ADComputeIncrementalSmallStrain defines a strain increment and rotation increment (=1), for small strains. More...

#include <ADComputeIncrementalSmallStrain.h>

Inheritance diagram for ADComputeIncrementalSmallStrain< compute_stage >:

Public Member Functions
	ADComputeIncrementalSmallStrain (const InputParameters &parameters)

virtual void	computeProperties () override

void	initialSetup () override

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual void	computeTotalStrainIncrement (ADRankTwoTensor &total_strain_increment)
	Computes the current and old deformation gradients and passes back the total strain increment tensor. More...

virtual void	initQpStatefulProperties () override

void	subtractEigenstrainIncrementFromStrain (ADRankTwoTensor &strain)

	ADMaterialProperty (RankTwoTensor) &_strain_rate

	ADMaterialProperty (RankTwoTensor) &_strain_increment

	ADMaterialProperty (RankTwoTensor) &_rotation_increment

const	ADMaterialProperty (RankTwoTensor) *_global_strain

virtual void	displacementIntegrityCheck ()

Protected Attributes
	usingComputeIncrementalStrainBaseMembers

std::vector< const VariableGradient * >	_grad_disp_old

const MaterialProperty< RankTwoTensor > &	_mechanical_strain_old

const MaterialProperty< RankTwoTensor > &	_total_strain_old

std::vector< const MaterialProperty< RankTwoTensor > * >	_eigenstrains_old

	usingComputeStrainBaseMembers

const unsigned int	_ndisp
	Coupled displacement variables. More...

std::vector< const ADVariableValue * >	_disp

std::vector< const ADVariableGradient * >	_grad_disp

const std::string	_base_name

std::vector< MaterialPropertyName >	_eigenstrain_names

std::vector< const ADMaterialProperty(RankTwoTensor) * >	_eigenstrains

const bool	_volumetric_locking_correction

const Real &	_current_elem_volume

	usingMaterialMembers

Detailed Description

template<ComputeStage compute_stage>
class ADComputeIncrementalSmallStrain< compute_stage >

ADComputeIncrementalSmallStrain defines a strain increment and rotation increment (=1), for small strains.

Definition at line 19 of file ADComputeIncrementalSmallStrain.h.

Constructor & Destructor Documentation

◆ ADComputeIncrementalSmallStrain()

template<ComputeStage compute_stage>

ADComputeIncrementalSmallStrain< compute_stage >::ADComputeIncrementalSmallStrain ( const InputParameters & parameters )

Definition at line 28 of file ADComputeIncrementalSmallStrain.C.

   : ADComputeIncrementalStrainBase<compute_stage>(parameters)
 {
 }

Member Function Documentation

◆ ADMaterialProperty() [1/4]

template<ComputeStage compute_stage>

ADComputeIncrementalStrainBase< compute_stage >::ADMaterialProperty ( RankTwoTensor ) &

protectedinherited

◆ ADMaterialProperty() [2/4]

template<ComputeStage compute_stage>

ADComputeIncrementalStrainBase< compute_stage >::ADMaterialProperty ( RankTwoTensor ) &

protectedinherited

◆ ADMaterialProperty() [3/4]

template<ComputeStage compute_stage>

ADComputeIncrementalStrainBase< compute_stage >::ADMaterialProperty ( RankTwoTensor ) &

protectedinherited

◆ ADMaterialProperty() [4/4]

template<ComputeStage compute_stage>

const ADComputeStrainBase< compute_stage >::ADMaterialProperty ( RankTwoTensor )

protectedinherited

◆ computeProperties()

template<ComputeStage compute_stage>

void ADComputeIncrementalSmallStrain< compute_stage >::computeProperties ( )

overridevirtual

Definition at line 36 of file ADComputeIncrementalSmallStrain.C.

