ComputeLinearElasticStress Class Reference

ComputeLinearElasticStress computes the stress following linear elasticity theory (small strains) More...

#include <ComputeLinearElasticStress.h>

Inheritance diagram for ComputeLinearElasticStress:

Public Member Functions
	ComputeLinearElasticStress (const InputParameters &parameters)
virtual void	initialSetup () override

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual void	computeQpStress () override
	Compute the stress and store it in the _stress material property for the current quadrature point. More...
virtual void	initQpStatefulProperties () override
virtual void	computeQpProperties () override

Protected Attributes
const std::string	_elasticity_tensor_name
	Name of the elasticity tensor material property. More...
const MaterialProperty< RankFourTensor > &	_elasticity_tensor
	Elasticity tensor material property. More...
const std::string	_base_name
	Base name prepended to all material property names to allow for multi-material systems. More...
const MaterialProperty< RankTwoTensor > &	_mechanical_strain
	Mechanical strain material property. More...
MaterialProperty< RankTwoTensor > &	_stress
	Stress material property. More...
MaterialProperty< RankTwoTensor > &	_elastic_strain
	Elastic strain material property. More...
const MaterialProperty< RankTwoTensor > &	_extra_stress
	Extra stress tensor. More...
std::vector< const Function * >	_initial_stress_fcn
	initial stress components More...
MaterialProperty< RankFourTensor > &	_Jacobian_mult
	derivative of stress w.r.t. strain (_dstress_dstrain) More...

Detailed Description

ComputeLinearElasticStress computes the stress following linear elasticity theory (small strains)

Definition at line 22 of file ComputeLinearElasticStress.h.

Constructor & Destructor Documentation

ComputeLinearElasticStress()

ComputeLinearElasticStress::ComputeLinearElasticStress

(

const InputParameters &

parameters

)

Definition at line 24 of file ComputeLinearElasticStress.C.

  : ComputeStressBase(parameters),
    _elasticity_tensor_name(_base_name + "elasticity_tensor"),
    _elasticity_tensor(getMaterialPropertyByName<RankFourTensor>(_elasticity_tensor_name))
{
}

Member Function Documentation

computeQpProperties()

void ComputeStressBase::computeQpProperties ( )

overrideprotectedvirtualinherited

Definition at line 50 of file ComputeStressBase.C.

{
  computeQpStress();
 
  // Add in extra stress
  _stress[_qp] += _extra_stress[_qp];
}

computeQpStress()

void ComputeLinearElasticStress::computeQpStress ( )

overrideprotectedvirtual

Compute the stress and store it in the _stress material property for the current quadrature point.

Implements ComputeStressBase.

Reimplemented in ComputeLinearViscoelasticStress.

Definition at line 41 of file ComputeLinearElasticStress.C.

{
  // stress = C * e
  _stress[_qp] = _elasticity_tensor[_qp] * _mechanical_strain[_qp];
 
  // Assign value for elastic strain, which is equal to the mechanical strain
  _elastic_strain[_qp] = _mechanical_strain[_qp];
 
  // Compute dstress_dstrain
  _Jacobian_mult[_qp] = _elasticity_tensor[_qp];
}

initialSetup()

void ComputeLinearElasticStress::initialSetup ( )

overridevirtual

Definition at line 32 of file ComputeLinearElasticStress.C.

{
  if (hasBlockMaterialProperty<RankTwoTensor>(_base_name + "strain_increment"))
    mooseError("This linear elastic stress calculation only works for small strains; use "
               "ComputeFiniteStrainElasticStress for simulations using incremental and finite "
               "strains.");
}

initQpStatefulProperties()

void ComputeStressBase::initQpStatefulProperties ( )

overrideprotectedvirtualinherited

Reimplemented in ComputeMultipleInelasticStress, ComputeMultipleInelasticCosseratStress, ComputeLinearViscoelasticStress, ComputeSmearedCrackingStress, ComputePFFractureStressBase, FiniteStrainHyperElasticViscoPlastic, FiniteStrainUObasedCP, FiniteStrainCrystalPlasticity, ComputeMultiPlasticityStress, FiniteStrainPlasticMaterial, and ComputeCosseratStressBase.

Definition at line 43 of file ComputeStressBase.C.

{
  _elastic_strain[_qp].zero();
  _stress[_qp].zero();
}

Referenced by ComputeCosseratStressBase::initQpStatefulProperties(), FiniteStrainPlasticMaterial::initQpStatefulProperties(), ComputeMultiPlasticityStress::initQpStatefulProperties(), and ComputeMultipleInelasticStress::initQpStatefulProperties().

validParams()

InputParameters ComputeLinearElasticStress::validParams ( )

static

Definition at line 17 of file ComputeLinearElasticStress.C.

{
  InputParameters params = ComputeStressBase::validParams();
  params.addClassDescription("Compute stress using elasticity for small strains");
  return params;
}

Referenced by ComputeLinearViscoelasticStress::validParams().

Member Data Documentation

_base_name

const std::string ComputeStressBase::_base_name

protectedinherited

Base name prepended to all material property names to allow for multi-material systems.

Definition at line 45 of file ComputeStressBase.h.

Referenced by initialSetup(), and ComputeCosseratLinearElasticStress::initialSetup().

_elastic_strain

MaterialProperty<RankTwoTensor>& ComputeStressBase::_elastic_strain

protectedinherited

Elastic strain material property.

Definition at line 52 of file ComputeStressBase.h.

