Nonlinear3D.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 "Nonlinear.h"
 
// Forward declarations
class MaterialModel;
class VolumetricModel;
 
namespace SolidMechanics
{
 
class Nonlinear3D : public Nonlinear
{
public:
  Nonlinear3D(SolidModel & solid_model,
              const std::string & name,
              const InputParameters & parameters);
 
  virtual ~Nonlinear3D();
 
protected:
  const VariableGradient & _grad_disp_x;
  const VariableGradient & _grad_disp_y;
  const VariableGradient & _grad_disp_z;
  const VariableGradient & _grad_disp_x_old;
  const VariableGradient & _grad_disp_y_old;
  const VariableGradient & _grad_disp_z_old;
 
  virtual void computeDeformationGradient(unsigned int qp, ColumnMajorMatrix & F);
 
  virtual Real volumeRatioOld(unsigned qp) const;
 
  virtual void computeIncrementalDeformationGradient(std::vector<ColumnMajorMatrix> & Fhat);
  const bool _volumetric_locking_correction;
};
 
} // namespace solid_mechanics