 40
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = coh
friction_angle = fric
dilation_angle = dil
yield_function_tolerance = 1.0 # THIS IS HIGHER THAN THE SMOOTH CASE TO AVOID PRECISION-LOSS PROBLEMS!
shift = 1.0
use_custom_returnMap = false
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
C_ijkl = '0 5E9' # young = 10Gpa, poisson = 0.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 1
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-9
plastic_models = mc
max_NR_iterations = 100
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
debug_fspb = crash
[../]
[]
# Preconditioning and Executioner options kindly provided by Andrea
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 1.05
dt = 0.1
solve_type = NEWTON
type = Transient
[]
[Outputs]
file_base = uni_axial3_planar
[./exodus]
type = Exodus
hide = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz yield_fcn s_xx s_xy s_xz s_yy s_yz s_zz f'
[../]
[./csv]
type = CSV
time_step_interval = 1
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface02.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 0E-6m in y direction and 2.0E-6 in z direction.
# trial stress_yy = 0 and stress_zz = 2.0
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1, but this will require a negative plasticity
# multiplier for SimpleTester2, so it will be deactivated, and the algorithm will return to
# stress_yy = 0, stress_zz = 1
# internal0 should be 1.0, and others zero
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface02
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform_harden4.i)
# apply repeated stretches to observe cohesion hardening, with cubic
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = '0'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = '2*t'
[]
[]
[AuxVariables]
[wps_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wps_internal_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wps_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[int]
type = PointValue
point = '0 0 0'
variable = wps_internal
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningCubic
value_0 = 1E3
value_residual = 2E3
internal_limit = 0.00007
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.01745506
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 500
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/random.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0.1E3
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 1000
ep_plastic_tolerance = 1E-6
min_stepsize = 1E-3
plastic_models = mc
debug_fspb = crash
deactivation_scheme = safe
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform6.i)
# apply repeated stretches in z direction, and smaller stretches in the x and y directions
# so that sigma_II = sigma_III,
# which means that lode angle = -30deg.
# The allows yield surface in meridional plane to be mapped out
# Using cap smoothing
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.9E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.9E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 50
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.8726646 # 50deg
rate = 3000.0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
tip_scheme = cap
mc_tip_smoother = 0
cap_start = 3
cap_rate = 0.8
mc_edge_smoother = 20
yield_function_tolerance = 1E-8
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 30
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform6
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform3_outer_tip.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = outer_tip
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_outer_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/large_deform3.i)
# apply a number of "random" configurations and
# check that the algorithm returns to the yield surface
#
# must be careful here - we cannot put in arbitrary values of C_ijkl, otherwise the condition
# df/dsigma * C * flow_dirn < 0 for some stresses
# The important features that must be obeyed are:
# 0 = C_0222 = C_1222 (holds for transversely isotropic, for instance)
# C_0212 < C_0202 = C_1212 (holds for transversely isotropic)
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
# the following are "random" deformations
# each is O(1E-1) to provide large deformations
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '(sin(0.1*t)+x)/1E1'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '(cos(t)+x*y)/1E1'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 'sin(0.4321*t)*x*y*z/1E1'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[]
[should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[]
[]
[Functions]
[should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.577350269
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.08748866
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 100
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
# the following is transversely isotropic, i think.
fill_method = symmetric9
C_ijkl = '3E9 1E9 3E9 3E9 3E9 6E9 1E9 1E9 9E9'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
max_NR_iterations = 100
ep_plastic_tolerance = 1E-3
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1E4
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/except1.i)
# checking for small deformation
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 1E-6
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 1E-6
[]
[topz]
type = DirichletBC
variable = z_disp
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialRealAux
property = weak_plane_tensile_yield_function
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = -1.0
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform1.i)
# deformations are applied so that the trial stress is
# shear = 10, normalstress = 2
#
# Cohesion is chosen to be 1, and friction angle = 26.565, so tan(friction_angle) = 1/2
# This means that (shear, normalstress) = (0, 2) is the apex
# of the shear envelope
#
# Poisson's ratio is chosen to be zero, and Lame mu = 1E6,
# so the return must solve
# f = 0
# shear = shear_trial - (1/2)*mu*ga = 10 - 0.5E6*ga
# normalstress = normalstress - mu*tan(dilation)*ga
#
# Finally, tan(dilation) = 2/18 is chosen.
#
# Then the returned value should have
# shear = 1, normalstress = 0
#
# Here shear = sqrt(s_yz^2 + s_xz^2)
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 8E-6
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 6E-6
[]
[topz]
type = DirichletBC
variable = z_disp
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.1111077
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 0
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-6
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
debug_fspb = crash
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_tip.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = inner_tip
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_inner_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform5.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
# Use 'cap' smoothing
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.9E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 50
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.8726646 # 50deg
rate = 3000.0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
tip_scheme = cap
mc_tip_smoother = 0
cap_start = 3
cap_rate = 0.8
mc_edge_smoother = 20
yield_function_tolerance = 1E-8
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 150
dt = 5
type = Transient
[]
[Outputs]
file_base = small_deform5
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/planar5.i)
# A single unit element is stretched by 1E-6m in z direction.
# with Lame lambda = 0.6E6 and Lame mu (shear) = 1E6
# stress_zz = 2.6 Pa
# stress_xx = 0.6 Pa
# stress_yy = 0.6 Pa
# tensile_strength is set to 0.5Pa with cubic hardening to 1Pa at intnl=1E-6
#
# The return should be to a plane (but the algorithm
# will try tip-return first), with, according to mathematica
# plastic_multiplier = 6.655327991E-7
# stress_zz = 0.869613817289
# stress_xx = 0.20068032054
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.0E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningCubic
value_0 = 0.5
value_residual = 1
internal_limit = 1E-6
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.6E6 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = tens
debug_fspb = none
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar5
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/random_hyperbolic.i)
# drucker-prager hyperbolic.
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 100
ny = 125
nz = 1
xmin = 0
xmax = 100
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 0.1E3
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
use_custom_returnMap = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./dp]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 1000
ep_plastic_tolerance = 1E-6
min_stepsize = 1E-3
plastic_models = dp
debug_fspb = crash
deactivation_scheme = safe
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random_hyperbolic
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/lagrangian/cartesian/updated/cross_material/correctness/plastic_j2.i)
# Simple 3D test
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
large_kinematics = false
[]
[Variables]
[disp_x]
[]
[disp_y]
[]
[disp_z]
[]
[]
[Mesh]
[msh]
type = GeneratedMeshGenerator
dim = 3
nx = 2
ny = 1
nz = 1
[]
[]
[AuxVariables]
[strain_xx]
order = CONSTANT
family = MONOMIAL
[]
[strain_yy]
order = CONSTANT
family = MONOMIAL
[]
[strain_zz]
order = CONSTANT
family = MONOMIAL
[]
[strain_xy]
order = CONSTANT
family = MONOMIAL
[]
[strain_xz]
order = CONSTANT
family = MONOMIAL
[]
[strain_yz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xx]
order = CONSTANT
family = MONOMIAL
[]
[stress_yy]
order = CONSTANT
family = MONOMIAL
[]
[stress_zz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xy]
order = CONSTANT
family = MONOMIAL
[]
[stress_yz]
order = CONSTANT
family = MONOMIAL
[]
[stress_xz]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[stress_xx]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[]
[stress_yy]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[]
[stress_zz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_zz
index_i = 2
index_j = 2
execute_on = timestep_end
[]
[stress_xy]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[]
[stress_xz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_xz
index_i = 0
index_j = 2
execute_on = timestep_end
[]
[stress_yz]
type = RankTwoAux
rank_two_tensor = cauchy_stress
variable = stress_yz
index_i = 1
index_j = 2
execute_on = timestep_end
[]
[strain_xx]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[]
[strain_yy]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[]
[strain_zz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_zz
index_i = 2
index_j = 2
execute_on = timestep_end
[]
[strain_xy]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[]
[strain_xz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_xz
index_i = 0
index_j = 2
execute_on = timestep_end
[]
[strain_yz]
type = RankTwoAux
rank_two_tensor = mechanical_strain
variable = strain_yz
index_i = 1
index_j = 2
execute_on = timestep_end
[]
[]
[Kernels]
[sdx]
type = UpdatedLagrangianStressDivergence
variable = disp_x
component = 0
use_displaced_mesh = false
[]
[sdy]
type = UpdatedLagrangianStressDivergence
variable = disp_y
component = 1
use_displaced_mesh = false
[]
[sdz]
type = UpdatedLagrangianStressDivergence
variable = disp_z
component = 2
use_displaced_mesh = false
[]
[]
[Functions]
[pullx]
type = ParsedFunction
expression = 't'
[]
[]
[BCs]
[leftx]
type = DirichletBC
preset = true
boundary = left
variable = disp_x
value = 0.0
[]
[lefty]
type = DirichletBC
preset = true
boundary = bottom
variable = disp_y
value = 0.0
[]
[leftz]
type = DirichletBC
preset = true
boundary = back
variable = disp_z
value = 0.0
[]
[pull_x]
type = FunctionDirichletBC
boundary = right
variable = disp_x
function = pullx
[]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 100.0
epsilon0 = 0.1
exponent = 2.0
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[elastic_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 100000.0
poissons_ratio = 0.3
[]
[compute_stress]
type = ComputeLagrangianWrappedStress
[]
[compute_stress_base]
type = ComputeMultiPlasticityStress
plastic_models = j2
ep_plastic_tolerance = 1E-9
[]
[compute_strain]
type = ComputeLagrangianStrain
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Postprocessors]
[./strain]
type = ElementAverageValue
variable = strain_xx
[]
[./stress]
type = ElementAverageValue
variable = stress_xx
[]
[]
[Executioner]
type = Transient
solve_type = 'newton'
line_search = none
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
l_max_its = 2
l_tol = 1e-14
nl_max_its = 15
nl_rel_tol = 1e-8
nl_abs_tol = 1e-10
start_time = 0.0
dt = 0.001
dtmin = 0.001
end_time = 0.05
[]
[Outputs]
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard3.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
#
# friction_angle = 50deg, friction_angle_residual=51deg, friction_angle_rate = 1E7 (huge)
# cohesion = 10, cohesion_residual = 9.9, cohesion_rate = 1E7 (huge)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.25E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 9.9
rate = 1E7
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 0.8726646 # 50deg
value_residual = 0.8901179 # 51deg
rate = 1E7
[../]
[./mc_psi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.8726646 # 50deg
rate = 3000
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 20
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 1 2 1 11 -3 2 -3 8'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 30
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform_hard3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/large_deform2.i)
