#include <StrainGradDispDerivatives.h>

Inheritance diagram for StrainGradDispDerivatives:

Public Member Functions
	StrainGradDispDerivatives (const InputParameters &parameters)

Protected Member Functions
virtual void	computeQpProperties ()

Protected Attributes
unsigned int	_nvar

unsigned int	_gdim

std::vector< MaterialProperty< RankTwoTensor > * >	_dstrain

Detailed Description

Definition at line 23 of file StrainGradDispDerivatives.h.

Constructor & Destructor Documentation

◆ StrainGradDispDerivatives()

StrainGradDispDerivatives::StrainGradDispDerivatives ( const InputParameters & parameters )

Definition at line 27 of file StrainGradDispDerivatives.C.

   : DerivativeMaterialInterface<Material>(parameters),
     _nvar(coupledComponents("displacement_gradients")),
     _dstrain(_nvar)
 {
   switch (_nvar)
   {
     case 1:
       _gdim = 1;
       break;
  
     case 4:
       _gdim = 2;
       break;
  
     case 9:
       _gdim = 3;
       break;
  
     default:
       mooseError("Supply 1, 4, or 9 displacement_gradient component variables");
   }
  
   if (_gdim > LIBMESH_DIM)
     mooseError("Too many gradient component variables for the current LIBMESH_DIM");
  
   for (unsigned int i = 0; i < _nvar; ++i)
     _dstrain[i] = &declarePropertyDerivative<RankTwoTensor>(
         "elastic_strain", getVar("displacement_gradients", i)->name());
 }

Member Function Documentation

◆ computeQpProperties()

void StrainGradDispDerivatives::computeQpProperties ( )

protectedvirtual

Definition at line 59 of file StrainGradDispDerivatives.C.

 {
   unsigned int i = 0;
   for (unsigned int j = 0; j < _gdim; ++j)
     for (unsigned int k = 0; k < _gdim; ++k)
     {
       (*_dstrain[i])[_qp].zero();
       (*_dstrain[i])[_qp](j, k) += 0.5;
       (*_dstrain[i])[_qp](k, j) += 0.5;
       ++i;
     }
 }