 {
   ADReal volumetric_strain = 0.0;
   for (_qp = 0; _qp < _qrule->n_points(); ++_qp)
   {
     ADRankTwoTensor total_strain_increment;
     computeTotalStrainIncrement(total_strain_increment);
  
     _strain_increment[_qp] = total_strain_increment;
  
     if (_volumetric_locking_correction)
       volumetric_strain += total_strain_increment.trace() * _JxW[_qp] * _coord[_qp];
   }
  
   if (_volumetric_locking_correction)
     volumetric_strain /= _current_elem_volume;
  
   for (_qp = 0; _qp < _qrule->n_points(); ++_qp)
   {
     if (_volumetric_locking_correction)
     {
       const auto correction = (volumetric_strain - _strain_increment[_qp].trace()) / 3.0;
       _strain_increment[_qp](0, 0) += correction;
       _strain_increment[_qp](1, 1) += correction;
       _strain_increment[_qp](2, 2) += correction;
     }
  
     _total_strain[_qp] = _strain_increment[_qp] + _total_strain_old[_qp];
  
     // Remove the Eigen strain increment
     subtractEigenstrainIncrementFromStrain(_strain_increment[_qp]);
  
     // strain rate
     if (_dt > 0)
       _strain_rate[_qp] = _strain_increment[_qp] / _dt;
     else
       _strain_rate[_qp].zero();
  
     // Update strain in intermediate configuration: rotations are not needed
     _mechanical_strain[_qp] = _strain_increment[_qp] + _mechanical_strain_old[_qp];
  
     // incremental small strain does not include rotation
     _rotation_increment[_qp].setToIdentity();
   }
  
   copyDualNumbersToValues();
 }

◆ computeTotalStrainIncrement()

template<ComputeStage compute_stage>

void ADComputeIncrementalSmallStrain< compute_stage >::computeTotalStrainIncrement ( ADRankTwoTensor & total_strain_increment )

protectedvirtual

Computes the current and old deformation gradients and passes back the total strain increment tensor.

Reimplemented in ADCompute2DIncrementalStrain< compute_stage >, ADCompute1DIncrementalStrain< compute_stage >, and ADComputeRSphericalIncrementalStrain< compute_stage >.

Definition at line 86 of file ADComputeIncrementalSmallStrain.C.

 {
   // Deformation gradient
   ADRankTwoTensor A(
       (*_grad_disp[0])[_qp], (*_grad_disp[1])[_qp], (*_grad_disp[2])[_qp]); // Deformation gradient
   RankTwoTensor Fbar((*_grad_disp_old[0])[_qp],
                      (*_grad_disp_old[1])[_qp],
                      (*_grad_disp_old[2])[_qp]); // Old Deformation gradient
  
   A -= Fbar; // A = grad_disp - grad_disp_old
  
   total_strain_increment = 0.5 * (A + A.transpose());
 }

◆ displacementIntegrityCheck()

template<ComputeStage compute_stage>

void ADComputeStrainBase< compute_stage >::displacementIntegrityCheck ( )

protectedvirtualinherited

Reimplemented in ADCompute2DFiniteStrain< compute_stage >, ADCompute2DIncrementalStrain< compute_stage >, and ADCompute2DSmallStrain< compute_stage >.

Definition at line 93 of file ADComputeStrainBase.C.

 {
   // Checking for consistency between mesh size and length of the provided displacements vector
   if (_ndisp != _mesh.dimension())
     paramError(
         "displacements",
         "The number of variables supplied in 'displacements' must match the mesh dimension.");
 }

◆ initialSetup()

template<ComputeStage compute_stage>

void ADComputeIncrementalStrainBase< compute_stage >::initialSetup ( )

overrideinherited

Definition at line 41 of file ADComputeIncrementalStrainBase.C.

 {
   ADComputeStrainBase<compute_stage>::initialSetup();
   for (unsigned int i = 0; i < 3; ++i)
   {
     if (_fe_problem.isTransient() && i < _ndisp)
       _grad_disp_old[i] = &coupledGradientOld("displacements", i);
     else
       _grad_disp_old[i] = &_grad_zero;
   }
 }

Referenced by ADComputeAxisymmetricRZIncrementalStrain< compute_stage >::initialSetup(), ADComputeRSphericalFiniteStrain< compute_stage >::initialSetup(), and ADComputeRSphericalIncrementalStrain< compute_stage >::initialSetup().