# large strain with weak-plane normal rotating with mesh
# First rotate mesh 45deg about x axis
# Then apply stretch in the y=z direction.
# This should create a pure tensile load (no shear), which
# should return to the yield surface.
#
# Since cohesion=1E6 and tan(friction_angle)=1, and
# wps_smoother = 0.5E6, the apex of the weak-plane cone is
# at normal_stress = 0.5E6. So, the result should be
# s_yy = s_yz = s_zz = 0.25E6
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xx stress_yy stress_yz stress_zz'
[]
[BCs]
# rotate:
# ynew = c*y + s*z. znew = -s*y + c*z
[bottomx]
type = FunctionDirichletBC
variable = disp_x
boundary = back
function = '0'
[]
[bottomy]
type = FunctionDirichletBC
variable = disp_y
boundary = back
function = '0.70710678*y+0.70710678*z-y'
[]
[bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = back
function = '-0.70710678*y+0.70710678*z-z'
[]
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '0.70710678*y+0.70710678*z-y+if(t>0,1,0)'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '-0.70710678*y+0.70710678*z-z+if(t>0,1,0)'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[]
[s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E6
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.111107723
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 0.5E6
yield_function_tolerance = 1E-9
internal_constraint_tolerance = 1E-9
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-8
debug_fspb = crash
[]
[]
[Executioner]
start_time = -1
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
exodus = true
[]
(modules/solid_mechanics/test/tests/tensile/planar8.i)
# A single unit element is stretched by (0.5, 0.4, 0.3)E-6m
# with Lame lambda = 0.6E6 and Lame mu (shear) = 1E6
# stress_xx = 1.72 Pa
# stress_yy = 1.52 Pa
# stress_zz = 1.32 Pa
# tensile_strength is set to 1.3Pa hardening to 2Pa over intnl=1E-6
#
# The return should be to the edge (the algorithm will first try the tip) with
# according to mathematica
# internal = 1.67234152669E-7
# stress_xx = stress_yy = 1.3522482794
# stress_zz = 1.2195929084
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.4E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.3E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningCubic
value_0 = 1.3
value_residual = 2
internal_limit = 1E-6
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.6E6 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = tens
debug_fspb = none
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar8
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/notched_plastic_block/biaxial_planar.i)
# Uses non-smoothed Mohr-Coulomb (via ComputeMultiPlasticityStress and SolidMechanicsPlasticMohrCoulombMulti) to simulate the following problem.
# A cubical block is notched around its equator.
# All of its outer surfaces have roller BCs, but the notched region is free to move as needed
# The block is initialised with a high hydrostatic tensile stress
# Without the notch, the BCs do not allow contraction of the block, and this stress configuration is admissible
# With the notch, however, the interior parts of the block are free to move in order to relieve stress, and this causes plastic failure
# The top surface is then pulled upwards (the bottom is fixed because of the roller BCs)
# This causes more failure
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 9
ny = 9
nz = 9
xmin = 0
xmax = 0.1
ymin = 0
ymax = 0.1
zmin = 0
zmax = 0.1
[]
[block_to_remove_xmin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.01 0.11 0.055'
location = INSIDE
block_id = 1
input = generated_mesh
[]
[block_to_remove_xmax]
type = SubdomainBoundingBoxGenerator
bottom_left = '0.09 -0.01 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmin
[]
[block_to_remove_ymin]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 -0.01 0.045'
top_right = '0.11 0.01 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_xmax
[]
[block_to_remove_ymax]
type = SubdomainBoundingBoxGenerator
bottom_left = '-0.01 0.09 0.045'
top_right = '0.11 0.11 0.055'
location = INSIDE
block_id = 1
input = block_to_remove_ymin
[]
[remove_block]
type = BlockDeletionGenerator
block = 1
input = block_to_remove_ymax
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[all]
add_variables = true
incremental = true
generate_output = 'max_principal_stress mid_principal_stress min_principal_stress stress_zz'
eigenstrain_names = ini_stress
[]
[]
[Postprocessors]
[uz]
type = PointValue
point = '0 0 0.1'
use_displaced_mesh = false
variable = disp_z
[]
[s_zz]
type = ElementAverageValue
use_displaced_mesh = false
variable = stress_zz
[]
[num_res]
type = NumResidualEvaluations
[]
[nr_its]
type = ElementAverageValue
variable = num_iters
[]
[max_nr_its]
type = ElementExtremeValue
variable = num_iters
[]
[runtime]
type = PerfGraphData
data_type = TOTAL
section_name = 'Root'
[]
[]
[BCs]
# back=zmin, front=zmax, bottom=ymin, top=ymax, left=xmin, right=xmax
[xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[]
[xmax_xzero]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[]
[ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[]
[ymax_yzero]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[]
[zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = back
value = '0'
[]
[zmax_disp]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '1E-6*max(t,0)'
[]
[]
[AuxVariables]
[mc_int]
order = CONSTANT
family = MONOMIAL
[]
[plastic_strain]
order = CONSTANT
family = MONOMIAL
[]
[num_iters]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[]
[plastic_strain_aux]
type = MaterialRankTwoTensorAux
i = 2
j = 2
property = plastic_strain
variable = plastic_strain
[]
[num_iters_auxk] # cannot use plastic_NR_iterations directly as this is zero, since no NR iterations are actually used, since we use a custom algorithm to do the return
type = ParsedAux
coupled_variables = plastic_strain
expression = 'if(plastic_strain>0,1,0)'
variable = num_iters
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[]
[]
[UserObjects]
[mc_coh]
type = SolidMechanicsHardeningConstant
value = 5E6
[]
[mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[]
[mc_psi]
type = SolidMechanicsHardeningConstant
value = 10
convert_to_radians = true
[]
[mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 16E9
poissons_ratio = 0.25
[]
[mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[]
[strain_from_initial_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6E6 0 0 0 6E6 0 0 0 6E6'
eigenstrain_name = ini_stress
[]
[]
[Preconditioning]
[andy]
type = SMP
full = true
[]
[]
[Executioner]
start_time = -1
end_time = 10
dt = 1
dtmin = 1
solve_type = NEWTON
type = Transient
l_tol = 1E-2
nl_abs_tol = 1E-5
nl_rel_tol = 1E-7
l_max_its = 200
nl_max_its = 400
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
perf_graph = true
csv = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto23.i)
# MeanCapTC with compressive failure
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 10
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -10
value_residual = -1
internal_limit = 9
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
use_custom_cto = true
use_custom_returnMap = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '-6 5 4 5 -7 2 4 2 -2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = cap
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/combined/test/tests/j2_plasticity_vs_LSH/necking/j2_hard1_necking.i)
#
[Mesh]
file = necking_quad4.e
displacements = 'disp_x disp_y'
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y'
use_displaced_mesh = true
# save_in_disp_x = force_x
save_in_disp_y = force_y
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_yy]
order = CONSTANT
family = MONOMIAL
[../]
# [./force_x]
# order = FIRST
# family = LAGRANGE
# [../]
[./force_y]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./strain_xx]
type = RankTwoAux
rank_two_tensor = total_strain
variable = strain_xx
index_i = 0
index_j = 0
[../]
[./strain_yy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = strain_yy
index_i = 1
index_j = 1
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./bottom]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./y_top]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't/5'
[../]
[]
[UserObjects]
[./str]
type = TensorMechanicsHardeningConstant
value = 2.4e2
[../]
[./j2]
type = TensorMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
#with E = 2.1e5 and nu = 0.3
#changed to SM values using E-nu to Lambda-G
C_ijkl = '121154 80769.2'
[../]
[./strain]
type = ComputeFiniteStrain
block = 1
displacements = 'disp_x disp_y'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-9
plastic_models = j2
[../]
[]
[Executioner]
end_time = 0.2
dt = 0.005
type = Transient
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-12
nl_abs_tol = 1e-10
l_tol = 1e-9
[]
[Postprocessors]
[./stress_xx]
type = ElementAverageValue
variable = stress_xx
[../]
[./stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./strain_xx]
type = ElementAverageValue
variable = strain_xx
[../]
[./strain_yy]
type = ElementAverageValue
variable = strain_yy
[../]
[./disp_y]
type = NodalSum
variable = disp_y
boundary = top
[../]
[./force_y]
type = NodalSum
variable = force_y
boundary = top
[../]
[]
[Outputs]
exodus = true
csv = true
print_linear_residuals = false
perf_graph = true
[]
(modules/solid_mechanics/test/tests/multi/two_surface05.i)
# Plasticit models:
# SimpleTester with a = 0 and b = 1 and strength = 1
# SimpleTester with a = 1 and b = 1 and strength = 2
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 3E-6m in y directions and 1.0E-6 in z direction.
