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material_damage_non_local.cc
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Wed, Jul 24, 07:30

material_damage_non_local.cc
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/**
* @file material_damage.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Marion Chambart <marion.chambart@epfl.ch>
* @date Tue Jul 27 11:53:52 2010
*
* @brief Specialization of the material class for the damage material
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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_damage_non_local.hh"
#include "solid_mechanics_model.hh"
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
MaterialDamageNonLocal::MaterialDamageNonLocal(Model & model, const ID & id) :
Material(model, id), MaterialDamage(model, id), MaterialNonLocal(model, id),
Y("Y", id) {
AKANTU_DEBUG_IN();
is_non_local = true;
initInternalVector(this->Y, 1);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void MaterialDamageNonLocal::initMaterial() {
AKANTU_DEBUG_IN();
MaterialDamage::initMaterial();
MaterialNonLocal::initMaterial();
resizeInternalVector(this->Y);
is_init = true;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void MaterialDamageNonLocal::computeStress(ElementType el_type, GhostType ghost_type) {
AKANTU_DEBUG_IN();
Real F[3*3];
Real sigma[3*3];
Real * dam = damage(el_type, ghost_type).storage();
Real * Yt = Y(el_type, ghost_type).storage();
Real * Ydq = Yd_rand(el_type, ghost_type).storage();
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN;
memset(F, 0, 3 * 3 * sizeof(Real));
for (UInt i = 0; i < spatial_dimension; ++i)
for (UInt j = 0; j < spatial_dimension; ++j)
F[3*i + j] = strain_val[spatial_dimension * i + j];
MaterialDamage::computeStress(F, sigma, *dam, *Yt, *Ydq);
++dam;
++Yt;
++Ydq;
for (UInt i = 0; i < spatial_dimension; ++i)
for (UInt j = 0; j < spatial_dimension; ++j)
stress_val[spatial_dimension*i + j] = sigma[3 * i + j];
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void MaterialDamageNonLocal::computeNonLocalStress(ElementType el_type, GhostType ghost_type) {
AKANTU_DEBUG_IN();
UInt nb_quadrature_points = model->getFEM().getNbQuadraturePoints(el_type, ghost_type);
UInt nb_element = element_filter(el_type, ghost_type).getSize();
if (nb_element == 0) return;
ByElementTypeReal Ynl("Y non local", id);
initInternalVector(Ynl, 1);
resizeInternalVector(Ynl);
weigthedAvergageOnNeighbours(Y, Ynl, 1);
Vector<Real>::iterator<types::Matrix> stress_it = stress(el_type, ghost_type).begin(spatial_dimension, spatial_dimension);
Real * dam = damage(el_type, ghost_type).storage();
Real * Ynlt = Ynl(el_type, ghost_type).storage();
Real * Ydq = Yd_rand(el_type, ghost_type).storage();
Real sigma[3*3];
for (UInt el = 0; el < nb_element; ++el) {
for (UInt q = 0; q < nb_quadrature_points; ++q) {
for (UInt i = 0; i < spatial_dimension; ++i)
for (UInt j = 0; j < spatial_dimension; ++j)
sigma[3 * i + j] = (*stress_it)(i, j);
computeDamageAndStress(sigma, *dam, *Ynlt, *Ydq);
for (UInt i = 0; i < spatial_dimension; ++i)
for (UInt j = 0; j < spatial_dimension; ++j)
(*stress_it)(i, j) = sigma[3 * i + j];
++stress_it;
++dam;
++Ynlt;
++Ydq;
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
bool MaterialDamageNonLocal::setParam(const std::string & key, const std::string & value,
const ID & id) {
std::stringstream sstr(value);
if(key == "Yd") { sstr >> Yd; }
else if(key == "Sd") { sstr >> Sd; }
else {
return MaterialNonLocal::setParam(key, value, id) ||
MaterialDamage::setParam(key, value, id);
}
return true;
}
/* -------------------------------------------------------------------------- */
void MaterialDamageNonLocal::printself(std::ostream & stream, int indent) const {
std::string space;
for(Int i = 0; i < indent; i++, space += AKANTU_INDENT);
stream << space << "Material<_damage_non_local> [" << std::endl;
MaterialDamage::printself(stream, indent + 1);
MaterialNonLocal::printself(stream, indent + 1);
stream << space << "]" << std::endl;
}
/* -------------------------------------------------------------------------- */
__END_AKANTU__

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