ComputeThermalExpansionEigenstrainBase is a base class for all models that compute eigenstrains due to thermal expansion of a material. More...

#include <ComputeThermalExpansionEigenstrainBase.h>

Inheritance diagram for ComputeThermalExpansionEigenstrainBase:

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Public Member Functions
	ComputeThermalExpansionEigenstrainBase (const InputParameters &parameters)

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual void	computeQpEigenstrain () override

virtual void	computeThermalStrain (Real &thermal_strain, Real &instantaneous_cte)=0

Protected Attributes
const VariableValue &	_temperature

MaterialProperty< RankTwoTensor > &	_deigenstrain_dT

const VariableValue &	_stress_free_temperature

Detailed Description

ComputeThermalExpansionEigenstrainBase is a base class for all models that compute eigenstrains due to thermal expansion of a material.

Definition at line 27 of file ComputeThermalExpansionEigenstrainBase.h.

Constructor & Destructor Documentation

◆ ComputeThermalExpansionEigenstrainBase()

ComputeThermalExpansionEigenstrainBase::ComputeThermalExpansionEigenstrainBase ( const InputParameters & parameters )

Definition at line 27 of file ComputeThermalExpansionEigenstrainBase.C.

   : DerivativeMaterialInterface<ComputeEigenstrainBase>(parameters),
     _temperature(coupledValue("temperature")),
     _deigenstrain_dT(declarePropertyDerivative<RankTwoTensor>(_eigenstrain_name,
                                                               getVar("temperature", 0)->name())),
     _stress_free_temperature(coupledValue("stress_free_temperature"))
 {
 }

Member Function Documentation

◆ computeQpEigenstrain()

void ComputeThermalExpansionEigenstrainBase::computeQpEigenstrain ( )

overrideprotectedvirtual

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()

virtual void ComputeThermalExpansionEigenstrainBase::computeThermalStrain	(	Real &	thermal_strain,
		Real &	instantaneous_cte
	)

protectedpure virtual

Implemented in ComputeMeanThermalExpansionEigenstrainBase, ComputeInstantaneousThermalExpansionFunctionEigenstrain, ComputeDilatationThermalExpansionEigenstrainBase, and ComputeThermalExpansionEigenstrain.

Referenced by computeQpEigenstrain().

◆ validParams()

InputParameters ComputeThermalExpansionEigenstrainBase::validParams ( )

static

Definition at line 16 of file ComputeThermalExpansionEigenstrainBase.C.

 {
   InputParameters params = ComputeEigenstrainBase::validParams();
   params.addCoupledVar("temperature", "Coupled temperature");
   params.addRequiredCoupledVar("stress_free_temperature",
                                "Reference temperature at which there is no "
                                "thermal expansion for thermal eigenstrain "
                                "calculation");
   return params;
 }