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FiniteStrainCrystalPlasticity Class Reference

#include <FiniteStrainCrystalPlasticity.h>

Inheritance diagram for FiniteStrainCrystalPlasticity:
[legend]

Public Member Functions

 FiniteStrainCrystalPlasticity (const InputParameters &parameters)
 

Protected Member Functions

virtual void computeQpStress ()
 This function updates the stress at a quadrature point. More...
 
virtual void computeQpElasticityTensor ()
 This function updates the elasticity tensor at a quadrature point. More...
 
virtual void initQpStatefulProperties ()
 This function initializes the stateful properties such as stress, plastic deformation gradient, slip system resistances, etc. More...
 
virtual void calc_resid_jacob (RankTwoTensor &, RankFourTensor &)
 This function calls the residual and jacobian functions used in the stress update algorithm. More...
 
virtual void getSlipIncrements ()
 This function updates the slip increments. More...
 
virtual void update_slip_system_resistance ()
 This function updates the slip system resistances. More...
 
virtual void updateGss ()
 This function updates the slip system resistances. More...
 
virtual void getSlipSystems ()
 This function reads slip system from file - see test. More...
 
virtual void assignSlipSysRes ()
 This function assign initial values of slip system resistances/internal variables read from getSlipSystems(). More...
 
virtual void readFileInitSlipSysRes ()
 This function read slip system resistances from file - see test. More...
 
virtual void getInitSlipSysRes ()
 This function assign slip system resistances - see test. More...
 
virtual void readFileFlowRateParams ()
 This function read flow rate parameters from file - see test. More...
 
virtual void getFlowRateParams ()
 This function assign flow rate parameters - see test. More...
 
virtual void readFileHardnessParams ()
 This function read hardness parameters from file. More...
 
virtual void getHardnessParams ()
 This function assign flow rate parameters from .i file - see test. More...
 
virtual void initSlipSysProps ()
 This function initializes slip system resistances. More...
 
virtual void initAdditionalProps ()
 This function initializes additional parameters. More...
 
virtual void preSolveQp ()
 This function set variables for stress and internal variable solve. More...
 
virtual void solveQp ()
 This function solves stress and internal variables. More...
 
virtual void postSolveQp ()
 This function update stress and internal variable after solve. More...
 
virtual void preSolveStatevar ()
 This function set variables for internal variable solve. More...
 
virtual void solveStatevar ()
 This function solves internal variables. More...
 
virtual void postSolveStatevar ()
 This function update internal variable after solve. More...
 
virtual void preSolveStress ()
 This function set variables for stress solve. More...
 
virtual void solveStress ()
 This function solves for stress, updates plastic deformation gradient. More...
 
virtual void postSolveStress ()
 This function update stress and plastic deformation gradient after solve. More...
 
virtual void calcResidual (RankTwoTensor &)
 This function calculate stress residual. More...
 
virtual void calcJacobian (RankFourTensor &)
 This function calculate jacobian. More...
 
virtual RankFourTensor calcTangentModuli ()
 This function calculate the tangent moduli for preconditioner. More...
 
virtual RankFourTensor elasticTangentModuli ()
 This function calculate the elastic tangent moduli for preconditioner. More...
 
virtual RankFourTensor elastoPlasticTangentModuli ()
 This function calculate the exact tangent moduli for preconditioner. More...
 
RankTwoTensor get_current_rotation (const RankTwoTensor &a)
 This function perform RU decomposition to obtain the rotation tensor. More...
 
RankTwoTensor getMatRot (const RankTwoTensor &a)
 This function perform RU decomposition to obtain the rotation tensor. More...
 
void calc_schmid_tensor ()
 This function calculate the Schmid tensor. More...
 
bool line_search_update (const Real rnorm_prev, const RankTwoTensor)
 This function performs the line search update. More...
 
void internalVariableUpdateNRiteration ()
 This function updates internal variables after each NewTon Raphson iteration (_fp_inv) More...
 
virtual void computeQpProperties () override
 
void addQpInitialStress ()
 InitialStress Deprecation: remove this method. More...
 

Protected Attributes

const unsigned int _nss
 Number of slip system resistance. More...
 
std::vector< Real > _gprops
 
std::vector< Real > _hprops
 
std::vector< Real > _flowprops
 
std::string _slip_sys_file_name
 File should contain slip plane normal and direction. See test. More...
 
std::string _slip_sys_res_prop_file_name
 File should contain initial values of the slip system resistances. More...
 
std::string _slip_sys_flow_prop_file_name
 File should contain values of the flow rate equation parameters. More...
 
std::string _slip_sys_hard_prop_file_name
 The hardening parameters in this class are read from .i file. The user can override to read from file. More...
 
Real _rtol
 Stress residual equation relative tolerance. More...
 
Real _abs_tol
 Stress residual equation absolute tolerance. More...
 
Real _gtol
 Internal variable update equation tolerance. More...
 
Real _slip_incr_tol
 Slip increment tolerance. More...
 
unsigned int _maxiter
 Maximum number of iterations for stress update. More...
 
unsigned int _maxiterg
 Maximum number of iterations for internal variable update. More...
 
unsigned int _num_slip_sys_flowrate_props
 Number of slip system flow rate parameters. More...
 
MooseEnum _tan_mod_type
 Type of tangent moduli calculation. More...
 
MooseEnum _intvar_read_type
 Read from options for initial values of internal variables. More...
 
unsigned int _num_slip_sys_props
 Number of slip system specific properties provided in the file containing slip system normals and directions. More...
 
bool _gen_rndm_stress_flag
 
bool _input_rndm_scale_var
 Input option for scaling variable to generate random stress when convergence fails. More...
 
Real _rndm_scale_var
 Scaling value. More...
 
unsigned int _rndm_seed
 Seed value. More...
 
unsigned int _max_substep_iter
 Maximum number of substep iterations. More...
 
bool _use_line_search
 Flag to activate line serach. More...
 
Real _min_lsrch_step
 Minimum line search step size. More...
 
Real _lsrch_tol
 Line search bisection method tolerance. More...
 
unsigned int _lsrch_max_iter
 Line search bisection method maximum iteration number. More...
 
MooseEnum _lsrch_method
 
MaterialProperty< RankTwoTensor > & _fp
 
const MaterialProperty< RankTwoTensor > & _fp_old
 
MaterialProperty< RankTwoTensor > & _pk2
 
const MaterialProperty< RankTwoTensor > & _pk2_old
 
MaterialProperty< RankTwoTensor > & _lag_e
 
const MaterialProperty< RankTwoTensor > & _lag_e_old
 
MaterialProperty< std::vector< Real > > & _gss
 
const MaterialProperty< std::vector< Real > > & _gss_old
 
MaterialProperty< Real > & _acc_slip
 
const MaterialProperty< Real > & _acc_slip_old
 
MaterialProperty< RankTwoTensor > & _update_rot
 
const MaterialProperty< RankTwoTensor > & _deformation_gradient
 
const MaterialProperty< RankTwoTensor > & _deformation_gradient_old
 
const MaterialProperty< RankFourTensor > & _elasticity_tensor
 
const MaterialProperty< RankTwoTensor > & _crysrot
 
DenseVector< Real > _mo
 
DenseVector< Real > _no
 
DenseVector< Real > _a0
 
DenseVector< Real > _xm
 
Real _h0
 
Real _tau_sat
 
Real _tau_init
 
Real _r
 
RankTwoTensor _dfgrd_tmp
 
RankTwoTensor _fe
 
RankTwoTensor _fp_old_inv
 
RankTwoTensor _fp_inv
 
RankTwoTensor _fp_prev_inv
 
DenseVector< Real > _slip_incr
 
DenseVector< Real > _tau
 
DenseVector< Real > _dslipdtau
 
std::vector< RankTwoTensor > _s0
 
RankTwoTensor _pk2_tmp
 
RankTwoTensor _pk2_tmp_old
 
Real _accslip_tmp
 
Real _accslip_tmp_old
 
std::vector< Real > _gss_tmp
 
std::vector< Real > _gss_tmp_old
 
DenseVector< Real > _slip_sys_props
 
DenseMatrix< Real > _dgss_dsliprate
 
bool _read_from_slip_sys_file
 
bool _err_tol
 
RankTwoTensor _delta_dfgrd
 Flag to check whether convergence is achieved. More...
 
RankTwoTensor _dfgrd_tmp_old
 
Real _dfgrd_scale_factor
 Scales the substepping increment to obtain deformation gradient at a substep iteration. More...
 
bool _first_step_iter
 Flags to reset variables and reinitialize variables. More...
 
bool _last_step_iter
 
bool _first_substep
 
const std::string _base_name
 
const std::string _elasticity_tensor_name
 
const MaterialProperty< RankTwoTensor > & _mechanical_strain
 
MaterialProperty< RankTwoTensor > & _stress
 
MaterialProperty< RankTwoTensor > & _elastic_strain
 
const MaterialProperty< RankTwoTensor > & _extra_stress
 Extra stress tensor. More...
 
std::vector< Function * > _initial_stress_fcn
 initial stress components More...
 
MaterialProperty< RankFourTensor > & _Jacobian_mult
 derivative of stress w.r.t. strain (_dstress_dstrain) More...
 
const bool _store_stress_old
 Parameter which decides whether to store old stress. This is required for HHT time integration and Rayleigh damping. More...
 
const bool _initial_stress_provided
 Whether initial stress was provided. InitialStress Deprecation: remove this. More...
 
MaterialProperty< RankTwoTensor > * _initial_stress
 Initial stress, if provided. InitialStress Deprecation: remove this. More...
 
const MaterialProperty< RankTwoTensor > * _initial_stress_old
 Old value of initial stress, which is needed to correctly implement finite-strain rotations. InitialStress Deprecation: remove this. More...
 

Detailed Description

Definition at line 24 of file FiniteStrainCrystalPlasticity.h.

Constructor & Destructor Documentation

FiniteStrainCrystalPlasticity::FiniteStrainCrystalPlasticity ( const InputParameters &  parameters)

Definition at line 94 of file FiniteStrainCrystalPlasticity.C.

