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material_hyper_elasto_plastic2.cc
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material_hyper_elasto_plastic2.cc
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/**
* @file material_hyper_elasto_plastic2.cc
*
* @author Richard Leute <richard.leute@imtek.uni-freiburg.de>
*
* @date 08 May 2018
*
* @brief implementation for MaterialHyperElastoPlastic2
*
* Copyright © 2018 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "materials/material_hyper_elasto_plastic2.hh"
namespace muSpectre {
//----------------------------------------------------------------------------//
template <Dim_t DimS, Dim_t DimM>
MaterialHyperElastoPlastic2<DimS, DimM>::
MaterialHyperElastoPlastic2(std::string name)
: Parent{name},
plast_flow_field{make_statefield<StateField<ScalarField<LColl_t, Real>>>
("cumulated plastic flow εₚ", this->internal_fields)},
F_prev_field{make_statefield<StateField<
TensorField<LColl_t, Real, secondOrder, DimM>>>
("Previous placement gradient Fᵗ", this->internal_fields)},
be_prev_field{make_statefield<StateField<TensorField<
LColl_t, Real, secondOrder, DimM>>>
("Previous left Cauchy-Green deformation bₑᵗ",
this->internal_fields)},
lambda_field{make_field<Field_t>("local first Lame constant",
this->internal_fields )},
mu_field{make_field<Field_t>("local second lame constant",
this->internal_fields )},
tau_y0_field{make_field<Field_t>("local yield stress",
this->internal_fields )},
H_field{make_field<Field_t>("local hardening modulus",
this->internal_fields )},
internal_variables{F_prev_field.get_map(), be_prev_field.get_map(),
plast_flow_field.get_map(), lambda_field.get_const_map(),
mu_field.get_const_map(), tau_y0_field.get_const_map(),
H_field.get_const_map()}
{}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void MaterialHyperElastoPlastic2<DimS, DimM>::save_history_variables() {
this->plast_flow_field.cycle();
this->F_prev_field.cycle();
this->be_prev_field.cycle();
}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void MaterialHyperElastoPlastic2<DimS, DimM>::initialise() {
Parent::initialise();
this->F_prev_field.get_map().current() =
Eigen::Matrix<Real, DimM, DimM>::Identity();
this->be_prev_field.get_map().current() =
Eigen::Matrix<Real, DimM, DimM>::Identity();
this->save_history_variables();
}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void MaterialHyperElastoPlastic2<DimS, DimM>::
add_pixel(const Ccoord_t<DimS> & /*pixel*/) {
throw std::runtime_error
("This material needs pixels with Youngs modulus, Poisson ratio,\n"
"Yield stress and Hardening modulus.");
}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void MaterialHyperElastoPlastic2<DimS, DimM>::
add_pixel(const Ccoord_t<DimS> & pixel,
const Real & Youngs_modulus, const Real & Poisson_ratio,
const Real & tau_y0, const Real & H) {
this->internal_fields.add_pixel(pixel);
this->tau_y0_field.push_back(tau_y0);
this->H_field.push_back(H);
// compute lambda and mu
auto lambda{Hooke::compute_lambda(Youngs_modulus, Poisson_ratio)};
auto mu{Hooke::compute_mu(Youngs_modulus, Poisson_ratio)};
this->lambda_field.push_back(lambda);
this->mu_field.push_back(mu);
}
template class MaterialHyperElastoPlastic2< twoD, twoD>;
template class MaterialHyperElastoPlastic2< twoD, threeD>;
template class MaterialHyperElastoPlastic2<threeD, threeD>;
} // muSpectre

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