ConstitutiveModel.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 "Material.h"
 
#include "SymmElasticityTensor.h"
#include "SymmTensor.h"
 
class ConstitutiveModel;
 
template <>
InputParameters validParams<ConstitutiveModel>();
 
class ConstitutiveModel : public Material
{
public:
  ConstitutiveModel(const InputParameters & parameters);
 
  virtual ~ConstitutiveModel() {}
 
  void setQp(unsigned int qp);
 
  virtual void computeStress(const Elem & /*current_elem*/,
                             const SymmElasticityTensor & elasticityTensor,
                             const SymmTensor & stress_old,
                             SymmTensor & strain_increment,
                             SymmTensor & stress_new);
 
  virtual bool modifyStrainIncrement(const Elem & /*elem*/,
                                     SymmTensor & strain_increment,
                                     SymmTensor & d_strain_dT)
  {
    return applyThermalStrain(strain_increment, d_strain_dT);
  }
  virtual bool updateElasticityTensor(SymmElasticityTensor & /*elasticityTensor*/) { return false; }
 
  virtual bool applyThermalStrain(SymmTensor & strain_increment, SymmTensor & d_strain_dT);
 
protected:
  const bool _has_temp;
  const VariableValue & _temperature;
  const VariableValue & _temperature_old;
  const Real _alpha;
  const Function * _alpha_function;
  bool _has_stress_free_temp;
  Real _stress_free_temp;
  bool _mean_alpha_function;
  Real _ref_temp;
 
  bool & _step_zero_cm;
  bool & _step_one_cm;
 
private:
  using Material::computeProperties;
};