LinearIsotropicHardening.cxx

// Copyright 2023, 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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#include "neml2/models/solid_mechanics/LinearIsotropicHardening.h"
 
namespace neml2
{
register_NEML2_object(LinearIsotropicHardening);
 
OptionSet
LinearIsotropicHardening::expected_options()
{
  OptionSet options = IsotropicHardening::expected_options();
  options.doc() += " following a linear relationship, i.e., \\f$ k = H \\varepsilon_p \\f$ where "
                   "\\f$ H \\f$ is the hardening modulus.";
 
  options.set<CrossRef<Scalar>>("hardening_modulus");
  options.set("hardening_modulus").doc() = "Hardening modulus";
 
  return options;
}
 
LinearIsotropicHardening::LinearIsotropicHardening(const OptionSet & options)
  : IsotropicHardening(options),
    _K(declare_parameter<Scalar>("K", "hardening_modulus"))
{
}
 
void
LinearIsotropicHardening::set_value(bool out, bool dout_din, bool d2out_din2)
{
  if (out)
    _h = _K * _ep;
 
  if (dout_din)
    _h.d(_ep) = _K;
 
  if (d2out_din2)
  {
    // zero
  }
}
} // namespace neml2