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material_thermal.cc
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/**
* @file material_thermal.cc
*
* @author Lucas Frerot <lucas.frerot@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Fri Apr 09 2021
*
* @brief Specialization of the material class for the thermal material
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "material_thermal.hh"
namespace akantu {
/* -------------------------------------------------------------------------- */
template <UInt dim>
MaterialThermal<dim>::MaterialThermal(SolidMechanicsModel & model,
const ID & id)
: Material(model, id), delta_T("delta_T", *this),
sigma_th("sigma_th", *this), use_previous_stress_thermal(false) {
this->initialize();
}
/* -------------------------------------------------------------------------- */
template <UInt dim>
MaterialThermal<dim>::MaterialThermal(SolidMechanicsModel & model,
UInt spatial_dimension, const Mesh & mesh,
FEEngine & fe_engine, const ID & id)
: Material(model, spatial_dimension, mesh, fe_engine, id),
delta_T("delta_T", *this, dim, fe_engine, this->element_filter),
sigma_th("sigma_th", *this, dim, fe_engine, this->element_filter),
use_previous_stress_thermal(false) {
this->initialize();
}
/* -------------------------------------------------------------------------- */
template <UInt dim> void MaterialThermal<dim>::initialize() {
this->registerParam("E", E, Real(0.), _pat_parsable | _pat_modifiable,
"Young's modulus");
this->registerParam("nu", nu, Real(0.5), _pat_parsable | _pat_modifiable,
"Poisson's ratio");
this->registerParam("alpha", alpha, Real(0.), _pat_parsable | _pat_modifiable,
"Thermal expansion coefficient");
this->registerParam("delta_T", delta_T, _pat_parsable | _pat_modifiable,
"Uniform temperature field");
delta_T.initialize(1);
}
/* -------------------------------------------------------------------------- */
template <UInt dim> void MaterialThermal<dim>::initMaterial() {
sigma_th.initialize(1);
if (use_previous_stress_thermal) {
sigma_th.initializeHistory();
}
Material::initMaterial();
}
/* -------------------------------------------------------------------------- */
template <UInt dim>
void MaterialThermal<dim>::computeStress(ElementType el_type,
GhostType ghost_type) {
for (auto && tuple : zip(this->delta_T(el_type, ghost_type),
this->sigma_th(el_type, ghost_type))) {
computeStressOnQuad(std::get<1>(tuple), std::get<0>(tuple));
}
}
/* -------------------------------------------------------------------------- */
INSTANTIATE_MATERIAL_ONLY(MaterialThermal);
} // namespace akantu

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