ComputeThermalExpansionEigenstrain computes an eigenstrain for thermal expansion with a constant expansion coefficient. More...

#include <ComputeThermalExpansionEigenstrain.h>

Inheritance diagram for ComputeThermalExpansionEigenstrain:

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Public Member Functions
	ComputeThermalExpansionEigenstrain (const InputParameters &parameters)

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual void	computeThermalStrain (Real &thermal_strain, Real &instantaneous_cte) override

virtual void	computeQpEigenstrain () override

Protected Attributes
const Real &	_thermal_expansion_coeff

const VariableValue &	_temperature

MaterialProperty< RankTwoTensor > &	_deigenstrain_dT

const VariableValue &	_stress_free_temperature

Detailed Description

ComputeThermalExpansionEigenstrain computes an eigenstrain for thermal expansion with a constant expansion coefficient.

Definition at line 24 of file ComputeThermalExpansionEigenstrain.h.

Constructor & Destructor Documentation

◆ ComputeThermalExpansionEigenstrain()

ComputeThermalExpansionEigenstrain::ComputeThermalExpansionEigenstrain ( const InputParameters & parameters )

Definition at line 27 of file ComputeThermalExpansionEigenstrain.C.

   : ComputeThermalExpansionEigenstrainBase(parameters),
     _thermal_expansion_coeff(getParam<Real>("thermal_expansion_coeff"))
 {
 }

Member Function Documentation

◆ computeQpEigenstrain()

void ComputeThermalExpansionEigenstrainBase::computeQpEigenstrain ( )

overrideprotectedvirtualinherited

Definition at line 38 of file ComputeThermalExpansionEigenstrainBase.C.

 {
   Real thermal_strain = 0.0;
  
   // instantaneous_cte is just the derivative of thermal_strain with respect to temperature
   Real instantaneous_cte = 0.0;
  
   computeThermalStrain(thermal_strain, instantaneous_cte);
  
   _eigenstrain[_qp].zero();
   _eigenstrain[_qp].addIa(thermal_strain);
  
   _deigenstrain_dT[_qp].zero();
   _deigenstrain_dT[_qp].addIa(instantaneous_cte);
 }

◆ computeThermalStrain()

void ComputeThermalExpansionEigenstrain::computeThermalStrain	(	Real &	thermal_strain,
		Real &	instantaneous_cte
	)

overrideprotectedvirtual

Implements ComputeThermalExpansionEigenstrainBase.

Definition at line 35 of file ComputeThermalExpansionEigenstrain.C.

 {
   thermal_strain = _thermal_expansion_coeff * (_temperature[_qp] - _stress_free_temperature[_qp]);
   instantaneous_cte = _thermal_expansion_coeff;
 }

◆ validParams()

InputParameters ComputeThermalExpansionEigenstrain::validParams ( )

static

Definition at line 17 of file ComputeThermalExpansionEigenstrain.C.

 {
   InputParameters params = ComputeThermalExpansionEigenstrainBase::validParams();
   params.addClassDescription("Computes eigenstrain due to thermal expansion "
                              "with a constant coefficient");
   params.addRequiredParam<Real>("thermal_expansion_coeff", "Thermal expansion coefficient");
  
   return params;
 }