- displacementsDisplacement variables
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:Displacement variables
- out_of_plane_strainThe out-of-plane strain
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:The out-of-plane strain
ComputeLagrangianWPSStrain
Compute strain in Cartesian coordinates.
Overview
The ComputeLagrangianWPSStrain inherits from ComputeLagrangianStrain. Only two displacement variables are coupled to compute the in-plane strain components. The out-of-plane strain is provided by another nonlinear variable served as a Lagrange multiplier to weakly enforce the plane stress condition.
Input Parameters
- F_bar_modetotalWhat deformation gradient F-bar averages over (only used when `stabilize_strain = true`). 'total' (default) averages the full F at each qp and rescales each qp's F by cbrt(det(F_avg)/det(F_ust)). 'incremental' averages the incremental F (F_ust * F_ust_old^{-1}) at each qp and rescales by cbrt(det(f_avg)/det(f_ust)); this is bit-for-bit compatible with the OLD `ComputeFiniteStrain` + `volumetric_locking_correction = true` formulation. Set to 'incremental' when cross-checking against the old kernel system.
Default:total
C++ Type:MooseEnum
Controllable:No
Description:What deformation gradient F-bar averages over (only used when `stabilize_strain = true`). 'total' (default) averages the full F at each qp and rescales each qp's F by cbrt(det(F_avg)/det(F_ust)). 'incremental' averages the incremental F (F_ust * F_ust_old^{-1}) at each qp and rescales by cbrt(det(f_avg)/det(f_ust)); this is bit-for-bit compatible with the OLD `ComputeFiniteStrain` + `volumetric_locking_correction = true` formulation. Set to 'incremental' when cross-checking against the old kernel system.
- alpha1Generalized midpoint weight for the deformation gradient. 1.0 = backward Euler (default), 0.5 = midpoint rule (matches Abaqus/Implicit).
Default:1
C++ Type:double
Unit:(no unit assumed)
Range:alpha >= 0.5 & alpha <= 1.0
Controllable:No
Description:Generalized midpoint weight for the deformation gradient. 1.0 = backward Euler (default), 0.5 = midpoint rule (matches Abaqus/Implicit).
- base_nameMaterial property base name
C++ Type:std::string
Controllable:No
Description:Material property base name
- 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
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
- declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
- eigenstrain_namesList of eigenstrains to account for
C++ Type:std::vector<MaterialPropertyName>
Unit:(no unit assumed)
Controllable:No
Description:List of eigenstrains to account for
- homogenization_gradient_namesList of homogenization gradients to add to the displacement gradient
C++ Type:std::vector<MaterialPropertyName>
Unit:(no unit assumed)
Controllable:No
Description:List of homogenization gradients to add to the displacement gradient
- kinematic_approximationlinearApproximation to the increment in the spatial velocity gradient: 'linear' (default; dL = I - f^{-1}), 'quadratic' (one more Taylor term), 'rashid_approximate' (Rashid's symmetric+skew formulas), or 'rashid_eigen' (exact log f via polar decomposition + matrix logs). Only affects large_kinematics; small kinematics is always linear.
Default:linear
C++ Type:MooseEnum
Controllable:No
Description:Approximation to the increment in the spatial velocity gradient: 'linear' (default; dL = I - f^{-1}), 'quadratic' (one more Taylor term), 'rashid_approximate' (Rashid's symmetric+skew formulas), or 'rashid_eigen' (exact log f via polar decomposition + matrix logs). Only affects large_kinematics; small kinematics is always linear.
- large_kinematicsFalseUse large displacement kinematics in the kernel.
Default:False
C++ Type:bool
Controllable:No
Description:Use large displacement kinematics in the kernel.
- publish_rotation_incrementFalseIf true, publish `rotation_increment = exp(vorticity_increment)` (Rodrigues) for downstream consumers that rotate by it (e.g. `ComputeMultiPlasticityStress` with `perform_finite_strain_rotations = true`). Default false keeps `rotation_increment = I` (the historical behavior -- the Lagrangian objective-rate machinery applies rotation externally). Enable when wrapping plasticity that needs its internal stress state to track the rotated Cauchy stress between steps, in tandem with `rotate_old_stress = true` on the objective rate.
Default:False
C++ Type:bool
Controllable:No
Description:If true, publish `rotation_increment = exp(vorticity_increment)` (Rodrigues) for downstream consumers that rotate by it (e.g. `ComputeMultiPlasticityStress` with `perform_finite_strain_rotations = true`). Default false keeps `rotation_increment = I` (the historical behavior -- the Lagrangian objective-rate machinery applies rotation externally). Enable when wrapping plasticity that needs its internal stress state to track the rotated Cauchy stress between steps, in tandem with `rotate_old_stress = true` on the objective rate.
- stabilize_strainFalseAverage the volumetric strains
Default:False
C++ Type:bool
Controllable:No
Description:Average the volumetric strains
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
- search_methodnearest_node_connected_sidesChoice of search algorithm. All options begin by finding the nearest node in the primary boundary to a query point in the secondary boundary. In the default nearest_node_connected_sides algorithm, primary boundary elements are searched iff that nearest node is one of their nodes. This is fast to determine via a pregenerated node-to-elem map and is robust on conforming meshes. In the optional all_proximate_sides algorithm, primary boundary elements are searched iff they touch that nearest node, even if they are not topologically connected to it. This is more CPU-intensive but is necessary for robustness on any boundary surfaces which has disconnections (such as Flex IGA meshes) or non-conformity (such as hanging nodes in adaptively h-refined meshes).
Default:nearest_node_connected_sides
C++ Type:MooseEnum
Controllable:No
Description:Choice of search algorithm. All options begin by finding the nearest node in the primary boundary to a query point in the secondary boundary. In the default nearest_node_connected_sides algorithm, primary boundary elements are searched iff that nearest node is one of their nodes. This is fast to determine via a pregenerated node-to-elem map and is robust on conforming meshes. In the optional all_proximate_sides algorithm, primary boundary elements are searched iff they touch that nearest node, even if they are not topologically connected to it. This is more CPU-intensive but is necessary for robustness on any boundary surfaces which has disconnections (such as Flex IGA meshes) or non-conformity (such as hanging nodes in adaptively h-refined meshes).
- 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
- 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
Unit:(no unit assumed)
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.
- 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.