DomainIntegralQFunction

!syntax description /AuxKernels/DomainIntegralQFunction

Description

This object is used to compute the value of the function used in the computation of fracture domain integrals, as described in FractureIntegrals. The function is computed based on the distance of a given point from the crack front. It evaluates to 1 if the point is within the inner radius of the integration domain, 0 if it is beyond the outer radius, and is linearly interpolated between the inner and outer radius. In 3-dimensional simulations, this function also ramps up linearly from 0 to its full value based on its position tangentially along a crack relative to the point that it is associated with along the crack front along the segments of the crack front connected to that point.

This object is not typically directly defined by a user, but is defined using the DomainIntegralAction block. Also, this object is used only for output purposes for debugging models, as the actual value of the function used in the computation is computed by the fracture domain integral Postprocessor objects.

Input Parameters

  • crack_front_definitionThe CrackFrontDefinition user object name

    C++ Type:UserObjectName

    Options:

    Description:The CrackFrontDefinition user object name

  • j_integral_radius_innerRadius for J-Integral calculation

    C++ Type:double

    Options:

    Description:Radius for J-Integral calculation

  • variableThe name of the variable that this object applies to

    C++ Type:AuxVariableName

    Options:

    Description:The name of the variable that this object applies to

  • j_integral_radius_outerRadius for J-Integral calculation

    C++ Type:double

    Options:

    Description:Radius for J-Integral calculation

Required Parameters

  • execute_onLINEAR TIMESTEP_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:LINEAR 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.

  • boundaryThe list of boundary IDs from the mesh where this boundary condition applies

    C++ Type:std::vector

    Options:

    Description:The list of boundary IDs from the mesh where this boundary condition applies

  • crack_front_point_indexThe index of the point on the crack front corresponding to this q function

    C++ Type:unsigned int

    Options:

    Description:The index of the point on the crack front corresponding to this q function

  • blockThe list of block ids (SubdomainID) that this object will be applied

    C++ Type:std::vector

    Options:

    Description:The list of block ids (SubdomainID) that this object will be applied

Optional Parameters

  • 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.

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Options:

    Description:Set the enabled status of the MooseObject.

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Options:

    Description:The seed for the master random number generator

  • 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.

Advanced Parameters