95  : ComputeStressBase(parameters),
96  _nss(getParam<int>("nss")),
97  _gprops(getParam<std::vector<Real>>("gprops")),
98  _hprops(getParam<std::vector<Real>>("hprops")),
99  _flowprops(getParam<std::vector<Real>>("flowprops")),
100  _slip_sys_file_name(getParam<FileName>("slip_sys_file_name")),
101  _slip_sys_res_prop_file_name(getParam<FileName>("slip_sys_res_prop_file_name")),
102  _slip_sys_flow_prop_file_name(getParam<FileName>("slip_sys_flow_prop_file_name")),
103  _slip_sys_hard_prop_file_name(getParam<FileName>("slip_sys_hard_prop_file_name")),
104  _rtol(getParam<Real>("rtol")),
105  _abs_tol(getParam<Real>("abs_tol")),
106  _gtol(getParam<Real>("gtol")),
107  _slip_incr_tol(getParam<Real>("slip_incr_tol")),
108  _maxiter(getParam<unsigned int>("maxiter")),
109  _maxiterg(getParam<unsigned int>("maxitergss")),
110  _num_slip_sys_flowrate_props(getParam<unsigned int>("num_slip_sys_flowrate_props")),
111  _tan_mod_type(getParam<MooseEnum>("tan_mod_type")),
112  _intvar_read_type(getParam<MooseEnum>("intvar_read_type")),
113  _num_slip_sys_props(getParam<unsigned int>("num_slip_sys_props")),
114  _gen_rndm_stress_flag(getParam<bool>("gen_random_stress_flag")),
115  _input_rndm_scale_var(getParam<bool>("input_random_scaling_var")),
116  _rndm_scale_var(getParam<Real>("random_scaling_var")),
117  _rndm_seed(getParam<unsigned int>("random_seed")),
118  _max_substep_iter(getParam<unsigned int>("maximum_substep_iteration")),
119  _use_line_search(getParam<bool>("use_line_search")),
120  _min_lsrch_step(getParam<Real>("min_line_search_step_size")),
121  _lsrch_tol(getParam<Real>("line_search_tol")),
122  _lsrch_max_iter(getParam<unsigned int>("line_search_maxiter")),
123  _lsrch_method(getParam<MooseEnum>("line_search_method")),
124  _fp(declareProperty<RankTwoTensor>("fp")), // Plastic deformation gradient
125  _fp_old(getMaterialPropertyOld<RankTwoTensor>(
126  "fp")), // Plastic deformation gradient of previous increment
127  _pk2(declareProperty<RankTwoTensor>("pk2")), // 2nd Piola Kirchoff Stress
128  _pk2_old(getMaterialPropertyOld<RankTwoTensor>(
129  "pk2")), // 2nd Piola Kirchoff Stress of previous increment
130  _lag_e(declareProperty<RankTwoTensor>("lage")), // Lagrangian strain
131  _lag_e_old(
132  getMaterialPropertyOld<RankTwoTensor>("lage")), // Lagrangian strain of previous increment
133  _gss(declareProperty<std::vector<Real>>("gss")), // Slip system resistances
134  _gss_old(getMaterialPropertyOld<std::vector<Real>>(
135  "gss")), // Slip system resistances of previous increment
136  _acc_slip(declareProperty<Real>("acc_slip")), // Accumulated slip
138  getMaterialPropertyOld<Real>("acc_slip")), // Accumulated alip of previous increment
139  _update_rot(declareProperty<RankTwoTensor>(
140  "update_rot")), // Rotation tensor considering material rotation and crystal orientation
141  _deformation_gradient(getMaterialProperty<RankTwoTensor>("deformation_gradient")),
142  _deformation_gradient_old(getMaterialPropertyOld<RankTwoTensor>("deformation_gradient")),
143  _elasticity_tensor(getMaterialProperty<RankFourTensor>("elasticity_tensor")),
144  _crysrot(getMaterialProperty<RankTwoTensor>("crysrot")),
145  _mo(_nss * LIBMESH_DIM),
146  _no(_nss * LIBMESH_DIM),
147  _slip_incr(_nss),
148  _tau(_nss),
149  _dslipdtau(_nss),
150  _s0(_nss),
151  _gss_tmp(_nss),
154 {
155  _err_tol = false;
156 
157  if (_num_slip_sys_props > 0)
159 
160  _pk2_tmp.zero();
161  _delta_dfgrd.zero();
162 
163  _first_step_iter = false;
164  _last_step_iter = false;
165  // Initialize variables in the first iteration of substepping
166  _first_substep = true;
167 
168  _read_from_slip_sys_file = false;
169  if (_intvar_read_type == "slip_sys_file")
171 
172  if (_read_from_slip_sys_file && !(_num_slip_sys_props > 0))
173  mooseError("Crystal Plasticity Error: Specify number of internal variable's initial values to "
174  "be read from slip system file");
175 
176  getSlipSystems();
177 
178  RankTwoTensor::initRandom(_rndm_seed);
179 }
const MaterialProperty< RankTwoTensor > & _pk2_old
MaterialProperty< RankTwoTensor > & _lag_e
const MaterialProperty< RankTwoTensor > & _deformation_gradient
bool _input_rndm_scale_var
Input option for scaling variable to generate random stress when convergence fails.
bool _use_line_search
Flag to activate line serach.
const MaterialProperty< std::vector< Real > > & _gss_old
const MaterialProperty< RankFourTensor > & _elasticity_tensor
MaterialProperty< RankTwoTensor > & _pk2
std::string _slip_sys_flow_prop_file_name
File should contain values of the flow rate equation parameters.
unsigned int _num_slip_sys_flowrate_props
Number of slip system flow rate parameters.
const MaterialProperty< RankTwoTensor > & _fp_old
Real _rtol
Stress residual equation relative tolerance.
std::string _slip_sys_hard_prop_file_name
The hardening parameters in this class are read from .i file. The user can override to read from file...
unsigned int _maxiter
Maximum number of iterations for stress update.
const unsigned int _nss
Number of slip system resistance.
RankTwoTensor _delta_dfgrd
Flag to check whether convergence is achieved.
MaterialProperty< std::vector< Real > > & _gss
const MaterialProperty< RankTwoTensor > & _deformation_gradient_old
const MaterialProperty< RankTwoTensor > & _crysrot
MaterialProperty< RankTwoTensor > & _fp
unsigned int _lsrch_max_iter
Line search bisection method maximum iteration number.
Real _gtol
Internal variable update equation tolerance.
std::string _slip_sys_res_prop_file_name
File should contain initial values of the slip system resistances.
const MaterialProperty< RankTwoTensor > & _lag_e_old
ComputeStressBase(const InputParameters &parameters)
MooseEnum _tan_mod_type
Type of tangent moduli calculation.
Real _lsrch_tol
Line search bisection method tolerance.
virtual void getSlipSystems()
This function reads slip system from file - see test.
unsigned int _num_slip_sys_props
Number of slip system specific properties provided in the file containing slip system normals and dir...
unsigned int _max_substep_iter
Maximum number of substep iterations.
bool _first_step_iter
Flags to reset variables and reinitialize variables.
MaterialProperty< RankTwoTensor > & _update_rot
Real _abs_tol
Stress residual equation absolute tolerance.
unsigned int _maxiterg
Maximum number of iterations for internal variable update.
const MaterialProperty< Real > & _acc_slip_old
MooseEnum _intvar_read_type
Read from options for initial values of internal variables.
Real _min_lsrch_step
Minimum line search step size.
std::string _slip_sys_file_name
File should contain slip plane normal and direction. See test.
Real _slip_incr_tol
Slip increment tolerance.

Member Function Documentation

void ComputeStressBase::addQpInitialStress ( )
protectedinherited

InitialStress Deprecation: remove this method.

Adds initial stress, if it is provided, to _stress[_qp]. This function should NOT be used if you calculate stress using

stress = stress_old + elasticity * strain_increment

because stress_old will already include initial stress. However this function SHOULD be used if your code uses

stress = elasticity * (elastic_strain_old + strain_increment) or stress = elasticity * elastic_strain

since in these cases the elastic_strain and elastic_strain_old will not include any contribution from initial stress.

Definition at line 112 of file ComputeStressBase.C.

Referenced by ComputeLinearElasticStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeSmearedCrackingStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStressIntermediateConfiguration(), ComputeStressBase::initQpStatefulProperties(), ComputeMultipleInelasticStress::updateQpState(), and ComputeMultipleInelasticStress::updateQpStateSingleModel().

113 {
115  _stress[_qp] += (*_initial_stress)[_qp];
116 }
MaterialProperty< RankTwoTensor > & _stress
const bool _initial_stress_provided
Whether initial stress was provided. InitialStress Deprecation: remove this.
void FiniteStrainCrystalPlasticity::assignSlipSysRes ( )
protectedvirtual

This function assign initial values of slip system resistances/internal variables read from getSlipSystems().

Definition at line 227 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

228 {
229  _gss[_qp].resize(_nss);
230 
231  for (unsigned int i = 0; i < _nss; ++i)
232  _gss[_qp][i] = _slip_sys_props(i);
233 }
const unsigned int _nss
Number of slip system resistance.
MaterialProperty< std::vector< Real > > & _gss
void FiniteStrainCrystalPlasticity::calc_resid_jacob ( RankTwoTensor &  resid,
RankFourTensor &  jac 
)
protectedvirtual

This function calls the residual and jacobian functions used in the stress update algorithm.

Definition at line 875 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveStress().

876 {
877  calcResidual(resid);
878  if (_err_tol)
879  return;
880  calcJacobian(jac);
881 }
virtual void calcJacobian(RankFourTensor &)
This function calculate jacobian.
virtual void calcResidual(RankTwoTensor &)
This function calculate stress residual.
void FiniteStrainCrystalPlasticity::calc_schmid_tensor ( )
protected

This function calculate the Schmid tensor.

Definition at line 1046 of file FiniteStrainCrystalPlasticity.C.

Referenced by preSolveQp().

1047 {
1048  DenseVector<Real> mo(LIBMESH_DIM * _nss), no(LIBMESH_DIM * _nss);
1049 
1050  // Update slip direction and normal with crystal orientation
1051  for (unsigned int i = 0; i < _nss; ++i)
1052  {
1053  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1054  {
1055  mo(i * LIBMESH_DIM + j) = 0.0;
1056  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
1057  mo(i * LIBMESH_DIM + j) =
1058  mo(i * LIBMESH_DIM + j) + _crysrot[_qp](j, k) * _mo(i * LIBMESH_DIM + k);
1059  }
1060 
1061  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1062  {
1063  no(i * LIBMESH_DIM + j) = 0.0;
1064  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
1065  no(i * LIBMESH_DIM + j) =
1066  no(i * LIBMESH_DIM + j) + _crysrot[_qp](j, k) * _no(i * LIBMESH_DIM + k);
1067  }
1068  }
1069 
1070  // Calculate Schmid tensor and resolved shear stresses
1071  for (unsigned int i = 0; i < _nss; ++i)
1072  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1073  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
1074  _s0[i](j, k) = mo(i * LIBMESH_DIM + j) * no(i * LIBMESH_DIM + k);
1075 }
const unsigned int _nss
Number of slip system resistance.
const MaterialProperty< RankTwoTensor > & _crysrot
void FiniteStrainCrystalPlasticity::calcJacobian ( RankFourTensor &  jac)
protectedvirtual

This function calculate jacobian.