# trial stress_zz = 1 and stress_yy = 3
#
# Then SimpleTester2 should activate and the algorithm will return to
# stress_zz = 0, stress_yy = 2
# internal0 should be zero, and internal1 should be 1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[]
[UserObjects]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 2
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = two_surface05
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform2.i)
# checking for small deformation
# A single element is stretched by 1E-6m in all directions.
# tensile_strength is set to 1Pa, and smoother = 0.5
# Then the final stress should return to the yield surface and all principal stresses should be 0.5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.5
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard1.i)
# Checking internal-parameter evolution
# A single element is stretched by 1E-6*t in z directions.
#
# Young's modulus = 20 MPa. Tensile strength = 10 Pa
#
# There are two time steps.
# In the first
# trial stress_zz = Youngs Modulus*Strain = 2E7*1E-6 = 20 Pa
# so this returns to stress_zz = 10 Pa, and half of the deformation
# goes to plastic strain, yielding ep_zz_plastic = 0.5E-6
# In the second
# trial stress_zz = 10 + Youngs Modulus*(Strain increment) = 10 + 2E7*1E-6 = 30 Pa
# so this returns to stress_zz = 10 Pa, and all of the deformation
# goes to plastic strain, yielding ep_zz_plastic increment = 1E-6,
# so total plastic strain_zz = 1.5E-6.
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 0
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 0
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 1E-6*t
[]
[]
[AuxVariables]
[wpt_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wpt_internal]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wpt_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[wpt_internal]
type = PointValue
point = '0 0 0'
variable = wpt_internal
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 10
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-11
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-11
[]
[]
[Executioner]
end_time = 2
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto10.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/six_surface14.i
# Plasticity models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
# SimpleTester3 with a = 0 and b = 1 and strength = 1.1
# SimpleTester4 with a = 1 and b = 0 and strength = 1.1
# SimpleTester5 with a = 1 and b = 1 and strength = 3.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to three_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple4]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple5]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 2.1 0 0 0 3.0'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3 simple4 simple5'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform2.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 20
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform2.i)
# checking for small deformation
# A single element is stretched by 1E-6m in x,y and z directions.
# stress_zz = Youngs Modulus*Strain = 2E6*1E-6 = 2 Pa
# wpt_tensile_strength is set to 5Pa
# Since maximum stress which is 2Pa is less than tension cutoff, plastic yeilding shoud not be observed.
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 1E-6
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 1E-6
[]
[topz]
type = DirichletBC
variable = z_disp
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 5
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/random01.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_yield_fcn]
type = ElementExtremeValue
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'max_yield_fcn'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1.5
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 2
ep_plastic_tolerance = 1E-6
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random01
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/random_planar.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 100
ny = 1250
nz = 1
xmin = 0
xmax = 100
ymin = 0
ymax = 1250
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./coh]
type = SolidMechanicsHardeningCubic
value_0 = 1000
value_residual = 100
internal_limit = 4
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.3
internal_limit = 2
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 15
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = coh
friction_angle = phi
dilation_angle = psi
yield_function_tolerance = 1E-3
shift = 1E-10
internal_constraint_tolerance = 1E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-10
plastic_models = mc
min_stepsize = 1
max_stepsize_for_dumb = 1
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random_planar
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface13.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.0E-6m in y direction and 0E-6 in z direction.
# trial stress_yy = 2 and stress_zz = 0
#
# Then SimpleTester1 should activate and the algorithm will return to
# stress_yy=1
# internal1 should be 1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface13
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/many_deforms_cap.i)
# apply many large deformations, checking that the algorithm returns correctly to
# the yield surface each time
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[../]
[./bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[../]
[./bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[../]
[./topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '(sin(0.05*t)+x)/1E0'
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '(cos(0.04*t)+x*y)/1E0'
[../]
[./topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 't/1E2'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
tip_scheme = cap
mc_tip_smoother = 0.0
cap_start = 1000
cap_rate = 1E-3
mc_edge_smoother = 10
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 1000
ep_plastic_tolerance = 1E-6
plastic_models = mc
debug_fspb = crash
deactivation_scheme = safe
[../]
[]
[Executioner]
end_time = 1000
dt = 1
type = Transient
[]
[Outputs]
file_base = many_deforms_cap
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/two_surface03.i)
# Plasticit models:
# SimpleTester with a = 0 and b = 1 and strength = 1
# SimpleTester with a = 1 and b = 1 and strength = 2
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 3.0E-6m in z directions and 0.5E-6 in y direction.
# trial stress_zz = 3.0 and stress_yy = 0.5
#
# Then both SimpleTesters should activate initially and return to the "corner" point
# (stress_zz = 1 = stress_yy), but then the plastic multiplier for SimpleTester2 will
# be negative, and so it will be deactivated, and the algorithm will return to
# stress_zz = 1, stress_yy = 0.5
# internal0 should be 2, and internal1 should be 0
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[]
[UserObjects]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 2
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = two_surface03
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto05.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface04.i
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 0.8 and stress_zz = 1.5
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1
# internal0 should be 0.2E-6, and internal2 should be 0.3E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 0.8 0 0 0 1.5'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/combined/test/tests/j2_plasticity_vs_LSH/j2_hard1_mod.i)
# Test designed to compare results and active time between SH/LinearStrainHardening
# material vs TM j2 plastic user object. As number of elements increases, TM
# active time increases at a much higher rate than SM. Testing at 4x4x4
# (64 elements).
#
# plot vm_stress vs intnl to see constant hardening
#
# Original test located at:
# solid_mechanics/tests/j2_plasticity/hard1.i
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
nx = 4
ny = 4
nz = 4
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Modules/TensorMechanics/Master]
[all]
add_variables = true
strain = FINITE
generate_output = 'stress_zz vonmises_stress effective_plastic_strain'
[]
[]
[AuxVariables]
[intnl]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[]
[]
[BCs]
[left]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[]
[bottom]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[]
[back]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[z]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = 't/60'
[]
[]
[UserObjects]
[str]
type = TensorMechanicsHardeningConstant
value = 2.4e2
[]
[j2]
type = TensorMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
#with E = 2.1e5 and nu = 0.3
#Hooke's law: E-nu to Lambda-G
C_ijkl = '121154 80769.2'
[]
[mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-9
plastic_models = j2
tangent_operator = elastic
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-6
nl_abs_tol = 1e-10
l_tol = 1e-4
start_time = 0.0
end_time = 0.5
dt = 0.01
[]
[Postprocessors]
[stress_zz]
type = ElementAverageValue
variable = stress_zz
[]
[intnl]
type = ElementAverageValue
variable = intnl
[]
[eq_pl_strain]
type = PointValue
point = '0 0 0'
variable = effective_plastic_strain
[]
[vm_stress]
type = PointValue
point = '0 0 0'
variable = vonmises_stress
[]
[]
[Outputs]
csv = true
print_linear_residuals = false
perf_graph = true
[]
(modules/solid_mechanics/test/tests/j2_plasticity/small_deform2.i)
# UserObject J2 test
# apply uniform stretch in z direction to give
# trial stress_zz = 7, so sqrt(3*J2) = 7
# with zero Poisson's ratio, this should return to
# stress_zz = 3, stress_xx = 2 = stress_yy
# (note that stress_zz - stress_xx = stress_zz - stress_yy = 1, so sqrt(3*j2) = 1,
# and that the mean stress remains = 7/3)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface07.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.5E-6m in y direction and 0.8E-6 in z direction.
# trial stress_yy = 1.5 and stress_zz = 0.8
#
# Then SimpleTester1 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=1.0, stress_zz=0.5
# internal1 should be 0.2, and internal2 should be 0.3
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.5E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.8E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface07
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/isotropicSD_plasticity/powerRuleHardening.i)
# UserObject IsotropicSD test, with power rule hardening with rate 1e2.
# Linear strain is applied in the x and y direction.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -.5
xmax = .5
ymin = -.5
ymax = .5
zmin = -.5
zmax = .5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./xdisp]
type = FunctionDirichletBC
variable = disp_x
boundary = 'right'
function = '0.005*t'
[../]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'top'
function = '0.005*t'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
#boundary = 'bottom top'
boundary = 'bottom'
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[./zfix]
type = DirichletBC
variable = disp_z
#boundary = 'front back'
boundary = 'back'
value = 0
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[./sdev]
order = CONSTANT
family = MONOMIAL
[../]
[./sdet]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./plastic_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xx
index_i = 0
index_j = 0
[../]
[./plastic_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xy
index_i = 0
index_j = 1
[../]
[./plastic_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xz
index_i = 0
index_j = 2
[../]
[./plastic_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yy
index_i = 1
index_j = 1
[../]
[./plastic_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yz
index_i = 1
index_j = 2
[../]
[./plastic_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[./sdev]
type = RankTwoScalarAux
variable = sdev
rank_two_tensor = stress
scalar_type = VonMisesStress
[../]
[]
[Postprocessors]
[./sdev]
type = PointValue
point = '0 0 0'
variable = sdev
[../]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./p_xx]
type = PointValue
point = '0 0 0'
variable = plastic_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./p_xy]
type = PointValue
point = '0 0 0'
variable = plastic_xy
[../]
[./p_xz]
type = PointValue
point = '0 0 0'
variable = plastic_xz
[../]
[./p_yz]
type = PointValue
point = '0 0 0'
variable = plastic_yz
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./p_yy]
type = PointValue
point = '0 0 0'
variable = plastic_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./p_zz]
type = PointValue
point = '0 0 0'
variable = plastic_zz
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningPowerRule
value_0 = 300
epsilon0 = 1
exponent = 1e2
[../]
[./IsotropicSD]
type = SolidMechanicsPlasticIsotropicSD
b = -0.2
c = -0.779422863
associative = true
yield_strength = str
yield_function_tolerance = 1e-5
internal_constraint_tolerance = 1e-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '121e3 80e3'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1e-9
plastic_models = IsotropicSD
debug_fspb = crash
tangent_operator = elastic
[../]
[]
[Executioner]
num_steps = 3
dt = .5
type = Transient
nl_rel_tol = 1e-6
nl_max_its = 10
l_tol = 1e-4
l_max_its = 50
solve_type = PJFNK
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Outputs]
perf_graph = false
csv = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
(modules/solid_mechanics/test/tests/multi/two_surface04.i)
# Plasticit models:
# SimpleTester with a = 0 and b = 1 and strength = 1
# SimpleTester with a = 1 and b = 1 and strength = 2
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 4.0E-6m in y directions and 2.0E-6 in z direction.