◆ initQpStatefulProperties()

template<ComputeStage compute_stage>

void ADComputeIncrementalStrainBase< compute_stage >::initQpStatefulProperties ( )

overrideprotectedvirtualinherited

Reimplemented from ADComputeStrainBase< compute_stage >.

Definition at line 55 of file ADComputeIncrementalStrainBase.C.

 {
   _mechanical_strain[_qp].zero();
   _total_strain[_qp].zero();
 }

◆ subtractEigenstrainIncrementFromStrain()

template<ComputeStage compute_stage>

void ADComputeIncrementalStrainBase< compute_stage >::subtractEigenstrainIncrementFromStrain ( ADRankTwoTensor & strain )

protectedinherited

Definition at line 63 of file ADComputeIncrementalStrainBase.C.

 {
   for (unsigned int i = 0; i < _eigenstrains.size(); ++i)
   {
     strain -= (*_eigenstrains[i])[_qp];
     strain += (*_eigenstrains_old[i])[_qp];
   }
 }

◆ validParams()

template<ComputeStage compute_stage>

InputParameters ADComputeIncrementalSmallStrain< compute_stage >::validParams ( )

static

Definition at line 19 of file ADComputeIncrementalSmallStrain.C.

 {
   InputParameters params = ADComputeIncrementalStrainBase<compute_stage>::validParams();
   params.addClassDescription(
       "Compute a strain increment and rotation increment for small strains.");
   return params;
 }

Referenced by ADComputeRSphericalIncrementalStrain< compute_stage >::validParams(), ADCompute1DIncrementalStrain< compute_stage >::validParams(), and ADCompute2DIncrementalStrain< compute_stage >::validParams().

Member Data Documentation

◆ _base_name

template<ComputeStage compute_stage>

const std::string ADComputeStrainBase< compute_stage >::_base_name

protectedinherited

Definition at line 60 of file ADComputeStrainBase.h.

Referenced by ADComputeStrainBase< compute_stage >::ADComputeStrainBase().

◆ _current_elem_volume

template<ComputeStage compute_stage>

const Real& ADComputeStrainBase< compute_stage >::_current_elem_volume

protectedinherited

Definition at line 71 of file ADComputeStrainBase.h.

◆ _disp

template<ComputeStage compute_stage>

std::vector<const ADVariableValue *> ADComputeStrainBase< compute_stage >::_disp

protectedinherited

Definition at line 57 of file ADComputeStrainBase.h.

◆ _eigenstrain_names

template<ComputeStage compute_stage>

std::vector<MaterialPropertyName> ADComputeStrainBase< compute_stage >::_eigenstrain_names

protectedinherited

Definition at line 65 of file ADComputeStrainBase.h.

Referenced by ADComputeIncrementalStrainBase< compute_stage >::ADComputeIncrementalStrainBase(), and ADComputeStrainBase< compute_stage >::ADComputeStrainBase().

◆ _eigenstrains

template<ComputeStage compute_stage>

std::vector<const ADMaterialProperty(RankTwoTensor) *> ADComputeStrainBase< compute_stage >::_eigenstrains

protectedinherited

Definition at line 66 of file ADComputeStrainBase.h.

Referenced by ADComputeGreenLagrangeStrain< compute_stage >::ADComputeGreenLagrangeStrain(), and ADComputeStrainBase< compute_stage >::ADComputeStrainBase().

◆ _eigenstrains_old

template<ComputeStage compute_stage>

std::vector<const MaterialProperty<RankTwoTensor> *> ADComputeIncrementalStrainBase< compute_stage >::_eigenstrains_old

protectedinherited

Definition at line 58 of file ADComputeIncrementalStrainBase.h.

Referenced by ADComputeIncrementalStrainBase< compute_stage >::ADComputeIncrementalStrainBase().