Definition at line 924 of file FiniteStrainCrystalPlasticity.C.

Referenced by calc_resid_jacob().

925 {
926  RankFourTensor dfedfpinv, deedfe, dfpinvdpk2;
927 
928  std::vector<RankTwoTensor> dtaudpk2(_nss), dfpinvdslip(_nss);
929 
930  for (unsigned int i = 0; i < _nss; ++i)
931  {
932  dtaudpk2[i] = _s0[i];
933  dfpinvdslip[i] = -_fp_old_inv * _s0[i];
934  }
935 
936  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
937  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
938  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
939  dfedfpinv(i, j, k, j) = _dfgrd_tmp(i, k);
940 
941  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
942  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
943  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
944  {
945  deedfe(i, j, k, i) = deedfe(i, j, k, i) + _fe(k, j) * 0.5;
946  deedfe(i, j, k, j) = deedfe(i, j, k, j) + _fe(k, i) * 0.5;
947  }
948 
949  for (unsigned int i = 0; i < _nss; ++i)
950  dfpinvdpk2 += (dfpinvdslip[i] * _dslipdtau(i)).outerProduct(dtaudpk2[i]);
951 
952  jac =
953  RankFourTensor::IdentityFour() - (_elasticity_tensor[_qp] * deedfe * dfedfpinv * dfpinvdpk2);
954 }
const MaterialProperty< RankFourTensor > & _elasticity_tensor
const unsigned int _nss
Number of slip system resistance.
void FiniteStrainCrystalPlasticity::calcResidual ( RankTwoTensor &  resid)
protectedvirtual

This function calculate stress residual.

Definition at line 884 of file FiniteStrainCrystalPlasticity.C.

Referenced by calc_resid_jacob(), and line_search_update().

885 {
886  RankTwoTensor iden, ce, ee, ce_pk2, eqv_slip_incr, pk2_new;
887 
888  iden.zero();
889  iden.addIa(1.0);
890 
891  _fe = _dfgrd_tmp * _fp_prev_inv; // _fp_inv ==> _fp_prev_inv
892 
893  ce = _fe.transpose() * _fe;
894  ce_pk2 = ce * _pk2_tmp;
895  ce_pk2 = ce_pk2 / _fe.det();
896 
897  // Calculate Schmid tensor and resolved shear stresses
898  for (unsigned int i = 0; i < _nss; ++i)
899  _tau(i) = ce_pk2.doubleContraction(_s0[i]);
900 
901  getSlipIncrements(); // Calculate dslip,dslipdtau
902 
903  if (_err_tol)
904  return;
905 
906  eqv_slip_incr.zero();
907  for (unsigned int i = 0; i < _nss; ++i)
908  eqv_slip_incr += _s0[i] * _slip_incr(i);
909 
910  eqv_slip_incr = iden - eqv_slip_incr;
911  _fp_inv = _fp_old_inv * eqv_slip_incr;
912  _fe = _dfgrd_tmp * _fp_inv;
913 
914  ce = _fe.transpose() * _fe;
915  ee = ce - iden;
916  ee *= 0.5;
917 
918  pk2_new = _elasticity_tensor[_qp] * ee;
919 
920  resid = _pk2_tmp - pk2_new;
921 }
const MaterialProperty< RankFourTensor > & _elasticity_tensor
const unsigned int _nss
Number of slip system resistance.
virtual void getSlipIncrements()
This function updates the slip increments.
RankFourTensor FiniteStrainCrystalPlasticity::calcTangentModuli ( )
protectedvirtual

This function calculate the tangent moduli for preconditioner.

Default is the elastic stiffness matrix. Exact jacobian is currently implemented. tan_mod_type can be modified to exact in .i file to turn it on.

Definition at line 1029 of file FiniteStrainCrystalPlasticity.C.

Referenced by postSolveQp().

1030 {
1031  RankFourTensor tan_mod;
1032 
1033  switch (_tan_mod_type)
1034  {
1035  case 0:
1036  tan_mod = elastoPlasticTangentModuli();
1037  break;
1038  default:
1039  tan_mod = elasticTangentModuli();
1040  }
1041 
1042  return tan_mod;
1043 }
virtual RankFourTensor elastoPlasticTangentModuli()
This function calculate the exact tangent moduli for preconditioner.
virtual RankFourTensor elasticTangentModuli()
This function calculate the elastic tangent moduli for preconditioner.
MooseEnum _tan_mod_type
Type of tangent moduli calculation.
void FiniteStrainCrystalPlasticity::computeQpElasticityTensor ( )
protectedvirtual

This function updates the elasticity tensor at a quadrature point.

Presently void.

Definition at line 1024 of file FiniteStrainCrystalPlasticity.C.

1025 {
1026 }
void ComputeStressBase::computeQpProperties ( )
overrideprotectedvirtualinherited

Reimplemented in ComputeBirchMurnaghanEquationOfStress, and ComputeStressEosBase.

Definition at line 99 of file ComputeStressBase.C.

100 {
101  // InitialStress Deprecation: remove the following 2 lines
103  (*_initial_stress)[_qp] = (*_initial_stress_old)[_qp];
104 
105  computeQpStress();
106 
107  // Add in extra stress
108  _stress[_qp] += _extra_stress[_qp];
109 }
virtual void computeQpStress()=0
MaterialProperty< RankTwoTensor > & _stress
const bool _initial_stress_provided
Whether initial stress was provided. InitialStress Deprecation: remove this.
const MaterialProperty< RankTwoTensor > & _extra_stress
Extra stress tensor.
void FiniteStrainCrystalPlasticity::computeQpStress ( )
protectedvirtual

This function updates the stress at a quadrature point.

Solves stress residual equation using NR.

Updates slip system resistances iteratively.

Implements ComputeStressBase.

Definition at line 486 of file FiniteStrainCrystalPlasticity.C.

487 {
488  unsigned int substep_iter = 1; // Depth of substepping; Limited to maximum substep iteration
489  unsigned int num_substep = 1; // Calculated from substep_iter as 2^substep_iter
490  Real dt_original = _dt; // Stores original _dt; Reset at the end of solve
491  _first_substep = true; // Initialize variables at substep_iter = 1
492 
493  if (_max_substep_iter > 1)
494  {
496  if (_dfgrd_tmp_old.det() == 0)
497  _dfgrd_tmp_old.addIa(1.0);
498 
500  _err_tol = true; // Indicator to continue substepping
501  }
502 
503  // Substepping loop
504  while (_err_tol && _max_substep_iter > 1)
505  {
506  _dt = dt_original / num_substep;
507 
508  for (unsigned int istep = 0; istep < num_substep; ++istep)
509  {
510  _first_step_iter = false;
511  if (istep == 0)
512  _first_step_iter = true;
513 
514  _last_step_iter = false;
515  if (istep == num_substep - 1)
516  _last_step_iter = true;
517 
518  _dfgrd_scale_factor = (static_cast<Real>(istep) + 1) / num_substep;
519 
520  preSolveQp();
521  solveQp();
522 
523  if (_err_tol)
524  {
525  substep_iter++;
526  num_substep *= 2;
527  break;
528  }
529  }
530 
531  _first_substep = false; // Prevents reinitialization
532  _dt = dt_original; // Resets dt
533 
534 #ifdef DEBUG
535  if (substep_iter > _max_substep_iter)
536  mooseWarning("FiniteStrainCrystalPlasticity: Failure with substepping");
537 #endif
538 
539  if (!_err_tol || substep_iter > _max_substep_iter)
540  postSolveQp(); // Evaluate variables after successful solve or indicate failure
541  }
542 
543  // No substepping
544  if (_max_substep_iter == 1)
545  {
546  preSolveQp();
547  solveQp();
548  postSolveQp();
549  }
550 }
const MaterialProperty< RankTwoTensor > & _deformation_gradient
Real _dfgrd_scale_factor
Scales the substepping increment to obtain deformation gradient at a substep iteration.
RankTwoTensor _delta_dfgrd
Flag to check whether convergence is achieved.
const MaterialProperty< RankTwoTensor > & _deformation_gradient_old
virtual void postSolveQp()
This function update stress and internal variable after solve.
unsigned int _max_substep_iter
Maximum number of substep iterations.
bool _first_step_iter
Flags to reset variables and reinitialize variables.
virtual void solveQp()
This function solves stress and internal variables.
virtual void preSolveQp()
This function set variables for stress and internal variable solve.
RankFourTensor FiniteStrainCrystalPlasticity::elasticTangentModuli ( )
protectedvirtual

This function calculate the elastic tangent moduli for preconditioner.

Definition at line 1117 of file FiniteStrainCrystalPlasticity.C.

Referenced by calcTangentModuli().

1118 {
1119  return _elasticity_tensor[_qp]; // update jacobian_mult
1120 }
const MaterialProperty< RankFourTensor > & _elasticity_tensor
RankFourTensor FiniteStrainCrystalPlasticity::elastoPlasticTangentModuli ( )
protectedvirtual

This function calculate the exact tangent moduli for preconditioner.

Definition at line 1078 of file FiniteStrainCrystalPlasticity.C.

Referenced by calcTangentModuli().