# trial stress_zz = 2 and stress_yy = 4
#
# Then both SimpleTesters should activate initially and return to the "corner" point
# (stress_zz = 1 = stress_yy), but then the plastic multiplier for SimpleTester1 will
# be negative, and so it will be deactivated, and the algorithm will return to
# stress_zz = 0, stress_yy = 2
# internal1 should be zero, internal2 should be 2
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '4E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[]
[UserObjects]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 2
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = two_surface04
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto15.i)
# Jacobian check for nonlinear, multi-surface plasticity
# This returns to the edge of Mohr Coulomb.
# This is a very nonlinear test and a delicate test because it perturbs around
# an edge of the yield function where some derivatives are not well defined
#
# Plasticity models:
# Mohr-Coulomb with cohesion = 40MPa, friction angle = 35deg, dilation angle = 5deg
# Tensile with strength = 1MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# NOTE: The yield function tolerances here are set at 100-times what i would usually use
# This is because otherwise the test fails on the 'pearcey' architecture.
# This is because identical stress tensors yield slightly different eigenvalues
# (and hence return-map residuals) on 'pearcey' than elsewhere, which results in
# a different number of NR iterations are needed to return to the yield surface.
# This is presumably because of compiler internals, or the BLAS routines being
# optimised differently or something similar.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[./int4]
order = CONSTANT
family = MONOMIAL
[../]
[./int5]
order = CONSTANT
family = MONOMIAL
[../]
[./int6]
order = CONSTANT
family = MONOMIAL
[../]
[./int7]
order = CONSTANT
family = MONOMIAL
[../]
[./int8]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int0
index = 0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int1
index = 1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int2
index = 2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int3
index = 3
[../]
[./int4]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int4
index = 4
[../]
[./int5]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int5
index = 5
[../]
[./int6]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int6
index = 6
[../]
[./int7]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int7
index = 7
[../]
[./int8]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int8
index = 8
[../]
[]
[Postprocessors]
[./max_int0]
type = ElementExtremeValue
variable = int0
outputs = console
[../]
[./max_int1]
type = ElementExtremeValue
variable = int1
outputs = console
[../]
[./max_int2]
type = ElementExtremeValue
variable = int2
outputs = console
[../]
[./max_int3]
type = ElementExtremeValue
variable = int3
outputs = console
[../]
[./max_int4]
type = ElementExtremeValue
variable = int4
outputs = console
[../]
[./max_int5]
type = ElementExtremeValue
variable = int5
outputs = console
[../]
[./max_int6]
type = ElementExtremeValue
variable = int6
outputs = console
[../]
[./max_int7]
type = ElementExtremeValue
variable = int7
outputs = console
[../]
[./max_int8]
type = ElementExtremeValue
variable = int8
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console' [../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console' [../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console' [../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console' [../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4E1
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1.0E-4 # Note larger value
shift = 1.0E-4 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E2
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E-4 # Note larger value
shift = 1.0E-4 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.0E3 1.3E3'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '100.1 0.1 -0.2 0.1 0.9 0 -0.2 0 1.1'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile mc'
max_NR_iterations = 5
specialIC = 'rock'
deactivation_scheme = 'safe'
min_stepsize = 1
max_stepsize_for_dumb = 1
tangent_operator = nonlinear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
end_time = 1
[]
[Outputs]
file_base = cto15
exodus = false
[]
(modules/solid_mechanics/test/tests/multi/three_surface16.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 3.0E-6m in y direction and 2.1E-6 in z direction.
# trial stress_yy = 3.0 and stress_zz = 2.1
#
# A complicated return will follow, with various contraints being
# deactivated, kuhn-tucker failing, line-searching, etc, but
# the result should be
# stress_yy=1=stress_zz, and internal0=1.1 internal1=2
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2.1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface16
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/four_surface24.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 2 and strength = 3.1
# SimpleTester3 with a = 2 and b = 1 and strength = 3.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to four_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./f3]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./f3]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 3
variable = f3
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 3
variable = int3
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = f3
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[./int3]
type = PointValue
point = '0 0 0'
variable = int3
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 2
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 2
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3'
deactivation_scheme = 'optimized_to_safe'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = four_surface24
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform_hard3.i)
# checking for small deformation, with cubic hardening
# A single element is repeatedly stretched by in z direction
# tensile_strength is set to 1Pa, tensile_strength_residual = 0.5Pa, and limit value = 1E-5
# This allows the hardening of the tensile strength to be observed
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[./iter_auxk]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1.0
value_residual = 0.5
internal_0 = 0
internal_limit = 1E-5
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.0
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = 0.8
debug_jac_at_intnl = 1
debug_stress_change = 1E-8
debug_pm_change = 1E-5
debug_intnl_change = 1E-5
[../]
[]
[Executioner]
end_time = 10
dt = 1.0
type = Transient
[]
[Outputs]
file_base = small_deform_hard3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar_hard3.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# Both return to the edge (lode angle = 30deg, ie 010100) and tip are experienced.
#
# It is checked that the yield functions are less than their tolerance values
# It is checked that the cohesion hardens correctly
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.05E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if((a<1E-5)&(b<1E-5)&(c<1E-5)&(d<1E-5)&(g<1E-5)&(h<1E-5),0,abs(a)+abs(b)+abs(c)+abs(d)+abs(g)+abs(h))'
symbol_names = 'a b c d g h'
symbol_values = 'f0 f1 f2 f3 f4 f5'
[../]
[./coh_analytic]
type = ParsedFunction
expression = '20-10*exp(-1E5*intnl)'
symbol_names = intnl
symbol_values = internal
[../]
[./coh_from_yieldfcns]
type = ParsedFunction
expression = '(f0+f1-(sxx+syy)*sin(phi))/(-2)/cos(phi)'
symbol_names = 'f0 f1 sxx syy phi'
symbol_values = 'f0 f1 s_xx s_yy 0.8726646'
[../]
[./should_be_zero_coh]
type = ParsedFunction
expression = 'if(abs(a-b)<1E-6,0,1E6*abs(a-b))'
symbol_names = 'a b'
symbol_values = 'Coh_analytic Coh_moose'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn0]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn1]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn2]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn3]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn4]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn5]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn0]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn0
[../]
[./yield_fcn1]
type = MaterialStdVectorAux
index = 1
property = plastic_yield_function
variable = yield_fcn1
[../]
[./yield_fcn2]
type = MaterialStdVectorAux
index = 2
property = plastic_yield_function
variable = yield_fcn2
[../]
[./yield_fcn3]
type = MaterialStdVectorAux
index = 3
property = plastic_yield_function
variable = yield_fcn3
[../]
[./yield_fcn4]
type = MaterialStdVectorAux
index = 4
property = plastic_yield_function
variable = yield_fcn4
[../]
[./yield_fcn5]
type = MaterialStdVectorAux
index = 5
property = plastic_yield_function
variable = yield_fcn5
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = yield_fcn2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = yield_fcn3
[../]
[./f4]
type = PointValue
point = '0 0 0'
variable = yield_fcn4
[../]
[./f5]
type = PointValue
point = '0 0 0'
variable = yield_fcn5
[../]
[./yfcns_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./Coh_analytic]
type = FunctionValuePostprocessor
function = coh_analytic
[../]
[./Coh_moose]
type = FunctionValuePostprocessor
function = coh_from_yieldfcns
[../]
[./cohesion_difference_should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_coh
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 20
rate = 1E5
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 0.8726646
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 1 #0.8726646 # 50deg
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1E-5
use_custom_returnMap = true
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
[../]
[]
[Executioner]
end_time = 5
dt = 1
type = Transient
[]
[Outputs]
file_base = planar_hard3
exodus = false
[./csv]
type = CSV
hide = 'f0 f1 f2 f3 f4 f5 s_xy s_xz s_yz Coh_analytic Coh_moose'
execute_on = 'timestep_end'
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/except3.i)
# checking for exception error messages on the edge smoothing
# here edge_smoother=5deg, which means the friction_angle must be <= 35.747
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 36
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 1
mc_edge_smoother = 5
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = except3
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/six_surface14.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
# SimpleTester3 with a = 0 and b = 1 and strength = 1.1
# SimpleTester4 with a = 1 and b = 0 and strength = 1.1
# SimpleTester5 with a = 1 and b = 1 and strength = 3.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to three_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./f3]
order = CONSTANT
family = MONOMIAL
[../]
[./f4]
order = CONSTANT
family = MONOMIAL
[../]
[./f5]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[./int4]
order = CONSTANT
family = MONOMIAL
[../]
[./int5]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./f3]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 3
variable = f3
[../]
[./f4]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 4
variable = f4
[../]
[./f5]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 5
variable = f5
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 3
variable = int3
[../]
[./int4]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 4
variable = int4
[../]
[./int5]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 5
variable = int5
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = f3
[../]
[./f4]
type = PointValue
point = '0 0 0'
variable = f4
[../]
[./f5]
type = PointValue
point = '0 0 0'
variable = f5
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[./int3]
type = PointValue
point = '0 0 0'
variable = int3
[../]
[./int4]
type = PointValue
point = '0 0 0'
variable = int4
[../]
[./int5]
type = PointValue
point = '0 0 0'
variable = int5
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple4]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple5]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3 simple4 simple5'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = six_surface14
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto12.i)
# checking jacobian for nonlinear plasticity (single surface, smoothed MohrCoulomb)
# note: must have min_stepsize=1 otherwise the nonlinearities compound and make the jacobian more inaccurate
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 60
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 25
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '3 0 0 0 3 0 0 0 1.5'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = mc
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform6.i)
# apply nonuniform stretch in x, y and z directions using
# Lame lambda = 0.7E7, Lame mu = 1.0E7,
# trial_stress(0, 0) = 2.9
# trial_stress(1, 1) = 10.9
# trial_stress(2, 2) = 14.9
# With tensile_strength = 2, decaying to zero at internal parameter = 4E-7
# via a Cubic, the algorithm should return to:
# internal parameter = 2.26829E-7
# trace(stress) = 0.799989 = tensile_strength
# stress(0, 0) = -6.4
# stress(1, 1) = 1.6
# stress(2, 2) = 5.6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 2
value_residual = 0
internal_limit = 4E-7
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -1
value_residual = 0
internal_limit = 1E-8
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-11
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform6
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface04.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 0.8E-6m in y direction and 1.5E-6 in z direction.
