ComputeThermalExpansionEigenstrainBase.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "ComputeEigenstrainBase.h"
#include "DerivativeMaterialInterface.h"
 
class ComputeThermalExpansionEigenstrainBase;
template <typename>
class RankTwoTensorTempl;
typedef RankTwoTensorTempl<Real> RankTwoTensor;
 
template <>
InputParameters validParams<ComputeThermalExpansionEigenstrainBase>();
 
class ComputeThermalExpansionEigenstrainBase
  : public DerivativeMaterialInterface<ComputeEigenstrainBase>
{
public:
  static InputParameters validParams();
 
  ComputeThermalExpansionEigenstrainBase(const InputParameters & parameters);
 
protected:
  virtual void computeQpEigenstrain() override;
  /*
   * Compute the total thermal strain relative to the stress-free temperature at
   * the current temperature, as well as the current instantaneous thermal
   * expansion coefficient.
   * param thermal_strain    The current total linear thermal strain
   *                         (\delta L / L)
   * param instantaneous_cte The current instantaneous coefficient of thermal
   *                         expansion (derivative of thermal_strain wrt
   *                         temperature
   */
  virtual void computeThermalStrain(Real & thermal_strain, Real & instantaneous_cte) = 0;
 
  const VariableValue & _temperature;
  MaterialProperty<RankTwoTensor> & _deigenstrain_dT;
  const VariableValue & _stress_free_temperature;
};