1079 {
1080  RankFourTensor tan_mod;
1081  RankTwoTensor pk2fet, fepk2;
1082  RankFourTensor deedfe, dsigdpk2dfe;
1083 
1084  // Fill in the matrix stiffness material property
1085 
1086  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
1087  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1088  for (unsigned int k = 0; k < LIBMESH_DIM; ++k)
1089  {
1090  deedfe(i, j, k, i) = deedfe(i, j, k, i) + _fe(k, j) * 0.5;
1091  deedfe(i, j, k, j) = deedfe(i, j, k, j) + _fe(k, i) * 0.5;
1092  }
1093 
1094  dsigdpk2dfe = _fe.mixedProductIkJl(_fe) * _elasticity_tensor[_qp] * deedfe;
1095 
1096  pk2fet = _pk2_tmp * _fe.transpose();
1097  fepk2 = _fe * _pk2_tmp;
1098 
1099  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
1100  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1101  for (unsigned int l = 0; l < LIBMESH_DIM; ++l)
1102  {
1103  tan_mod(i, j, i, l) = tan_mod(i, j, i, l) + pk2fet(l, j);
1104  tan_mod(i, j, j, l) = tan_mod(i, j, j, l) + fepk2(i, l);
1105  }
1106 
1107  tan_mod += dsigdpk2dfe;
1108 
1109  Real je = _fe.det();
1110  if (je > 0.0)
1111  tan_mod /= je;
1112 
1113  return tan_mod;
1114 }
const MaterialProperty< RankFourTensor > & _elasticity_tensor
RankTwoTensor FiniteStrainCrystalPlasticity::get_current_rotation ( const RankTwoTensor &  a)
protected

This function perform RU decomposition to obtain the rotation tensor.

Definition at line 982 of file FiniteStrainCrystalPlasticity.C.

Referenced by postSolveQp().

983 {
984  return getMatRot(a);
985 }
RankTwoTensor getMatRot(const RankTwoTensor &a)
This function perform RU decomposition to obtain the rotation tensor.
void FiniteStrainCrystalPlasticity::getFlowRateParams ( )
protectedvirtual

This function assign flow rate parameters - see test.

.i input file format start_slip_sys_num, end_slip_sys_num, value1, value2

Definition at line 337 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

338 {
339  if (_flowprops.size() <= 0)
340  mooseError("FiniteStrainCrystalPLasticity: Error in reading flow rate properties: Specify "
341  "input in .i file or a slip_sys_flow_prop_file_name");
342 
343  _a0.resize(_nss);
344  _xm.resize(_nss);
345 
346  unsigned int num_data_grp = 2 + _num_slip_sys_flowrate_props; // Number of data per group e.g.
347  // start_slip_sys, end_slip_sys,
348  // value1, value2, ..
349 
350  for (unsigned int i = 0; i < _flowprops.size() / num_data_grp; ++i)
351  {
352  Real vs, ve;
353  unsigned int is, ie;
354 
355  vs = _flowprops[i * num_data_grp];
356  ve = _flowprops[i * num_data_grp + 1];
357 
358  if (vs <= 0 || ve <= 0)
359  mooseError("FiniteStrainCrystalPLasticity: Indices in flow rate parameter read must be "
360  "positive integers: is = ",
361  vs,
362  " ie = ",
363  ve);
364 
365  if (vs != floor(vs) || ve != floor(ve))
366  mooseError("FiniteStrainCrystalPLasticity: Error in reading flow props: Values specifying "
367  "start and end number of slip system groups should be integer");
368 
369  is = static_cast<unsigned int>(vs);
370  ie = static_cast<unsigned int>(ve);
371 
372  if (is > ie)
373  mooseError("FiniteStrainCrystalPLasticity: Start index is = ",
374  is,
375  " should be greater than end index ie = ",
376  ie,
377  " in flow rate parameter read");
378 
379  for (unsigned int j = is; j <= ie; ++j)
380  {
381  _a0(j - 1) = _flowprops[i * num_data_grp + 2];
382  _xm(j - 1) = _flowprops[i * num_data_grp + 3];
383  }
384  }
385 
386  for (unsigned int i = 0; i < _nss; ++i)
387  {
388  if (!(_a0(i) > 0.0 && _xm(i) > 0.0))
389  {
390  mooseWarning(
391  "FiniteStrainCrystalPlasticity: Non-positive flow rate parameters ", _a0(i), ",", _xm(i));
392  break;
393  }
394  }
395 }
unsigned int _num_slip_sys_flowrate_props
Number of slip system flow rate parameters.
const unsigned int _nss
Number of slip system resistance.
void FiniteStrainCrystalPlasticity::getHardnessParams ( )
protectedvirtual

This function assign flow rate parameters from .i file - see test.

Definition at line 405 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

406 {
407  if (_hprops.size() <= 0)
408  mooseError("FiniteStrainCrystalPLasticity: Error in reading hardness properties: Specify input "
409  "in .i file or a slip_sys_hard_prop_file_name");
410 
411  _r = _hprops[0];
412  _h0 = _hprops[1];
413  _tau_init = _hprops[2];
414  _tau_sat = _hprops[3];
415 }
void FiniteStrainCrystalPlasticity::getInitSlipSysRes ( )
protectedvirtual

This function assign slip system resistances - see test.

.i input file format start_slip_sys_num, end_slip_sys_num, value.

Definition at line 255 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

256 {
257  if (_gprops.size() <= 0)
258  mooseError("FiniteStrainCrystalPLasticity: Error in reading slip system resistance properties: "
259  "Specify input in .i file or in slip_sys_res_prop_file or in slip_sys_file");
260 
261  _gss[_qp].resize(_nss, 0.0);
262 
263  unsigned int num_data_grp = 3; // Number of data per group e.g. start_slip_sys, end_slip_sys,
264  // value
265 
266  for (unsigned int i = 0; i < _gprops.size() / num_data_grp; ++i)
267  {
268  Real vs, ve;
269  unsigned int is, ie;
270 
271  vs = _gprops[i * num_data_grp];
272  ve = _gprops[i * num_data_grp + 1];
273 
274  if (vs <= 0 || ve <= 0)
275  mooseError("FiniteStrainCrystalPLasticity: Indices in gss property read must be positive "
276  "integers: is = ",
277  vs,
278  " ie = ",
279  ve);
280 
281  if (vs != floor(vs) || ve != floor(ve))
282  mooseError("FiniteStrainCrystalPLasticity: Error in reading slip system resistances: Values "
283  "specifying start and end number of slip system groups should be integer");
284 
285  is = static_cast<unsigned int>(vs);
286  ie = static_cast<unsigned int>(ve);
287 
288  if (is > ie)
289  mooseError("FiniteStrainCrystalPLasticity: Start index is = ",
290  is,
291  " should be greater than end index ie = ",
292  ie,
293  " in slip system resistance property read");
294 
295  for (unsigned int j = is; j <= ie; ++j)
296  _gss[_qp][j - 1] = _gprops[i * num_data_grp + 2];
297  }
298 
299  for (unsigned int i = 0; i < _nss; ++i)
300  if (_gss[_qp][i] <= 0.0)
301  mooseError("FiniteStrainCrystalPLasticity: Value of resistance for slip system ",
302  i + 1,
303  " non positive");
304 }
const unsigned int _nss
Number of slip system resistance.
MaterialProperty< std::vector< Real > > & _gss
RankTwoTensor FiniteStrainCrystalPlasticity::getMatRot ( const RankTwoTensor &  a)
protected

This function perform RU decomposition to obtain the rotation tensor.

Definition at line 989 of file FiniteStrainCrystalPlasticity.C.

Referenced by get_current_rotation().

990 {
991  RankTwoTensor rot;
992  RankTwoTensor c, diag, evec;
993  PetscScalar cmat[LIBMESH_DIM][LIBMESH_DIM], work[10];
994  PetscReal w[LIBMESH_DIM];
995  PetscBLASInt nd = LIBMESH_DIM, lwork = 10, info;
996 
997  c = a.transpose() * a;
998 
999  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
1000  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1001  cmat[i][j] = c(i, j);
1002 
1003  LAPACKsyev_("V", "U", &nd, &cmat[0][0], &nd, w, work, &lwork, &info);
1004 
1005  if (info != 0)
1006  mooseError("FiniteStrainCrystalPLasticity: DSYEV function call in getMatRot function failed");
1007 
1008  diag.zero();
1009 
1010  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
1011  diag(i, i) = std::sqrt(w[i]);
1012 
1013  for (unsigned int i = 0; i < LIBMESH_DIM; ++i)
1014  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
1015  evec(i, j) = cmat[i][j];
1016 
1017  rot = a * ((evec.transpose() * diag * evec).inverse());
1018 
1019  return rot;
1020 }
void FiniteStrainCrystalPlasticity::getSlipIncrements ( )
protectedvirtual

This function updates the slip increments.

And derivative of slip w.r.t. resolved shear stress.

Reimplemented in FiniteStrainCPSlipRateRes.

Definition at line 958 of file FiniteStrainCrystalPlasticity.C.

Referenced by calcResidual(), and FiniteStrainCPSlipRateRes::getSlipIncrements().

959 {
960  for (unsigned int i = 0; i < _nss; ++i)
961  {
962  _slip_incr(i) = _a0(i) * std::pow(std::abs(_tau(i) / _gss_tmp[i]), 1.0 / _xm(i)) *
963  copysign(1.0, _tau(i)) * _dt;
964  if (std::abs(_slip_incr(i)) > _slip_incr_tol)
965  {
966  _err_tol = true;
967 #ifdef DEBUG
968  mooseWarning("Maximum allowable slip increment exceeded ", std::abs(_slip_incr(i)));
969 #endif
970  return;
971  }
972  }
973 
974  for (unsigned int i = 0; i < _nss; ++i)
975  _dslipdtau(i) = _a0(i) / _xm(i) *
976  std::pow(std::abs(_tau(i) / _gss_tmp[i]), 1.0 / _xm(i) - 1.0) / _gss_tmp[i] *
977  _dt;
978 }
const unsigned int _nss
Number of slip system resistance.
ExpressionBuilder::EBTerm pow(const ExpressionBuilder::EBTerm &left, T exponent)
Real _slip_incr_tol
Slip increment tolerance.
void FiniteStrainCrystalPlasticity::getSlipSystems ( )
protectedvirtual

This function reads slip system from file - see test.

Definition at line 419 of file FiniteStrainCrystalPlasticity.C.

Referenced by FiniteStrainCrystalPlasticity().