# trial stress_yy = 0.8 and stress_zz = 1.5
#
# Then SimpleTester0 and SimpleTester2 should activate and the algorithm will return to
# the corner stress_yy=0.5, stress_zz=1
# internal0 should be 0.2, and internal2 should be 0.3
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.8E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface04
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/except1.i)
# checking for exception error messages
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 8E-6
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 6E-6
[]
[topz]
type = DirichletBC
variable = z_disp
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.55
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 0
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-3
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wps
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-3
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
(modules/solid_mechanics/test/tests/multi/three_surface20.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.1E-6m in y direction and 1.7E-6 in z direction.
# trial stress_yy = 1.1 and stress_zz = 1.7
#
# Then all yield functions will activate
# However, there is linear dependence. SimpleTester1 will be rutned off.
# The algorithm will return to
# stress_yy=0.5 and stress_zz=1
# internal0=0.1, internal2=0.6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.7E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface20
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto18.i)
# Jacobian check for nonlinear, multi-surface plasticity.
# Returns to the edge of the tensile yield surface
#
# Plasticity models:
# Tensile with strength = 1MPa softening to 0.5MPa in 2E-2 strain
#
# Lame lambda = 0.5GPa. Lame mu = 1GPa
#
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int0
index = 0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int1
index = 1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int2
index = 2
[../]
[]
[Postprocessors]
[./max_int0]
type = ElementExtremeValue
variable = int0
outputs = console
[../]
[./max_int1]
type = ElementExtremeValue
variable = int1
outputs = console
[../]
[./max_int2]
type = ElementExtremeValue
variable = int2
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console' [../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console' [../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console' [../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console' [../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0.5
internal_limit = 2E-2
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E-6 # Note larger value
shift = 1.0E-6 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0.5E3 1E3'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '-1 0.1 0.2 0.1 15 -0.3 0.2 -0.3 14'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile'
max_NR_iterations = 5
deactivation_scheme = 'safe'
min_stepsize = 1
tangent_operator = nonlinear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
#petsc_options = '-snes_test_display'
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
[Outputs]
file_base = cto18
exodus = false
[]
(modules/solid_mechanics/test/tests/multi/two_surface01.i)
# Plasticit models:
# SimpleTester with a = 0 and b = 1 and strength = 1
# SimpleTester with a = 1 and b = 1 and strength = 2
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1.5E-6m in the z directions.
# stress_zz = 1.5
#
# Then only the first SimpleTester should activate, and the final stress
# should have have only nonzero component stress_zz = 1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.5E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[]
[UserObjects]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 2
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = two_surface01
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/large_deform1.i)
# rotate the mesh by 90degrees
# then pull in the z direction - should be no plasticity
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
decomposition_method = EigenSolution
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
# rotate:
# ynew = c*y + s*z. znew = -s*y + c*z
[bottomx]
type = FunctionDirichletBC
variable = disp_x
boundary = back
function = '0'
[]
[bottomy]
type = FunctionDirichletBC
variable = disp_y
boundary = back
function = '0*y+1*z-y'
[]
[bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = back
function = '-1*y+0*z-z+if(t>0,0.5-y,0)' # note that this uses original nodal values of (x,y,z)
[]
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '0*y+1*z-y'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '-1*y+0*z-z+if(t>0,0.5-y,0)' # note that this uses original nodal values of (x,y,z)
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 1
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[]
[]
[Executioner]
start_time = -1
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
exodus = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto11.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/eight_surface14.i
# Plasticity models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
# SimpleTester3 with a = 0 and b = 1 and strength = 1.1
# SimpleTester4 with a = 1 and b = 0 and strength = 1.1
# SimpleTester5 with a = 1 and b = 1 and strength = 3.1
# SimpleTester6 with a = 1 and b = 2 and strength = 3.1
# SimpleTester7 with a = 2 and b = 1 and strength = 3.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to three_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple4]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple5]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple6]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 2
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple7]
type = SolidMechanicsPlasticSimpleTester
a = 2
b = 1
strength = 3.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 2.1 0 0 0 3.0'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3 simple4 simple5 simple6 simple7'
deactivation_scheme = optimized_to_safe
max_NR_iterations = 4
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform_hard2.i)
# apply uniform stretches in x, y and z directions.
# let friction_angle = 60deg, friction_angle_residual=10deg, friction_angle_rate = 0.5E4
# With cohesion = C, friction_angle = phi, tip_smoother = T, the
# algorithm should return to
# sigma_m = (C*Cos(phi) - T)/Sin(phi)
# Or, when T=C,
# phi = 2*pi*n - 2*arctan(sigma_m/C)
# This allows checking of the relationship for phi
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningExponential
value_0 = 1.04719755 # 60deg
value_residual = 0.17453293 # 10deg
rate = 0.5E4
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 10
mc_edge_smoother = 25
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 1 2 1 10 3 2 3 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1E-3
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform_hard2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto14.i)
# Jacobian check for nonlinear, multi-surface plasticity.
# Returns to an edge of the tensile yield surface
# This is a very nonlinear test and a delicate test because it perturbs around
# an edge of the yield function where some derivatives are not well defined
#
# Plasticity models:
# Mohr-Coulomb with cohesion = 40MPa, friction angle = 35deg, dilation angle = 5deg
# Tensile with strength = 1MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# NOTE: The yield function tolerances here are set at 100-times what i would usually use
# This is because otherwise the test fails on the 'pearcey' architecture.
# This is because identical stress tensors yield slightly different eigenvalues
# (and hence return-map residuals) on 'pearcey' than elsewhere, which results in
# a different number of NR iterations are needed to return to the yield surface.
# This is presumably because of compiler internals, or the BLAS routines being
# optimised differently or something similar.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[./int4]
order = CONSTANT
family = MONOMIAL
[../]
[./int5]
order = CONSTANT
family = MONOMIAL
[../]
[./int6]
order = CONSTANT
family = MONOMIAL
[../]
[./int7]
order = CONSTANT
family = MONOMIAL
[../]
[./int8]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int0
index = 0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int1
index = 1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int2
index = 2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int3
index = 3
[../]
[./int4]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int4
index = 4
[../]
[./int5]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int5
index = 5
[../]
[./int6]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int6
index = 6
[../]
[./int7]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int7
index = 7
[../]
[./int8]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int8
index = 8
[../]
[]
[Postprocessors]
[./max_int0]
type = ElementExtremeValue
variable = int0
outputs = console
[../]
[./max_int1]
type = ElementExtremeValue
variable = int1
outputs = console
[../]
[./max_int2]
type = ElementExtremeValue
variable = int2
outputs = console
[../]
[./max_int3]
type = ElementExtremeValue
variable = int3
outputs = console
[../]
[./max_int4]
type = ElementExtremeValue
variable = int4
outputs = console
[../]
[./max_int5]
type = ElementExtremeValue
variable = int5
outputs = console
[../]
[./max_int6]
type = ElementExtremeValue
variable = int6
outputs = console
[../]
[./max_int7]
type = ElementExtremeValue
variable = int7
outputs = console
[../]
[./max_int8]
type = ElementExtremeValue
variable = int8
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console' [../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console' [../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console' [../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console' [../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4E1
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1.0E-4 # Note larger value
shift = 1.0E-4 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E0
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E-4 # Note larger value
shift = 1.0E-4 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1.0E3 1.3E3'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 12 -14 12 5 20 -14 20 8'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile mc'
max_NR_iterations = 5
specialIC = 'rock'
deactivation_scheme = 'safe'
min_stepsize = 1
tangent_operator = nonlinear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
[Outputs]
file_base = cto14
exodus = false
[]
(modules/solid_mechanics/test/tests/weak_plane_shear/small_deform2.i)
# apply a pure tension, then some shear with compression
# the BCs are designed to map out the yield function, showing
# the affect of the small_smoother parameter
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = FunctionDirichletBC
variable = x_disp
boundary = front
function = 'if(t<1E-6,0,3*t)'
[]
[topy]
type = FunctionDirichletBC
variable = y_disp
boundary = front
function = 'if(t<1E-6,0,5*(t-0.01E-6))'
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 'if(t<1E-6,t,2E-6-t)'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[]
[tanphi]
type = SolidMechanicsHardeningConstant
value = 1
[]
[tanpsi]
type = SolidMechanicsHardeningConstant
value = 0.01745506
[]
[wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
smoother = 500
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1E9 0.5E9'
[]
[mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-4
plastic_models = wps
transverse_direction = '0 0 1'
debug_fspb = crash
[]
[]
[Executioner]
end_time = 2E-6
dt = 1E-7
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/multi/three_surface15.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 3.0E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 3.0 and stress_zz = 3
#
# A complicated return will follow, with various contraints being
# deactivated, kuhn-tucker failing, line-searching, etc, but
# the result should be
# stress_yy=1=stress_zz, and internal0=2 internal1=2
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface15
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto04.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface00.i
# Plastic models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 1 and stress_zz = 1
#
# Then SimpleTester2 should activate and the algorithm will return to
# stress_yy = 0.75, stress_zz = 0.75
# internal2 should be 0.25E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 1 0 0 0 1'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/multi/four_surface14.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 3
# SimpleTester3 with a = 0 and b = 1 and strength = 1.1
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.1E-6m in y direction and 3E-6 in z direction.
