Crack Front Data

!syntax description /Postprocessors/CrackFrontData

Description

This object is a utility function used to output values of nodal variables at nodes along a crack front used in a fracture domain integral calculation. This is useful for tying information about solution variables to the computed fracture integrals at specific points. The definition of the crack points must be provided using a CrackFrontDefinition object, which is typically set up automatically using a DomainIntegralAction.

Example Input File Syntax

[./disp_x_centercrack]
  type = CrackFrontData
  crack_front_definition = crackFrontDefinition
  variable = disp_x
  crack_front_point_index = 1
[../]
(modules/tensor_mechanics/test/tests/j_integral/j_integral_3d.i)

Input Parameters

  • crack_front_definitionThe CrackFrontDefinition user object name

    C++ Type:UserObjectName

    Options:

    Description:The CrackFrontDefinition user object name

  • variableThe name of a variable whose value at the crack front is to be reported

    C++ Type:VariableName

    Options:

    Description:The name of a variable whose value at the crack front is to be reported

Required Parameters

  • execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

    Default:TIMESTEP_END

    C++ Type:ExecFlagEnum

    Options:NONE INITIAL LINEAR NONLINEAR TIMESTEP_END TIMESTEP_BEGIN FINAL CUSTOM

    Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

  • crack_front_point_indexThe index of the point on the crack front where data is to be reported

    C++ Type:unsigned int

    Options:

    Description:The index of the point on the crack front where data is to be reported

  • scale_factor1A scale factor to be applied to the reported quantity

    Default:1

    C++ Type:double

    Options:

    Description:A scale factor to be applied to the reported quantity

Optional Parameters

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Options:

    Description:Set the enabled status of the MooseObject.

  • use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

    Default:False

    C++ Type:bool

    Options:

    Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

  • outputsVector of output names were you would like to restrict the output of variables(s) associated with this object

    C++ Type:std::vector

    Options:

    Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector

    Options:

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

    Default:False

    C++ Type:bool

    Options:

    Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

  • force_preauxFalseForces the GeneralUserObject to be executed in PREAUX

    Default:False

    C++ Type:bool

    Options:

    Description:Forces the GeneralUserObject to be executed in PREAUX

Advanced Parameters

Input Files