420 {
421  Real vec[LIBMESH_DIM];
422  std::ifstream fileslipsys;
423 
424  MooseUtils::checkFileReadable(_slip_sys_file_name);
425 
426  fileslipsys.open(_slip_sys_file_name.c_str());
427 
428  for (unsigned int i = 0; i < _nss; ++i)
429  {
430  // Read the slip normal
431  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
432  if (!(fileslipsys >> vec[j]))
433  mooseError("Crystal Plasticity Error: Premature end of file reading slip system file \n");
434 
435  // Normalize the vectors
436  Real mag;
437  mag = Utility::pow<2>(vec[0]) + Utility::pow<2>(vec[1]) + Utility::pow<2>(vec[2]);
438  mag = std::sqrt(mag);
439 
440  for (unsigned j = 0; j < LIBMESH_DIM; ++j)
441  _no(i * LIBMESH_DIM + j) = vec[j] / mag;
442 
443  // Read the slip direction
444  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
445  if (!(fileslipsys >> vec[j]))
446  mooseError("Crystal Plasticity Error: Premature end of file reading slip system file \n");
447 
448  // Normalize the vectors
449  mag = Utility::pow<2>(vec[0]) + Utility::pow<2>(vec[1]) + Utility::pow<2>(vec[2]);
450  mag = std::sqrt(mag);
451 
452  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
453  _mo(i * LIBMESH_DIM + j) = vec[j] / mag;
454 
455  mag = 0.0;
456  for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
457  mag += _mo(i * LIBMESH_DIM + j) * _no(i * LIBMESH_DIM + j);
458 
459  if (std::abs(mag) > 1e-8)
460  mooseError(
461  "Crystal Plasicity Error: Slip direction and normal not orthonormal, System number = ",
462  i,
463  "\n");
464 
466  for (unsigned int j = 0; j < _num_slip_sys_props; ++j)
467  if (!(fileslipsys >> _slip_sys_props(i * _num_slip_sys_props + j)))
468  mooseError("Crystal Plasticity Error: Premature end of file reading slip system file - "
469  "check in slip system file read input options/values\n");
470  }
471 
472  fileslipsys.close();
473 }
const unsigned int _nss
Number of slip system resistance.
unsigned int _num_slip_sys_props
Number of slip system specific properties provided in the file containing slip system normals and dir...
std::string _slip_sys_file_name
File should contain slip plane normal and direction. See test.
void FiniteStrainCrystalPlasticity::initAdditionalProps ( )
protectedvirtual

This function initializes additional parameters.

Definition at line 477 of file FiniteStrainCrystalPlasticity.C.

Referenced by initQpStatefulProperties().

478 {
479 }
void FiniteStrainCrystalPlasticity::initQpStatefulProperties ( )
protectedvirtual

This function initializes the stateful properties such as stress, plastic deformation gradient, slip system resistances, etc.

Reimplemented from ComputeStressBase.

Definition at line 182 of file FiniteStrainCrystalPlasticity.C.

183 {
184  _stress[_qp].zero();
185 
186  _fp[_qp].zero();
187  _fp[_qp].addIa(1.0);
188 
189  _pk2[_qp].zero();
190  _acc_slip[_qp] = 0.0;
191  _lag_e[_qp].zero();
192 
193  _update_rot[_qp].zero();
194  _update_rot[_qp].addIa(1.0);
195 
196  initSlipSysProps(); // Initializes slip system related properties
198 }
MaterialProperty< RankTwoTensor > & _lag_e
MaterialProperty< RankTwoTensor > & _pk2
MaterialProperty< RankTwoTensor > & _stress
MaterialProperty< RankTwoTensor > & _fp
virtual void initSlipSysProps()
This function initializes slip system resistances.
virtual void initAdditionalProps()
This function initializes additional parameters.
MaterialProperty< RankTwoTensor > & _update_rot
void FiniteStrainCrystalPlasticity::initSlipSysProps ( )
protectedvirtual

This function initializes slip system resistances.

Definition at line 201 of file FiniteStrainCrystalPlasticity.C.

Referenced by initQpStatefulProperties().

202 {
203  switch (_intvar_read_type)
204  {
205  case 0:
207  break;
208  case 1:
210  break;
211  default:
213  }
214 
215  if (_slip_sys_flow_prop_file_name.length() != 0)
217  else
219 
220  if (_slip_sys_hard_prop_file_name.length() != 0)
222  else
224 }
virtual void getHardnessParams()
This function assign flow rate parameters from .i file - see test.
std::string _slip_sys_flow_prop_file_name
File should contain values of the flow rate equation parameters.
virtual void readFileHardnessParams()
This function read hardness parameters from file.
std::string _slip_sys_hard_prop_file_name
The hardening parameters in this class are read from .i file. The user can override to read from file...
virtual void assignSlipSysRes()
This function assign initial values of slip system resistances/internal variables read from getSlipSy...
virtual void getFlowRateParams()
This function assign flow rate parameters - see test.
virtual void readFileFlowRateParams()
This function read flow rate parameters from file - see test.
virtual void getInitSlipSysRes()
This function assign slip system resistances - see test.
virtual void readFileInitSlipSysRes()
This function read slip system resistances from file - see test.
MooseEnum _intvar_read_type
Read from options for initial values of internal variables.
void FiniteStrainCrystalPlasticity::internalVariableUpdateNRiteration ( )
protected

This function updates internal variables after each NewTon Raphson iteration (_fp_inv)

Definition at line 1206 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveStress().

1207 {
1208  _fp_prev_inv = _fp_inv; // update _fp_prev_inv
1209 }
bool FiniteStrainCrystalPlasticity::line_search_update ( const Real  rnorm_prev,
const RankTwoTensor  dpk2 
)
protected

This function performs the line search update.

Definition at line 1123 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveStress().

1124 {
1125  if (_lsrch_method == "CUT_HALF")
1126  {
1127  Real rnorm;
1128  RankTwoTensor resid;
1129  Real step = 1.0;
1130 
1131  do
1132  {
1133  _pk2_tmp = _pk2_tmp - step * dpk2;
1134  step /= 2.0;
1135  _pk2_tmp = _pk2_tmp + step * dpk2;
1136 
1137  calcResidual(resid);
1138  rnorm = resid.L2norm();
1139  } while (rnorm > rnorm_prev && step > _min_lsrch_step);
1140 
1141  if (rnorm > rnorm_prev && step <= _min_lsrch_step)
1142  return false;
1143 
1144  return true;
1145  }
1146  else if (_lsrch_method == "BISECTION")
1147  {
1148  unsigned int count = 0;
1149  Real step_a = 0.0;
1150  Real step_b = 1.0;
1151  Real step = 1.0;
1152  Real s_m = 1000.0;
1153  Real rnorm = 1000.0;
1154 
1155  RankTwoTensor resid;
1156  calcResidual(resid);
1157  Real s_b = resid.doubleContraction(dpk2);
1158  Real rnorm1 = resid.L2norm();
1159  _pk2_tmp = _pk2_tmp - dpk2;
1160  calcResidual(resid);
1161  Real s_a = resid.doubleContraction(dpk2);
1162  Real rnorm0 = resid.L2norm();
1163  _pk2_tmp = _pk2_tmp + dpk2;
1164 
1165  if ((rnorm1 / rnorm0) < _lsrch_tol || s_a * s_b > 0)
1166  {
1167  calcResidual(resid);
1168  return true;
1169  }
1170 
1171  while ((rnorm / rnorm0) > _lsrch_tol && count < _lsrch_max_iter)
1172  {
1173  _pk2_tmp = _pk2_tmp - step * dpk2;
1174  step = 0.5 * (step_b + step_a);
1175  _pk2_tmp = _pk2_tmp + step * dpk2;
1176  calcResidual(resid);
1177  s_m = resid.doubleContraction(dpk2);
1178  rnorm = resid.L2norm();
1179 
1180  if (s_m * s_a < 0.0)
1181  {
1182  step_b = step;
1183  s_b = s_m;
1184  }
1185  if (s_m * s_b < 0.0)
1186  {
1187  step_a = step;
1188  s_a = s_m;
1189  }
1190  count++;
1191  }
1192 
1193  if ((rnorm / rnorm0) < _lsrch_tol && count < _lsrch_max_iter)
1194  return true;
1195 
1196  return false;
1197  }
1198  else
1199  {
1200  mooseError("Line search meothod is not provided.");
1201  return false;
1202  }
1203 }
virtual void calcResidual(RankTwoTensor &)
This function calculate stress residual.
unsigned int _lsrch_max_iter
Line search bisection method maximum iteration number.
Real _lsrch_tol
Line search bisection method tolerance.
Real _min_lsrch_step
Minimum line search step size.
void FiniteStrainCrystalPlasticity::postSolveQp ( )
protectedvirtual

This function update stress and internal variable after solve.

Definition at line 581 of file FiniteStrainCrystalPlasticity.C.

Referenced by computeQpStress().

582 {
583  if (_err_tol)
584  {
585  _err_tol = false;
587  {
589  _rndm_scale_var = _elasticity_tensor[_qp](0, 0, 0, 0);
590 
591  _stress[_qp] = RankTwoTensor::genRandomSymmTensor(_rndm_scale_var, 1.0);
592  }
593  else
594  mooseError("FiniteStrainCrystalPlasticity: Constitutive failure");
595  }
596  else
597  {
598  _stress[_qp] = _fe * _pk2[_qp] * _fe.transpose() / _fe.det();
599 
600  _Jacobian_mult[_qp] += calcTangentModuli(); // Calculate jacobian for preconditioner
601 
602  RankTwoTensor iden;
603  iden.addIa(1.0);
604 
605  _lag_e[_qp] = _deformation_gradient[_qp].transpose() * _deformation_gradient[_qp] - iden;
606  _lag_e[_qp] = _lag_e[_qp] * 0.5;
607 
608  RankTwoTensor rot;
609  rot = get_current_rotation(_deformation_gradient[_qp]); // Calculate material rotation
610  _update_rot[_qp] = rot * _crysrot[_qp];
611  }
612 }
MaterialProperty< RankFourTensor > & _Jacobian_mult
derivative of stress w.r.t. strain (_dstress_dstrain)
MaterialProperty< RankTwoTensor > & _lag_e
const MaterialProperty< RankTwoTensor > & _deformation_gradient
bool _input_rndm_scale_var
Input option for scaling variable to generate random stress when convergence fails.
const MaterialProperty< RankFourTensor > & _elasticity_tensor
MaterialProperty< RankTwoTensor > & _pk2
MaterialProperty< RankTwoTensor > & _stress
virtual RankFourTensor calcTangentModuli()
This function calculate the tangent moduli for preconditioner.
const MaterialProperty< RankTwoTensor > & _crysrot
MaterialProperty< RankTwoTensor > & _update_rot
RankTwoTensor get_current_rotation(const RankTwoTensor &a)
This function perform RU decomposition to obtain the rotation tensor.
void FiniteStrainCrystalPlasticity::postSolveStatevar ( )
protectedvirtual

This function update internal variable after solve.