# trial stress_yy = 2.1 and stress_zz = 3.0
#
# This is similar to three_surface14.i, and a description is found there.
# The result should be stress_zz=1=stress_yy, with internal0=2
# and internal1=1.1
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '3.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./f3]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int3]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./f3]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 3
variable = f3
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[./int3]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 3
variable = int3
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./f3]
type = PointValue
point = '0 0 0'
variable = f3
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[./int3]
type = PointValue
point = '0 0 0'
variable = int3
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 3
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[./simple3]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1.1
yield_function_tolerance = 1.0E-6
internal_constraint_tolerance = 1.0E-6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2 simple3'
max_NR_iterations = 4
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = four_surface14
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/random_smoothed.i)
# Plasticity models:
# Smoothed tensile with strength = 1MPa
#
# Lame lambda = 1GPa. Lame mu = 1.3GPa
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 1234
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 1234
zmin = 0
zmax = 1
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./tot_iters]
type = ElementIntegralMaterialProperty
mat_prop = plastic_NR_iterations
outputs = console
[../]
[./raw_f0]
type = ElementExtremeValue
variable = f0
outputs = console
[../]
[./iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./f0]
type = FunctionValuePostprocessor
function = should_be_zero0_fcn
[../]
[]
[Functions]
[./should_be_zero0_fcn]
type = ParsedFunction
expression = 'if(a<1E-1,0,a)'
symbol_names = 'a'
symbol_values = 'raw_f0'
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E6
[../]
[./tensile]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
tensile_tip_smoother = 1E5
yield_function_tolerance = 1.0E-1
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1E9 1.3E9'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile'
max_NR_iterations = 20
min_stepsize = 1E-4
max_stepsize_for_dumb = 1E-3
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1 1'
debug_jac_at_intnl = '1 1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random_smoothed
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform1.i)
# checking for small deformation
# A single element is stretched by 1E-6m in x,y and z directions.
# stress_zz = Youngs Modulus*Strain = 2E6*1E-6 = 2 Pa
# wpt_tensile_strength is set to 1Pa
# Then the final stress should return to the yeild surface and its value should be 1pa.
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xz stress_zx stress_yz stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = disp_x
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = disp_y
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = disp_x
boundary = front
value = 0E-6
[]
[topy]
type = DirichletBC
variable = disp_y
boundary = front
value = 0E-6
[]
[topz]
type = DirichletBC
variable = disp_z
boundary = front
value = 1E-6
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 1
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/small_deform_hard3.i)
# Checking evolution tensile strength
# A single element is stretched by 1E-6*t in z direction, and
# the yield-surface evolution is mapped out
[GlobalParams]
displacements = 'x_disp y_disp z_disp'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_zz'
[]
[BCs]
[bottomx]
type = DirichletBC
variable = x_disp
boundary = back
value = 0.0
[]
[bottomy]
type = DirichletBC
variable = y_disp
boundary = back
value = 0.0
[]
[bottomz]
type = DirichletBC
variable = z_disp
boundary = back
value = 0.0
[]
[topx]
type = DirichletBC
variable = x_disp
boundary = front
value = 0
[]
[topy]
type = DirichletBC
variable = y_disp
boundary = front
value = 0
[]
[topz]
type = FunctionDirichletBC
variable = z_disp
boundary = front
function = 1E-6*t
[]
[]
[AuxVariables]
[wpt_internal]
order = CONSTANT
family = MONOMIAL
[]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[wpt_internal]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = wpt_internal
[]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[wpt_internal]
type = PointValue
point = '0 0 0'
variable = wpt_internal
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningExponential
value_0 = 10
value_residual = 4
rate = 1E6
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-11
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-11
[]
[]
[Executioner]
end_time = 4
dt = 0.5
type = Transient
[]
[Outputs]
csv = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto08.i)
# checking jacobian for 3-plane linear plasticity using SimpleTester.
#
# This is like the test multi/three_surface12.i
# Plasticity models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# trial stress_yy = 0.15 and stress_zz = 1.5
#
# Then SimpleTester0 and SimpleTester1 should activate and the algorithm will return to
# stress_zz=1=stress_yy
# internal0 should be 0.5 and internal1 should be 0.5
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '0 0 0 0 0.15 0 0 0 1.5'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
tangent_operator = linear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/small_deform2.i)
# apply uniform stretch in x, y and z directions.
# trial_stress(0, 0) = -2
# trial_stress(1, 1) = 6
# trial_stress(2, 2) = 10
# With tensile_strength = 2, the algorithm should return to trace(stress) = 2, or
# stress(0, 0) = -6
# stress(1, 1) = 2
# stress(2, 2) = 6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1E-7*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '3E-7*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '5E-7*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningConstant
value = 2
[../]
[./compressive_strength]
type = SolidMechanicsHardeningConstant
value = -1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mean_cap]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/jacobian/cto01.i)
# checking jacobian for a fully-elastic situation
[Mesh]
type = GeneratedMesh
dim = 3
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[ICs]
[./disp_x]
type = RandomIC
variable = disp_x
min = -0.1
max = 0.1
[../]
[./disp_y]
type = RandomIC
variable = disp_y
min = -0.1
max = 0.1
[../]
[./disp_z]
type = RandomIC
variable = disp_z
min = -0.1
max = 0.1
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '1 2'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '1 2 3 2 -4 -5 3 -5 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-5
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/tutorials/basics/part_2.3.i)
#Tensor Mechanics tutorial: the basics
#Step 2, part 3
#2D axisymmetric RZ simulation of uniaxial tension with J2 plasticity with no
#hardening
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Mesh]
file = necking_quad4.e
uniform_refine = 0
second_order = true
[]
[Physics/SolidMechanics/QuasiStatic]
[./block1]
strain = FINITE
add_variables = true
generate_output = 'stress_yy strain_yy' #use the yy option to get the zz component in axisymmetric coords
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 2.1e5
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1e-9
plastic_models = J2
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 2.4e2
[../]
[./J2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = disp_r
boundary = left
value = 0.0
[../]
[./bottom]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0.0
[../]
[./top]
type = FunctionDirichletBC
variable = disp_z
boundary = top
function = '0.0007*t'
[../]
[]
[Preconditioning]
[./SMP]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
dt = 0.25
end_time = 20
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-pc_type -sub_pc_type -pc_asm_overlap -ksp_gmres_restart'
petsc_options_value = 'asm lu 1 101'
[]
[Postprocessors]
[./ave_stress_bottom]
type = SideAverageValue
variable = stress_yy
boundary = bottom
[../]
[./ave_strain_bottom]
type = SideAverageValue
variable = strain_yy
boundary = bottom
[../]
[]
[Outputs]
exodus = true
perf_graph = true
csv = true
print_linear_residuals = false
[]
(modules/solid_mechanics/test/tests/isotropicSD_plasticity/isotropicSD.i)
# UserObject IsotropicSD test, with constant hardening.
# Linear strain is applied in the x and y direction.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -.5
xmax = .5
ymin = -.5
ymax = .5
zmin = -.5
zmax = .5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./xdisp]
type = FunctionDirichletBC
variable = disp_x
boundary = 'right'
function = '0.005*t'
[../]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'top'
function = '0.005*t'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = 'bottom'
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = 'left'
value = 0
[../]
[./zfix]
type = DirichletBC
variable = disp_z
boundary = 'back'
value = 0
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./plastic_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[./sdev]
order = CONSTANT
family = MONOMIAL
[../]
[./sdet]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./plastic_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xx
index_i = 0
index_j = 0
[../]
[./plastic_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xy
index_i = 0
index_j = 1
[../]
[./plastic_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_xz
index_i = 0
index_j = 2
[../]
[./plastic_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yy
index_i = 1
index_j = 1
[../]
[./plastic_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_yz
index_i = 1
index_j = 2
[../]
[./plastic_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = plastic_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[./sdev]
type = RankTwoScalarAux
variable = sdev
rank_two_tensor = stress
scalar_type = VonMisesStress
[../]
[]
[Postprocessors]
[./sdev]
type = PointValue
point = '0 0 0'
variable = sdev
[../]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./p_xx]
type = PointValue
point = '0 0 0'
variable = plastic_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./p_xy]
type = PointValue
point = '0 0 0'
variable = plastic_xy
[../]
[./p_xz]
type = PointValue
point = '0 0 0'
variable = plastic_xz
[../]
[./p_yz]
type = PointValue
point = '0 0 0'
variable = plastic_yz
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./p_yy]
type = PointValue
point = '0 0 0'
variable = plastic_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./p_zz]
type = PointValue
point = '0 0 0'
variable = plastic_zz
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningConstant
value = 300
[../]
[./IsotropicSD]
type = SolidMechanicsPlasticIsotropicSD
b = -0.2
c = -0.779422863
associative = true
yield_strength = str
yield_function_tolerance = 1e-5
internal_constraint_tolerance = 1e-9
use_custom_returnMap = false
use_custom_cto = false
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '121e3 80e3'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1e-9
plastic_models = IsotropicSD
debug_fspb = crash
tangent_operator = elastic
[../]
[]
[Executioner]
num_steps = 3
dt = .5
type = Transient
nl_rel_tol = 1e-6
nl_max_its = 10
l_tol = 1e-4
l_max_its = 50
solve_type = PJFNK
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Outputs]
perf_graph = false
csv = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface00.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 1E-6m in y direction and 1E-6 in z direction.