Referenced by ComputeSmearedCrackingStress::computeCrackStrainAndOrientation(), computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), ComputeSmearedCrackingStress::computeQpStress(), FiniteStrainPlasticMaterial::computeQpStress(), ComputeMultiPlasticityStress::computeQpStress(), ComputeLinearViscoelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStressIntermediateConfiguration(), ComputeMultipleInelasticStress::finiteStrainRotation(), and ComputeStressBase::initQpStatefulProperties().

_elasticity_tensor

const MaterialProperty<RankFourTensor>& ComputeLinearElasticStress::_elasticity_tensor

protected

Elasticity tensor material property.

Definition at line 37 of file ComputeLinearElasticStress.h.

Referenced by computeQpStress(), and ComputeLinearViscoelasticStress::computeQpStress().

_elasticity_tensor_name

const std::string ComputeLinearElasticStress::_elasticity_tensor_name

protected

Name of the elasticity tensor material property.

Definition at line 35 of file ComputeLinearElasticStress.h.

_extra_stress

const MaterialProperty<RankTwoTensor>& ComputeStressBase::_extra_stress

protectedinherited

Extra stress tensor.

Definition at line 55 of file ComputeStressBase.h.

Referenced by ComputeStressBase::computeQpProperties().

_initial_stress_fcn

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

protectedinherited

initial stress components

Definition at line 58 of file ComputeStressBase.h.

_Jacobian_mult

MaterialProperty<RankFourTensor>& ComputeStressBase::_Jacobian_mult

protectedinherited

derivative of stress w.r.t. strain (_dstress_dstrain)

Definition at line 61 of file ComputeStressBase.h.

Referenced by ComputeStrainIncrementBasedStress::computeQpJacobian(), FiniteStrainHyperElasticViscoPlastic::computeQpJacobian(), ComputeMultipleInelasticCosseratStress::computeQpJacobianMult(), ComputeMultipleInelasticStress::computeQpJacobianMult(), computeQpStress(), ComputeDamageStress::computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), ComputeSmearedCrackingStress::computeQpStress(), FiniteStrainPlasticMaterial::computeQpStress(), ComputeLinearElasticPFFractureStress::computeQpStress(), ComputeMultiPlasticityStress::computeQpStress(), ComputeLinearViscoelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStressIntermediateConfiguration(), ComputeLinearElasticPFFractureStress::computeStrainSpectral(), ComputeLinearElasticPFFractureStress::computeStrainVolDev(), ComputeLinearElasticPFFractureStress::computeStressSpectral(), FiniteStrainUObasedCP::elasticTangentModuli(), FiniteStrainUObasedCP::elastoPlasticTangentModuli(), ComputeMultipleInelasticStress::finiteStrainRotation(), ComputeMultiPlasticityStress::postReturnMap(), FiniteStrainCrystalPlasticity::postSolveQp(), FiniteStrainCrystalPlasticity::preSolveQp(), and ComputeMultipleInelasticStress::updateQpStateSingleModel().

_mechanical_strain

const MaterialProperty<RankTwoTensor>& ComputeStressBase::_mechanical_strain

protectedinherited

Mechanical strain material property.

Definition at line 48 of file ComputeStressBase.h.

Referenced by computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), FiniteStrainPlasticMaterial::computeQpStress(), ComputeLinearElasticPFFractureStress::computeQpStress(), ComputeLinearViscoelasticStress::computeQpStress(), ComputeLinearElasticPFFractureStress::computeStrainSpectral(), ComputeLinearElasticPFFractureStress::computeStrainVolDev(), and ComputeLinearElasticPFFractureStress::computeStressSpectral().

_stress

MaterialProperty<RankTwoTensor>& ComputeStressBase::_stress

protectedinherited

Stress material property.

Definition at line 50 of file ComputeStressBase.h.

Referenced by ComputeMultipleInelasticCosseratStress::computeAdmissibleState(), ComputeMultipleInelasticStress::computeAdmissibleState(), ComputeStressBase::computeQpProperties(), ComputeStrainIncrementBasedStress::computeQpStress(), computeQpStress(), ComputeDamageStress::computeQpStress(), ComputeFiniteStrainElasticStress::computeQpStress(), ComputeCosseratLinearElasticStress::computeQpStress(), ComputeSmearedCrackingStress::computeQpStress(), ComputeLinearElasticPFFractureStress::computeQpStress(), FiniteStrainPlasticMaterial::computeQpStress(), ComputeMultiPlasticityStress::computeQpStress(), ComputeLinearViscoelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStress(), ComputeMultipleInelasticStress::computeQpStressIntermediateConfiguration(), ComputeLinearElasticPFFractureStress::computeStrainSpectral(), ComputeLinearElasticPFFractureStress::computeStrainVolDev(), ComputeLinearElasticPFFractureStress::computeStressSpectral(), ComputeMultipleInelasticStress::finiteStrainRotation(), ComputeStressBase::initQpStatefulProperties(), FiniteStrainCrystalPlasticity::initQpStatefulProperties(), FiniteStrainUObasedCP::initQpStatefulProperties(), FiniteStrainHyperElasticViscoPlastic::initQpStatefulProperties(), ComputeMultiPlasticityStress::postReturnMap(), FiniteStrainUObasedCP::postSolveQp(), FiniteStrainHyperElasticViscoPlastic::postSolveQp(), FiniteStrainCrystalPlasticity::postSolveQp(), ComputeSmearedCrackingStress::updateCrackingStateAndStress(), ComputeMultipleInelasticStress::updateQpState(), and ComputeMultipleInelasticStress::updateQpStateSingleModel().

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

• tensor_mechanics/include/materials/ComputeLinearElasticStress.h
• tensor_mechanics/src/materials/ComputeLinearElasticStress.C