Definition at line 677 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveQp().

678 {
679  if (_max_substep_iter == 1) // No substepping
680  {
681  _gss[_qp] = _gss_tmp;
682  _acc_slip[_qp] = _accslip_tmp;
683  }
684  else
685  {
686  if (_last_step_iter)
687  {
688  _gss[_qp] = _gss_tmp;
689  _acc_slip[_qp] = _accslip_tmp;
690  }
691  else
692  {
695  }
696  }
697 }
MaterialProperty< std::vector< Real > > & _gss
unsigned int _max_substep_iter
Maximum number of substep iterations.
void FiniteStrainCrystalPlasticity::postSolveStress ( )
protectedvirtual

This function update stress and plastic deformation gradient after solve.

Definition at line 796 of file FiniteStrainCrystalPlasticity.C.

Referenced by FiniteStrainCPSlipRateRes::solveStatevar(), and solveStatevar().

797 {
798  if (_max_substep_iter == 1) // No substepping
799  {
800  _fp[_qp] = _fp_inv.inverse();
801  _pk2[_qp] = _pk2_tmp;
802  }
803  else
804  {
805  if (_last_step_iter)
806  {
807  _fp[_qp] = _fp_inv.inverse();
808  _pk2[_qp] = _pk2_tmp;
809  }
810  else
811  {
814  }
815  }
816 }
MaterialProperty< RankTwoTensor > & _pk2
MaterialProperty< RankTwoTensor > & _fp
unsigned int _max_substep_iter
Maximum number of substep iterations.
void FiniteStrainCrystalPlasticity::preSolveQp ( )
protectedvirtual

This function set variables for stress and internal variable solve.

Definition at line 553 of file FiniteStrainCrystalPlasticity.C.

Referenced by computeQpStress().

554 {
555  // Initialize variable
556  if (_first_substep)
557  {
558  _Jacobian_mult[_qp].zero(); // Initializes jacobian for preconditioner
560  }
561 
562  if (_max_substep_iter == 1)
563  _dfgrd_tmp = _deformation_gradient[_qp]; // Without substepping
564  else
566 
567  _err_tol = false;
568 }
MaterialProperty< RankFourTensor > & _Jacobian_mult
derivative of stress w.r.t. strain (_dstress_dstrain)
const MaterialProperty< RankTwoTensor > & _deformation_gradient
Real _dfgrd_scale_factor
Scales the substepping increment to obtain deformation gradient at a substep iteration.
RankTwoTensor _delta_dfgrd
Flag to check whether convergence is achieved.
void calc_schmid_tensor()
This function calculate the Schmid tensor.
unsigned int _max_substep_iter
Maximum number of substep iterations.
void FiniteStrainCrystalPlasticity::preSolveStatevar ( )
protectedvirtual

This function set variables for internal variable solve.

Definition at line 615 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveQp().

616 {
617  if (_max_substep_iter == 1) // No substepping
618  {
619  _gss_tmp = _gss_old[_qp];
621  }
622  else
623  {
624  if (_first_step_iter)
625  {
626  _gss_tmp = _gss_tmp_old = _gss_old[_qp];
628  }
629  else
631  }
632 }
const MaterialProperty< std::vector< Real > > & _gss_old
unsigned int _max_substep_iter
Maximum number of substep iterations.
bool _first_step_iter
Flags to reset variables and reinitialize variables.
const MaterialProperty< Real > & _acc_slip_old
void FiniteStrainCrystalPlasticity::preSolveStress ( )
protectedvirtual

This function set variables for stress solve.

Reimplemented in FiniteStrainCPSlipRateRes.

Definition at line 700 of file FiniteStrainCrystalPlasticity.C.

Referenced by FiniteStrainCPSlipRateRes::preSolveStress(), and solveStatevar().

701 {
702  if (_max_substep_iter == 1) // No substepping
703  {
704  _pk2_tmp = _pk2_old[_qp];
705  _fp_old_inv = _fp_old[_qp].inverse();
708  }
709  else
710  {
711  if (_first_step_iter)
712  {
713  _pk2_tmp = _pk2_tmp_old = _pk2_old[_qp];
714  _fp_old_inv = _fp_old[_qp].inverse();
715  }
716  else
718 
721  }
722 }
const MaterialProperty< RankTwoTensor > & _pk2_old
const MaterialProperty< RankTwoTensor > & _fp_old
unsigned int _max_substep_iter
Maximum number of substep iterations.
bool _first_step_iter
Flags to reset variables and reinitialize variables.
void FiniteStrainCrystalPlasticity::readFileFlowRateParams ( )
protectedvirtual

This function read flow rate parameters from file - see test.

Definition at line 308 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

309 {
310  _a0.resize(_nss);
311  _xm.resize(_nss);
312 
313  MooseUtils::checkFileReadable(_slip_sys_flow_prop_file_name);
314 
315  std::ifstream file;
316  file.open(_slip_sys_flow_prop_file_name.c_str());
317 
318  std::vector<Real> vec;
319  vec.resize(_num_slip_sys_flowrate_props);
320 
321  for (unsigned int i = 0; i < _nss; ++i)
322  {
323  for (unsigned int j = 0; j < _num_slip_sys_flowrate_props; ++j)
324  if (!(file >> vec[j]))
325  mooseError(
326  "Error FiniteStrainCrystalPlasticity: Premature end of slip_sys_flow_rate_param file");
327 
328  _a0(i) = vec[0];
329  _xm(i) = vec[1];
330  }
331 
332  file.close();
333 }
std::string _slip_sys_flow_prop_file_name
File should contain values of the flow rate equation parameters.
unsigned int _num_slip_sys_flowrate_props
Number of slip system flow rate parameters.
const unsigned int _nss
Number of slip system resistance.
void FiniteStrainCrystalPlasticity::readFileHardnessParams ( )
protectedvirtual

This function read hardness parameters from file.

Definition at line 399 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

400 {
401 }
void FiniteStrainCrystalPlasticity::readFileInitSlipSysRes ( )
protectedvirtual

This function read slip system resistances from file - see test.

Definition at line 237 of file FiniteStrainCrystalPlasticity.C.

Referenced by initSlipSysProps().

238 {
239  _gss[_qp].resize(_nss);
240 
241  MooseUtils::checkFileReadable(_slip_sys_res_prop_file_name);
242 
243  std::ifstream file;
244  file.open(_slip_sys_res_prop_file_name.c_str());
245 
246  for (unsigned int i = 0; i < _nss; ++i)
247  if (!(file >> _gss[_qp][i]))
248  mooseError("Error FiniteStrainCrystalPlasticity: Premature end of slip_sys_res_prop file");
249 
250  file.close();
251 }
const unsigned int _nss
Number of slip system resistance.
MaterialProperty< std::vector< Real > > & _gss
std::string _slip_sys_res_prop_file_name
File should contain initial values of the slip system resistances.
void FiniteStrainCrystalPlasticity::solveQp ( )
protectedvirtual

This function solves stress and internal variables.

Definition at line 571 of file FiniteStrainCrystalPlasticity.C.

Referenced by computeQpStress().

572 {
574  solveStatevar();
575  if (_err_tol)
576  return;
578 }
virtual void solveStatevar()
This function solves internal variables.
virtual void postSolveStatevar()
This function update internal variable after solve.
virtual void preSolveStatevar()
This function set variables for internal variable solve.
void FiniteStrainCrystalPlasticity::solveStatevar ( )
protectedvirtual

This function solves internal variables.

Reimplemented in FiniteStrainCPSlipRateRes.

Definition at line 635 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveQp().

636 {
637  Real gmax, gdiff;
638  unsigned int iterg;
639  std::vector<Real> gss_prev(_nss);
640 
641  gmax = 1.1 * _gtol;
642  iterg = 0;
643 
644  while (gmax > _gtol && iterg < _maxiterg) // Check for slip system resistance update tolerance
645  {
646  preSolveStress();
647  solveStress();
648  if (_err_tol)
649  return;
650  postSolveStress();
651 
652  gss_prev = _gss_tmp;
653 
654  update_slip_system_resistance(); // Update slip system resistance
655 
656  gmax = 0.0;
657  for (unsigned i = 0; i < _nss; ++i)
658  {
659  gdiff = std::abs(gss_prev[i] - _gss_tmp[i]); // Calculate increment size
660 
661  if (gdiff > gmax)
662  gmax = gdiff;
663  }
664  iterg++;
665  }
666 
667  if (iterg == _maxiterg)
668  {
669 #ifdef DEBUG
670  mooseWarning("FiniteStrainCrystalPLasticity: Hardness Integration error gmax", gmax, "\n");
671 #endif
672  _err_tol = true;
673  }
674 }
virtual void solveStress()
This function solves for stress, updates plastic deformation gradient.
virtual void update_slip_system_resistance()
This function updates the slip system resistances.
const unsigned int _nss
Number of slip system resistance.
Real _gtol
Internal variable update equation tolerance.
virtual void preSolveStress()
This function set variables for stress solve.
virtual void postSolveStress()
This function update stress and plastic deformation gradient after solve.
unsigned int _maxiterg
Maximum number of iterations for internal variable update.
void FiniteStrainCrystalPlasticity::solveStress ( )
protectedvirtual

This function solves for stress, updates plastic deformation gradient.

Reimplemented in FiniteStrainCPSlipRateRes.

Definition at line 725 of file FiniteStrainCrystalPlasticity.C.

Referenced by solveStatevar().