# trial stress_yy = 1 and stress_zz = 1
#
# Then SimpleTester2 should activate and the algorithm will return to
# stress_yy = 0.75, stress_zz = 0.75
# internal2 should be 0.25
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1'
debug_jac_at_intnl = '1 1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface00
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/uni_axial2.i)
[Mesh]
type = FileMesh
file = quarter_hole.e
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./zmin_zzero]
type = DirichletBC
variable = disp_z
boundary = 'zmin'
value = '0'
[../]
[./xmin_xzero]
type = DirichletBC
variable = disp_x
boundary = 'xmin'
value = '0'
[../]
[./ymin_yzero]
type = DirichletBC
variable = disp_y
boundary = 'ymin'
value = '0'
[../]
[./ymax_disp]
type = FunctionDirichletBC
variable = disp_y
boundary = 'ymax'
function = '-1E-4*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0.005 0.02 0.002'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0.005 0.02 0.002'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10E6
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 2
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 2
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 0.01E6
mc_edge_smoother = 29
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 1
fill_method = symmetric_isotropic
C_ijkl = '0 5E9' # young = 10Gpa, poisson = 0.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 1
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 1
ep_plastic_tolerance = 1E-11
plastic_models = mc
max_NR_iterations = 1000
debug_fspb = crash
[../]
[]
# Preconditioning and Executioner options kindly provided by Andrea
[Preconditioning]
[./andy]
type = SMP
full = true
[../]
[]
[Executioner]
end_time = 0.5
dt = 0.1
solve_type = NEWTON
type = Transient
l_tol = 1E-2
nl_abs_tol = 1E-9
nl_rel_tol = 1E-11
l_max_its = 200
nl_max_its = 400
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[]
[Outputs]
file_base = uni_axial2
exodus = true
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/three_surface21.i)
# Plasticit models:
# SimpleTester0 with a = 0 and b = 1 and strength = 1
# SimpleTester1 with a = 1 and b = 0 and strength = 1
# SimpleTester2 with a = 1 and b = 1 and strength = 1.5
#
# Lame lambda = 0 (Poisson=0). Lame mu = 0.5E6
#
# A single element is stretched by 2.0E-6m in y direction and 2.0E-6 in z direction.
# trial stress_yy = 2.0 and stress_zz = 2.0
#
# Then all yield functions will activate
# However, there is linear dependence. SimpleTester1 or SimpleTester0 will be rutned off (they are equi-distant).
# The algorithm will return to one corner point, but there will be negative plastic multipliers
# so the other SimpleTester0 or SimpleTester1 will turn off, and the algorithm will return to
# stress_yy=0.75 and stress_zz=0.75
# internal2=1.25
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2.0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '2.0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f0]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 0
variable = int0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 1
variable = int1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_internal_parameter
factor = 1E6
index = 2
variable = int2
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./int0]
type = PointValue
point = '0 0 0'
variable = int0
[../]
[./int1]
type = PointValue
point = '0 0 0'
variable = int1
[../]
[./int2]
type = PointValue
point = '0 0 0'
variable = int2
[../]
[]
[UserObjects]
[./simple0]
type = SolidMechanicsPlasticSimpleTester
a = 0
b = 1
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple1]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 0
strength = 1
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[./simple2]
type = SolidMechanicsPlasticSimpleTester
a = 1
b = 1
strength = 1.5
yield_function_tolerance = 1.0E-9
internal_constraint_tolerance = 1.0E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 0.5E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = 'simple0 simple1 simple2'
max_NR_iterations = 2
min_stepsize = 1
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1'
debug_jac_at_intnl = '1 1'
debug_stress_change = 1E-5
debug_pm_change = '1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = three_surface21
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/planar7.i)
# A single unit element is stretched by (0.5, 0.4, 0.3)E-6m
# with Lame lambda = 0.6E6 and Lame mu (shear) = 1E6
# stress_xx = 1.72 Pa
# stress_yy = 1.52 Pa
# stress_zz = 1.32 Pa
# tensile_strength is set to 1.3Pa
#
# The return should be to the edge (the algorithm will first try the tip) with
# plastic_multiplier0 = 0, plastic_multiplier1 = 5E-8, plastic_multiplier2 = 1.5E-7
# internal = 2E-7
# stress_xx = stress_yy = 1.3
# stress_zz = 1.2
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.4E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0.3E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningConstant
value = 1.3
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.6E6 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = tens
debug_fspb = none
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar7
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/planar2.i)
# checking for small deformation
# A single element is stretched by 1E-6m in all directions, with lame mu = 1E6, so trial stress is 2Pa in principal directions
# tensile_strength is set to 1Pa
# Then the final stress should return to the all principal stresses being 1.0 (up to tolerance), and internal parameter = (0.5+0.5+0.5)E-6 = 1.5E-6
# Using 'planar' Tensile plasticity
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./f0]
order = CONSTANT
family = MONOMIAL
[../]
[./f1]
order = CONSTANT
family = MONOMIAL
[../]
[./f2]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./f0_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f0
[../]
[./f1_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f1
[../]
[./f2_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f2
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl_auxk]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = f0
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = f1
[../]
[./f2]
type = PointValue
point = '0 0 0'
variable = f2
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
outputs = console
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./hard]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./tens]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = hard
shift = 1E-6
yield_function_tolerance = 1E-6
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = tens
debug_fspb = crash
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = '0.1 0.2 0.3'
debug_jac_at_intnl = 1E-6
debug_stress_change = 1E-6
debug_pm_change = '1E-6 1E-6 1E-6'
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/mean_cap_TC/random04.i)
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_yield_fcn]
type = ElementExtremeValue
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'max_yield_fcn'
[../]
[]
[UserObjects]
[./tensile_strength]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0.1
internal_limit = 0.1
[../]
[./compressive_strength]
type = SolidMechanicsHardeningCubic
value_0 = -1.5
value_residual = 0
internal_limit = 0.1
[../]
[./cap]
type = SolidMechanicsPlasticMeanCapTC
tensile_strength = tensile_strength
compressive_strength = compressive_strength
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-9
use_custom_returnMap = true
use_custom_cto = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 2
ep_plastic_tolerance = 1E-6
plastic_models = cap
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random04
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/weak_plane_tensile/large_deform2.i)
# large strain with weak-plane normal rotating with mesh
# First rotate mesh 45deg about x axis
# Then apply stretch in the y=z direction.
# This should create a pure tensile load (no shear), which
# should return to the yield surface.
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Physics/SolidMechanics/QuasiStatic/all]
strain = FINITE
add_variables = true
generate_output = 'stress_xx stress_yy stress_yz stress_zz'
[]
[BCs]
# rotate:
# ynew = c*y + s*z. znew = -s*y + c*z
[bottomx]
type = FunctionDirichletBC
variable = disp_x
boundary = back
function = '0'
[]
[bottomy]
type = FunctionDirichletBC
variable = disp_y
boundary = back
function = '0.70710678*y+0.70710678*z-y'
[]
[bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = back
function = '-0.70710678*y+0.70710678*z-z'
[]
[topx]
type = FunctionDirichletBC
variable = disp_x
boundary = front
function = '0'
[]
[topy]
type = FunctionDirichletBC
variable = disp_y
boundary = front
function = '0.70710678*y+0.70710678*z-y+if(t>0,1,0)'
[]
[topz]
type = FunctionDirichletBC
variable = disp_z
boundary = front
function = '-0.70710678*y+0.70710678*z-z+if(t>0,1,0)'
[]
[]
[AuxVariables]
[yield_fcn]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[]
[]
[Postprocessors]
[s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[]
[s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[]
[s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[]
[s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[]
[f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[]
[]
[UserObjects]
[str]
type = SolidMechanicsHardeningConstant
value = 1.0E6
[]
[wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = str
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-5
[]
[]
[Materials]
[elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[]
[mc]
type = ComputeMultiPlasticityStress
plastic_models = wpt
transverse_direction = '0 0 1'
ep_plastic_tolerance = 1E-9
[]
[]
[Executioner]
start_time = -1
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
exodus = true
[]
(modules/solid_mechanics/test/tests/jacobian/cto17.i)
