TrussMaterial.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* 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"
 
// Forward Declarations
 
class TrussMaterial : public Material
{
public:
  static InputParameters validParams();
 
  TrussMaterial(const InputParameters & parameters);
 
protected:
  virtual void initQpStatefulProperties();
  virtual void computeProperties();
 
  virtual void computeQpStrain() = 0;
  virtual void computeQpStress() = 0;
 
  std::vector<MooseVariable *> _disp_var;
 
  const std::string _base_name;
 
  unsigned int _ndisp;
  const VariableValue & _youngs_modulus;
 
  MaterialProperty<Real> & _total_stretch;
  MaterialProperty<Real> & _elastic_stretch;
  MaterialProperty<Real> & _axial_stress;
  MaterialProperty<Real> & _e_over_l;
 
  Real _origin_length;
  Real _current_length;
};