726 {
727  unsigned int iter = 0;
728  RankTwoTensor resid, dpk2;
729  RankFourTensor jac;
730  Real rnorm, rnorm0, rnorm_prev;
731 
732  calc_resid_jacob(resid, jac); // Calculate stress residual
733  if (_err_tol)
734  {
735 #ifdef DEBUG
736  mooseWarning(
737  "FiniteStrainCrystalPLasticity: Slip increment exceeds tolerance - Element number ",
738  _current_elem->id(),
739  " Gauss point = ",
740  _qp);
741 #endif
742  return;
743  }
744 
745  rnorm = resid.L2norm();
746  rnorm0 = rnorm;
747 
748  while (rnorm > _rtol * rnorm0 && rnorm0 > _abs_tol &&
749  iter < _maxiter) // Check for stress residual tolerance
750  {
751  dpk2 = -jac.invSymm() * resid; // Calculate stress increment
752  _pk2_tmp = _pk2_tmp + dpk2; // Update stress
753  calc_resid_jacob(resid, jac);
754  internalVariableUpdateNRiteration(); // update _fp_prev_inv
755 
756  if (_err_tol)
757  {
758 #ifdef DEBUG
759  mooseWarning(
760  "FiniteStrainCrystalPLasticity: Slip increment exceeds tolerance - Element number ",
761  _current_elem->id(),
762  " Gauss point = ",
763  _qp);
764 #endif
765  return;
766  }
767 
768  rnorm_prev = rnorm;
769  rnorm = resid.L2norm();
770 
771  if (_use_line_search && rnorm > rnorm_prev && !line_search_update(rnorm_prev, dpk2))
772  {
773 #ifdef DEBUG
774  mooseWarning("FiniteStrainCrystalPLasticity: Failed with line search");
775 #endif
776  _err_tol = true;
777  return;
778  }
779 
780  if (_use_line_search)
781  rnorm = resid.L2norm();
782 
783  iter++;
784  }
785 
786  if (iter >= _maxiter)
787  {
788 #ifdef DEBUG
789  mooseWarning("FiniteStrainCrystalPLasticity: Stress Integration error rmax = ", rnorm);
790 #endif
791  _err_tol = true;
792  }
793 }
void internalVariableUpdateNRiteration()
This function updates internal variables after each NewTon Raphson iteration (_fp_inv) ...
bool _use_line_search
Flag to activate line serach.
Real _rtol
Stress residual equation relative tolerance.
unsigned int _maxiter
Maximum number of iterations for stress update.
bool line_search_update(const Real rnorm_prev, const RankTwoTensor)
This function performs the line search update.
virtual void calc_resid_jacob(RankTwoTensor &, RankFourTensor &)
This function calls the residual and jacobian functions used in the stress update algorithm...
Real _abs_tol
Stress residual equation absolute tolerance.
void FiniteStrainCrystalPlasticity::update_slip_system_resistance ( )
protectedvirtual

This function updates the slip system resistances.

Definition at line 820 of file FiniteStrainCrystalPlasticity.C.

Referenced by FiniteStrainCPSlipRateRes::calcResidualSlipRate(), and solveStatevar().

821 {
822  updateGss();
823 }
virtual void updateGss()
This function updates the slip system resistances.
void FiniteStrainCrystalPlasticity::updateGss ( )
protectedvirtual

This function updates the slip system resistances.

Old function to update slip system resistances.

Kept to avoid code break at computeQpstress

Definition at line 830 of file FiniteStrainCrystalPlasticity.C.

Referenced by update_slip_system_resistance().

831 {
832  DenseVector<Real> hb(_nss);
833  Real qab;
834 
835  Real a = _hprops[4]; // Kalidindi
836 
838  for (unsigned int i = 0; i < _nss; ++i)
839  _accslip_tmp += std::abs(_slip_incr(i));
840 
841  // Real val = std::cosh(_h0 * _accslip_tmp / (_tau_sat - _tau_init)); // Karthik
842  // val = _h0 * std::pow(1.0/val,2.0); // Kalidindi
843 
844  for (unsigned int i = 0; i < _nss; ++i)
845  // hb(i)=val;
846  hb(i) = _h0 * std::pow(std::abs(1.0 - _gss_tmp[i] / _tau_sat), a) *
847  copysign(1.0, 1.0 - _gss_tmp[i] / _tau_sat);
848 
849  for (unsigned int i = 0; i < _nss; ++i)
850  {
851  if (_max_substep_iter == 1) // No substepping
852  _gss_tmp[i] = _gss_old[_qp][i];
853  else
854  _gss_tmp[i] = _gss_tmp_old[i];
855 
856  for (unsigned int j = 0; j < _nss; ++j)
857  {
858  unsigned int iplane, jplane;
859  iplane = i / 3;
860  jplane = j / 3;
861 
862  if (iplane == jplane) // Kalidindi
863  qab = 1.0;
864  else
865  qab = _r;
866 
867  _gss_tmp[i] += qab * hb(j) * std::abs(_slip_incr(j));
868  _dgss_dsliprate(i, j) = qab * hb(j) * copysign(1.0, _slip_incr(j)) * _dt;
869  }
870  }
871 }
const MaterialProperty< std::vector< Real > > & _gss_old
const unsigned int _nss
Number of slip system resistance.
ExpressionBuilder::EBTerm pow(const ExpressionBuilder::EBTerm &left, T exponent)
unsigned int _max_substep_iter
Maximum number of substep iterations.

Member Data Documentation

DenseVector<Real> FiniteStrainCrystalPlasticity::_a0
protected
Real FiniteStrainCrystalPlasticity::_abs_tol
protected

Stress residual equation absolute tolerance.

Definition at line 248 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCPSlipRateRes::solveStress(), and solveStress().

MaterialProperty<Real>& FiniteStrainCrystalPlasticity::_acc_slip
protected

Definition at line 308 of file FiniteStrainCrystalPlasticity.h.

Referenced by initQpStatefulProperties(), and postSolveStatevar().

const MaterialProperty<Real>& FiniteStrainCrystalPlasticity::_acc_slip_old
protected

Definition at line 309 of file FiniteStrainCrystalPlasticity.h.

Referenced by preSolveStatevar().

Real FiniteStrainCrystalPlasticity::_accslip_tmp
protected

Definition at line 334 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveStatevar(), and updateGss().

Real FiniteStrainCrystalPlasticity::_accslip_tmp_old
protected

Definition at line 334 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveStatevar(), preSolveStatevar(), and updateGss().

const std::string ComputeStressBase::_base_name
protectedinherited
const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_crysrot
protected

Definition at line 315 of file FiniteStrainCrystalPlasticity.h.

Referenced by calc_schmid_tensor(), and postSolveQp().

const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_deformation_gradient
protected

Definition at line 312 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), postSolveQp(), and preSolveQp().

const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_deformation_gradient_old
protected

Definition at line 313 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress().

RankTwoTensor FiniteStrainCrystalPlasticity::_delta_dfgrd
protected

Flag to check whether convergence is achieved.

Used for substepping; Uniformly divides the increment in deformation gradient

Definition at line 347 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), FiniteStrainCrystalPlasticity(), and preSolveQp().

Real FiniteStrainCrystalPlasticity::_dfgrd_scale_factor
protected

Scales the substepping increment to obtain deformation gradient at a substep iteration.

Definition at line 349 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), and preSolveQp().

RankTwoTensor FiniteStrainCrystalPlasticity::_dfgrd_tmp
protected
RankTwoTensor FiniteStrainCrystalPlasticity::_dfgrd_tmp_old
protected

Definition at line 347 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), and preSolveQp().

DenseMatrix<Real> FiniteStrainCrystalPlasticity::_dgss_dsliprate
protected
DenseVector<Real> FiniteStrainCrystalPlasticity::_dslipdtau
protected
MaterialProperty<RankTwoTensor>& ComputeStressBase::_elastic_strain
protectedinherited
const MaterialProperty<RankFourTensor>& FiniteStrainCrystalPlasticity::_elasticity_tensor
protected
const std::string ComputeStressBase::_elasticity_tensor_name
protectedinherited
bool FiniteStrainCrystalPlasticity::_err_tol
protected
const MaterialProperty<RankTwoTensor>& ComputeStressBase::_extra_stress
protectedinherited
RankTwoTensor FiniteStrainCrystalPlasticity::_fe
protected
bool FiniteStrainCrystalPlasticity::_first_step_iter
protected

Flags to reset variables and reinitialize variables.

Definition at line 351 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), FiniteStrainCrystalPlasticity(), preSolveStatevar(), and preSolveStress().

bool FiniteStrainCrystalPlasticity::_first_substep
protected
std::vector<Real> FiniteStrainCrystalPlasticity::_flowprops
protected

Definition at line 228 of file FiniteStrainCrystalPlasticity.h.

Referenced by getFlowRateParams().

MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_fp
protected

Definition at line 300 of file FiniteStrainCrystalPlasticity.h.

Referenced by initQpStatefulProperties(), and postSolveStress().

RankTwoTensor FiniteStrainCrystalPlasticity::_fp_inv
protected
const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_fp_old
protected

Definition at line 301 of file FiniteStrainCrystalPlasticity.h.

Referenced by preSolveStress().

RankTwoTensor FiniteStrainCrystalPlasticity::_fp_old_inv
protected
RankTwoTensor FiniteStrainCrystalPlasticity::_fp_prev_inv
protected
bool FiniteStrainCrystalPlasticity::_gen_rndm_stress_flag
protected

Definition at line 271 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveQp().

std::vector<Real> FiniteStrainCrystalPlasticity::_gprops
protected

Definition at line 226 of file FiniteStrainCrystalPlasticity.h.

Referenced by getInitSlipSysRes().

MaterialProperty<std::vector<Real> >& FiniteStrainCrystalPlasticity::_gss
protected
const MaterialProperty<std::vector<Real> >& FiniteStrainCrystalPlasticity::_gss_old
protected

Definition at line 307 of file FiniteStrainCrystalPlasticity.h.

Referenced by preSolveStatevar(), and updateGss().

std::vector<Real> FiniteStrainCrystalPlasticity::_gss_tmp
protected
std::vector<Real> FiniteStrainCrystalPlasticity::_gss_tmp_old
protected

Definition at line 336 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveStatevar(), preSolveStatevar(), and updateGss().

Real FiniteStrainCrystalPlasticity::_gtol
protected

Internal variable update equation tolerance.

Definition at line 250 of file FiniteStrainCrystalPlasticity.h.

Referenced by solveStatevar().

Real FiniteStrainCrystalPlasticity::_h0
protected

Definition at line 323 of file FiniteStrainCrystalPlasticity.h.

Referenced by getHardnessParams(), and updateGss().

std::vector<Real> FiniteStrainCrystalPlasticity::_hprops
protected

Definition at line 227 of file FiniteStrainCrystalPlasticity.h.

Referenced by getHardnessParams(), and updateGss().

MaterialProperty<RankTwoTensor>* ComputeStressBase::_initial_stress
protectedinherited

Initial stress, if provided. InitialStress Deprecation: remove this.

Definition at line 74 of file ComputeStressBase.h.

Referenced by ComputeStressBase::initQpStatefulProperties().

std::vector<Function *> ComputeStressBase::_initial_stress_fcn
protectedinherited

initial stress components

Definition at line 62 of file ComputeStressBase.h.