# Jacobian check for nonlinear, multi-surface plasticity.
# Returns to the plane of the tensile yield surface
#
# Plasticity models:
# Tensile with strength = 1MPa softening to 0.5MPa in 2E-2 strain
#
# Lame lambda = 0.5GPa. Lame mu = 1GPa
#
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./int1]
order = CONSTANT
family = MONOMIAL
[../]
[./int2]
order = CONSTANT
family = MONOMIAL
[../]
[./int0]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./int0]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int0
index = 0
[../]
[./int1]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int1
index = 1
[../]
[./int2]
type = MaterialStdVectorAux
property = plastic_yield_function
variable = int2
index = 2
[../]
[]
[Postprocessors]
[./max_int0]
type = ElementExtremeValue
variable = int0
outputs = console
[../]
[./max_int1]
type = ElementExtremeValue
variable = int1
outputs = console
[../]
[./max_int2]
type = ElementExtremeValue
variable = int2
outputs = console
[../]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console' [../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console' [../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console' [../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console' [../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0.5
internal_limit = 2E-2
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0E-6 # Note larger value
shift = 1.0E-6 # Note larger value
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.5E3 1E3'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '-1 0.1 0.2 0.1 15 -0.3 0.2 -0.3 0'
eigenstrain_name = ini_stress
[../]
[./multi]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile'
max_NR_iterations = 5
deactivation_scheme = 'safe'
min_stepsize = 1
tangent_operator = nonlinear
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
#petsc_options = '-snes_test_display'
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
[Outputs]
file_base = cto17
exodus = false
[]
(modules/solid_mechanics/test/tests/jacobian/cto21.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = SolidMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/small_deform4.i)
# apply repeated stretches in z direction, and smaller stretches in the x and y directions
# so that sigma_II = sigma_III,
# which means that lode angle = -30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.25E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.25E-6*y*sin(t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 50
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningExponential
value_0 = 0
value_residual = 0.8726646 # 50deg
rate = 3000.0
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4
mc_edge_smoother = 20
yield_function_tolerance = 1E-8
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 30
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform4
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/tensile/small_deform1.i)
# checking for small deformation
# A single element is stretched by 1E-6m in z direction, and by small amounts in x and y directions
# stress_zz = Youngs Modulus*Strain = 2E6*1E-6 = 2 Pa
# tensile_strength is set to 1Pa
# Then the final stress should return to the yeild surface and the maximum principal stress value should be 1pa.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Physics/SolidMechanics/QuasiStatic]
[./all]
add_variables = true
incremental = true
strain = finite
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_yz stress_zz'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0.1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0.2E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./mc]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
yield_function_tolerance = 1E-6
tensile_tip_smoother = 0.0
internal_constraint_tolerance = 1E-5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 2.0E6'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-5
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '1 2 3 2 -4 -5 3 -5 10'
debug_jac_at_pm = 0.8
debug_jac_at_intnl = 1
debug_stress_change = 1E-8
debug_pm_change = 1E-5
debug_intnl_change = 1E-5
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/multi/paper3.i)
# This runs the third example models described in the 'MultiSurface' plasticity paper
# Just change the deactivation_scheme
#
# Plasticity models:
# Mohr-Coulomb with cohesion = 40MPa, friction angle = 35deg, dilation angle = 5deg
# Tensile with strength = 1MPa
# WeakPlaneTensile with strength = 1000Pa
# WeakPlaneShear with cohesion = 0.1MPa and friction angle = 25, dilation angle = 5deg
#
# Lame lambda = 1.2GPa. Lame mu = 1.2GPa (Young = 3GPa, poisson = 0.5)
#
# A line of elements is perturbed randomly, and return to the yield surface at each quadpoint is checked
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1000
ny = 125
nz = 1
xmin = 0
xmax = 1000
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[GlobalParams]
volumetric_locking_correction=true
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./linesearch]
order = CONSTANT
family = MONOMIAL
[../]
[./ld]
order = CONSTANT
family = MONOMIAL
[../]
[./constr_added]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./linesearch]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = linesearch
[../]
[./ld]
type = MaterialRealAux
property = plastic_linear_dependence_encountered
variable = ld
[../]
[./constr_added]
type = MaterialRealAux
property = plastic_constraints_added
variable = constr_added
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./max_iter]
type = ElementExtremeValue
variable = iter
outputs = console
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console csv'
[../]
[./av_linesearch]
type = ElementAverageValue
variable = linesearch
outputs = 'console csv'
[../]
[./av_ld]
type = ElementAverageValue
variable = ld
outputs = 'console csv'
[../]
[./av_constr_added]
type = ElementAverageValue
variable = constr_added
outputs = 'console csv'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4E7
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
yield_function_tolerance = 1.0
shift = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./mc_smooth]
type = SolidMechanicsPlasticMohrCoulomb
cohesion = mc_coh
friction_angle = mc_phi
dilation_angle = mc_psi
mc_tip_smoother = 4E6
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./ts]
type = SolidMechanicsHardeningConstant
value = 1E6
[../]
[./tensile]
type = SolidMechanicsPlasticTensileMulti
tensile_strength = ts
yield_function_tolerance = 1.0
shift = 1.0
internal_constraint_tolerance = 1.0E-7
use_custom_returnMap = false
use_custom_cto = false
[../]
[./tensile_smooth]
type = SolidMechanicsPlasticTensile
tensile_strength = ts
tensile_tip_smoother = 1E5
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./wpt_str]
type = SolidMechanicsHardeningConstant
value = 1.0E3
[../]
[./wpt]
type = SolidMechanicsPlasticWeakPlaneTensile
tensile_strength = wpt_str
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[./wps_c]
type = SolidMechanicsHardeningConstant
value = 1.0E5
[../]
[./wps_tan_phi]
type = SolidMechanicsHardeningConstant
value = 0.466
[../]
[./wps_tan_psi]
type = SolidMechanicsHardeningConstant
value = 0.087
[../]
[./wps]
type = SolidMechanicsPlasticWeakPlaneShear
cohesion = wps_c
tan_friction_angle = wps_tan_phi
tan_dilation_angle = wps_tan_psi
smoother = 1.0E4
yield_function_tolerance = 1.0
internal_constraint_tolerance = 1.0E-7
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '1.2E9 1.2E9'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./multi]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-7
plastic_models = 'tensile_smooth mc_smooth wpt wps'
max_NR_iterations = 30
specialIC = 'none'
deactivation_scheme = 'optimized'
min_stepsize = 1E-6
max_stepsize_for_dumb = 1E-2
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = '1 1 1 1'
debug_jac_at_intnl = '1 1 1 1'
debug_stress_change = 1E1
debug_pm_change = '1E-6 1E-6 1E-6 1E-6'
debug_intnl_change = '1E-6 1E-6 1E-6 1E-6'
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = paper3
exodus = false
csv = true
[]
(modules/solid_mechanics/test/tests/mohr_coulomb/planar1.i)
# apply uniform stretch in x, y and z directions.
# With cohesion = 10, friction_angle = 60deg, the
# algorithm should return to
# sigma_m = 10*Cos(60)/Sin(60) = 5.773503
# using planar surfaces (not smoothed)
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '1.1E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1.2E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[]
[UserObjects]
[./coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 1.04719756
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.1
[../]
[./mc]
type = SolidMechanicsPlasticMohrCoulombMulti
cohesion = coh
friction_angle = phi
dilation_angle = psi
yield_function_tolerance = 1E-3
shift = 1E-12
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-10
deactivation_scheme = safe
plastic_models = mc
debug_fspb = crash
debug_jac_at_stress = '10 0 0 0 10 0 0 0 10'
debug_jac_at_pm = 1
debug_jac_at_intnl = 1
debug_stress_change = 1E-5
debug_pm_change = 1E-6
debug_intnl_change = 1E-6
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = planar1
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/j2_plasticity/hard2.i)
# UserObject J2 test, with hardening, but with rate=1E6
# apply uniform compression in x direction to give
# trial stress_xx = 5, so sqrt(3*J2) = 5
# with zero Poisson's ratio, lambda_mu = 1E6, and strength=2, strength_residual=1,
# the equations that we need to solve are:
#
# stress_yy = stress_zz [because of the symmetry of the problem: to keep Lode angle constant]
# stress_xx - stress_yy = 1 + (2 - 1)*exp(-0.5*(1E6*q)^2) [yield_fcn = 0]
# stress_xx + stress_yy + stress_zz = 5 [mean stress constant]
# q = gamma
# stress_xx = 1E6*2*gamma*(stress_xx - 5/3)*sqrt(3)/2/sqrt(J2), where sqrt(J2) = (1 + (2 - 1)*exp(-0.5*(1E6*q)^2))/Sqrt(3)
# so RHS = 1E6*2*gamma*(stress_xx - 5/3)*3/2/(stress_xx - stress_yy)
#
# stress_xx = 2.672
# stress_yy = 1.164
# q = 1.164E-6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '2.5E-6*x'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0E-6*y'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0E-6*z'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./f]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = f
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./intnl]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = intnl
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = f
[../]
[./iter]
type = PointValue
point = '0 0 0'
variable = iter
[../]
[./intnl]
type = PointValue
point = '0 0 0'
variable = intnl
[../]
[]
[UserObjects]
[./str]
type = SolidMechanicsHardeningGaussian
value_0 = 2
value_residual = 1
rate = 1E12
[../]
[./j2]
type = SolidMechanicsPlasticJ2
yield_strength = str
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E6'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-9
plastic_models = j2
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = hard2
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_edge.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = inner_edge
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_inner_edge
exodus = false
[./csv]
type = CSV
[../]
[]