StrainEnergyDensity.h

// Copyright 2024, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
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#pragma once
 
#include "neml2/models/Model.h"
#include "neml2/tensors/SR2.h"
#include "neml2/tensors/Scalar.h"
 
namespace neml2
{
class StrainEnergyDensity : public Model
{
public:
  static OptionSet expected_options();
 
  StrainEnergyDensity(const OptionSet & options);
 
protected:
  const Variable<SR2> & _strain;

  Variable<Scalar> & _psie_active;

  Variable<Scalar> & _psie_inactive;
};
} // namespace neml2