◆ _grad_disp

template<ComputeStage compute_stage>

std::vector<const ADVariableGradient *> ADComputeStrainBase< compute_stage >::_grad_disp

protectedinherited

Definition at line 58 of file ADComputeStrainBase.h.

◆ _grad_disp_old

template<ComputeStage compute_stage>

std::vector<const VariableGradient *> ADComputeIncrementalStrainBase< compute_stage >::_grad_disp_old

protectedinherited

Definition at line 49 of file ADComputeIncrementalStrainBase.h.

◆ _mechanical_strain_old

template<ComputeStage compute_stage>

const MaterialProperty<RankTwoTensor>& ADComputeIncrementalStrainBase< compute_stage >::_mechanical_strain_old

protectedinherited

Definition at line 55 of file ADComputeIncrementalStrainBase.h.

◆ _ndisp

template<ComputeStage compute_stage>

const unsigned int ADComputeStrainBase< compute_stage >::_ndisp

protectedinherited

Coupled displacement variables.

Definition at line 56 of file ADComputeStrainBase.h.

Referenced by ADComputeStrainBase< compute_stage >::ADComputeStrainBase().

◆ _total_strain_old

template<ComputeStage compute_stage>

const MaterialProperty<RankTwoTensor>& ADComputeIncrementalStrainBase< compute_stage >::_total_strain_old

protectedinherited

Definition at line 56 of file ADComputeIncrementalStrainBase.h.

◆ _volumetric_locking_correction

template<ComputeStage compute_stage>

const bool ADComputeStrainBase< compute_stage >::_volumetric_locking_correction

protectedinherited

Definition at line 70 of file ADComputeStrainBase.h.

Referenced by ADComputeGreenLagrangeStrain< compute_stage >::ADComputeGreenLagrangeStrain(), and ADComputeStrainBase< compute_stage >::ADComputeStrainBase().

◆ usingComputeIncrementalStrainBaseMembers

template<ComputeStage compute_stage>

ADComputeIncrementalSmallStrain< compute_stage >::usingComputeIncrementalStrainBaseMembers

protected

Definition at line 44 of file ADComputeIncrementalSmallStrain.h.

◆ usingComputeStrainBaseMembers

template<ComputeStage compute_stage>

ADComputeIncrementalStrainBase< compute_stage >::usingComputeStrainBaseMembers

protectedinherited

Definition at line 60 of file ADComputeIncrementalStrainBase.h.

◆ usingMaterialMembers

template<ComputeStage compute_stage>

ADComputeStrainBase< compute_stage >::usingMaterialMembers

protectedinherited

Definition at line 73 of file ADComputeStrainBase.h.

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

tensor_mechanics/include/materials/ADComputeIncrementalSmallStrain.h
tensor_mechanics/src/materials/ADComputeIncrementalSmallStrain.C

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<ComputeStage compute_stage> class ADComputeIncrementalSmallStrain< compute_stage >

Constructor & Destructor Documentation

◆ ADComputeIncrementalSmallStrain()

Member Function Documentation

◆ ADMaterialProperty() [1/4]

◆ ADMaterialProperty() [2/4]

◆ ADMaterialProperty() [3/4]

◆ ADMaterialProperty() [4/4]

◆ computeProperties()

◆ computeTotalStrainIncrement()

◆ displacementIntegrityCheck()

◆ initialSetup()

◆ initQpStatefulProperties()

◆ subtractEigenstrainIncrementFromStrain()

◆ validParams()

Member Data Documentation

◆ _base_name

◆ _current_elem_volume

◆ _disp

◆ _eigenstrain_names

◆ _eigenstrains

◆ _eigenstrains_old

◆ _grad_disp

◆ _grad_disp_old

◆ _mechanical_strain_old

◆ _ndisp

◆ _total_strain_old

◆ _volumetric_locking_correction

◆ usingComputeIncrementalStrainBaseMembers

◆ usingComputeStrainBaseMembers

◆ usingMaterialMembers

template<ComputeStage compute_stage>
class ADComputeIncrementalSmallStrain< compute_stage >