Referenced by ComputeStressBase::ComputeStressBase(), and ComputeStressBase::initQpStatefulProperties().

const MaterialProperty<RankTwoTensor>* ComputeStressBase::_initial_stress_old
protectedinherited

Old value of initial stress, which is needed to correctly implement finite-strain rotations. InitialStress Deprecation: remove this.

Definition at line 77 of file ComputeStressBase.h.

const bool ComputeStressBase::_initial_stress_provided
protectedinherited
bool FiniteStrainCrystalPlasticity::_input_rndm_scale_var
protected

Input option for scaling variable to generate random stress when convergence fails.

Definition at line 274 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveQp().

MooseEnum FiniteStrainCrystalPlasticity::_intvar_read_type
protected

Read from options for initial values of internal variables.

Definition at line 266 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCrystalPlasticity(), and initSlipSysProps().

MaterialProperty<RankFourTensor>& ComputeStressBase::_Jacobian_mult
protectedinherited
MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_lag_e
protected

Definition at line 304 of file FiniteStrainCrystalPlasticity.h.

Referenced by initQpStatefulProperties(), and postSolveQp().

const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_lag_e_old
protected

Definition at line 305 of file FiniteStrainCrystalPlasticity.h.

bool FiniteStrainCrystalPlasticity::_last_step_iter
protected
unsigned int FiniteStrainCrystalPlasticity::_lsrch_max_iter
protected

Line search bisection method maximum iteration number.

Definition at line 295 of file FiniteStrainCrystalPlasticity.h.

Referenced by line_search_update(), and FiniteStrainCPSlipRateRes::lineSearchUpdateSlipRate().

MooseEnum FiniteStrainCrystalPlasticity::_lsrch_method
protected
Real FiniteStrainCrystalPlasticity::_lsrch_tol
protected

Line search bisection method tolerance.

Definition at line 292 of file FiniteStrainCrystalPlasticity.h.

Referenced by line_search_update(), and FiniteStrainCPSlipRateRes::lineSearchUpdateSlipRate().

unsigned int FiniteStrainCrystalPlasticity::_max_substep_iter
protected

Maximum number of substep iterations.

Definition at line 283 of file FiniteStrainCrystalPlasticity.h.

Referenced by computeQpStress(), postSolveStatevar(), postSolveStress(), preSolveQp(), preSolveStatevar(), preSolveStress(), and updateGss().

unsigned int FiniteStrainCrystalPlasticity::_maxiter
protected

Maximum number of iterations for stress update.

Definition at line 255 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCPSlipRateRes::solveStress(), and solveStress().

unsigned int FiniteStrainCrystalPlasticity::_maxiterg
protected

Maximum number of iterations for internal variable update.

Definition at line 257 of file FiniteStrainCrystalPlasticity.h.

Referenced by solveStatevar().

const MaterialProperty<RankTwoTensor>& ComputeStressBase::_mechanical_strain
protectedinherited
Real FiniteStrainCrystalPlasticity::_min_lsrch_step
protected

Minimum line search step size.

Definition at line 289 of file FiniteStrainCrystalPlasticity.h.

Referenced by line_search_update(), and FiniteStrainCPSlipRateRes::lineSearchUpdateSlipRate().

DenseVector<Real> FiniteStrainCrystalPlasticity::_mo
protected

Definition at line 317 of file FiniteStrainCrystalPlasticity.h.

Referenced by calc_schmid_tensor(), and getSlipSystems().

DenseVector<Real> FiniteStrainCrystalPlasticity::_no
protected

Definition at line 318 of file FiniteStrainCrystalPlasticity.h.

Referenced by calc_schmid_tensor(), and getSlipSystems().

const unsigned int FiniteStrainCrystalPlasticity::_nss
protected
unsigned int FiniteStrainCrystalPlasticity::_num_slip_sys_flowrate_props
protected

Number of slip system flow rate parameters.

Definition at line 260 of file FiniteStrainCrystalPlasticity.h.

Referenced by getFlowRateParams(), and readFileFlowRateParams().

unsigned int FiniteStrainCrystalPlasticity::_num_slip_sys_props
protected

Number of slip system specific properties provided in the file containing slip system normals and directions.

Definition at line 269 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCrystalPlasticity(), and getSlipSystems().

MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_pk2
protected
const MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_pk2_old
protected

Definition at line 303 of file FiniteStrainCrystalPlasticity.h.

Referenced by preSolveStress().

RankTwoTensor FiniteStrainCrystalPlasticity::_pk2_tmp
protected
RankTwoTensor FiniteStrainCrystalPlasticity::_pk2_tmp_old
protected

Definition at line 333 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveStress(), and preSolveStress().

Real FiniteStrainCrystalPlasticity::_r
protected

Definition at line 326 of file FiniteStrainCrystalPlasticity.h.

Referenced by getHardnessParams(), and updateGss().

bool FiniteStrainCrystalPlasticity::_read_from_slip_sys_file
protected
Real FiniteStrainCrystalPlasticity::_rndm_scale_var
protected

Scaling value.

Definition at line 277 of file FiniteStrainCrystalPlasticity.h.

Referenced by postSolveQp().

unsigned int FiniteStrainCrystalPlasticity::_rndm_seed
protected

Seed value.

Definition at line 280 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCrystalPlasticity().

Real FiniteStrainCrystalPlasticity::_rtol
protected

Stress residual equation relative tolerance.

Definition at line 246 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCPSlipRateRes::solveStress(), and solveStress().

std::vector<RankTwoTensor> FiniteStrainCrystalPlasticity::_s0
protected
DenseVector<Real> FiniteStrainCrystalPlasticity::_slip_incr
protected
Real FiniteStrainCrystalPlasticity::_slip_incr_tol
protected

Slip increment tolerance.

Definition at line 252 of file FiniteStrainCrystalPlasticity.h.

Referenced by getSlipIncrements().

std::string FiniteStrainCrystalPlasticity::_slip_sys_file_name
protected

File should contain slip plane normal and direction. See test.

Definition at line 231 of file FiniteStrainCrystalPlasticity.h.

Referenced by getSlipSystems().

std::string FiniteStrainCrystalPlasticity::_slip_sys_flow_prop_file_name
protected

File should contain values of the flow rate equation parameters.

Values for every slip system must be provided. Should have the same order of slip systens as in slip_sys_file. See test. The option of reading all the properties from .i is still present.

Definition at line 240 of file FiniteStrainCrystalPlasticity.h.

Referenced by initSlipSysProps(), and readFileFlowRateParams().

std::string FiniteStrainCrystalPlasticity::_slip_sys_hard_prop_file_name
protected

The hardening parameters in this class are read from .i file. The user can override to read from file.

Definition at line 243 of file FiniteStrainCrystalPlasticity.h.

Referenced by initSlipSysProps().

DenseVector<Real> FiniteStrainCrystalPlasticity::_slip_sys_props
protected
std::string FiniteStrainCrystalPlasticity::_slip_sys_res_prop_file_name
protected

File should contain initial values of the slip system resistances.

Definition at line 234 of file FiniteStrainCrystalPlasticity.h.

Referenced by readFileInitSlipSysRes().

const bool ComputeStressBase::_store_stress_old
protectedinherited

Parameter which decides whether to store old stress. This is required for HHT time integration and Rayleigh damping.

Definition at line 68 of file ComputeStressBase.h.

MaterialProperty<RankTwoTensor>& ComputeStressBase::_stress
protectedinherited

Definition at line 53 of file ComputeStressBase.h.

Referenced by ComputeStressBase::addQpInitialStress(), ComputeMultipleInelasticCosseratStress::computeAdmissibleState(), ComputeMultipleInelasticStress::computeAdmissibleState(), ComputeStressBase::computeQpProperties(), ComputeStressEosBase::computeQpProperties(), ComputeBirchMurnaghanEquationOfStress::computeQpProperties(), ComputeLinearElasticStress::computeQpStress(), ComputeStrainIncrementBasedStress::computeQpStress(), ComputeLinearElasticPFFractureStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeIsotropicLinearElasticPFFractureStress::computeQpStress(), ComputeFiniteStrainElasticStressBirchMurnaghan::computeQpStress(), FiniteStrainPlasticMaterial::computeQpStress(), ComputeMultiPlasticityStress::computeQpStress(), ComputeSmearedCrackingStress::computeQpStress(), ComputeLinearViscoelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStressIntermediateConfiguration(), ComputeSmearedCrackingStress::crackingStressRotation(), ComputeMultipleInelasticStress::finiteStrainRotation(), ComputeStressBase::initQpStatefulProperties(), initQpStatefulProperties(), FiniteStrainUObasedCP::initQpStatefulProperties(), FiniteStrainHyperElasticViscoPlastic::initQpStatefulProperties(), ComputeMultiPlasticityStress::postReturnMap(), FiniteStrainUObasedCP::postSolveQp(), FiniteStrainHyperElasticViscoPlastic::postSolveQp(), postSolveQp(), ComputeMultipleInelasticStress::updateQpState(), ComputeMultipleInelasticStress::updateQpStateSingleModel(), and LinearIsoElasticPFDamage::updateVar().

MooseEnum FiniteStrainCrystalPlasticity::_tan_mod_type
protected

Type of tangent moduli calculation.

Definition at line 263 of file FiniteStrainCrystalPlasticity.h.

Referenced by calcTangentModuli().

DenseVector<Real> FiniteStrainCrystalPlasticity::_tau
protected
Real FiniteStrainCrystalPlasticity::_tau_init
protected

Definition at line 325 of file FiniteStrainCrystalPlasticity.h.

Referenced by getHardnessParams().

Real FiniteStrainCrystalPlasticity::_tau_sat
protected

Definition at line 324 of file FiniteStrainCrystalPlasticity.h.

Referenced by getHardnessParams(), and updateGss().

MaterialProperty<RankTwoTensor>& FiniteStrainCrystalPlasticity::_update_rot
protected

Definition at line 310 of file FiniteStrainCrystalPlasticity.h.

Referenced by initQpStatefulProperties(), and postSolveQp().

bool FiniteStrainCrystalPlasticity::_use_line_search
protected

Flag to activate line serach.

Definition at line 286 of file FiniteStrainCrystalPlasticity.h.

Referenced by FiniteStrainCPSlipRateRes::solveStress(), and solveStress().

DenseVector<Real> FiniteStrainCrystalPlasticity::_xm
protected

The documentation for this class was generated from the following files: