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rAKA/model/solid_mechanics/solid_mechanics_model_mass.cc
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solid_mechanics_model_mass.cc
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/**
* @file solid_mechanics_model_mass.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Mon Oct 4 15:21:23 2010
*
* @brief function handling mass computation
*
* @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 "solid_mechanics_model.hh"
#include "material.hh"
//#include "static_communicator.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
void SolidMechanicsModel::assembleMassLumped() {
AKANTU_DEBUG_IN();
UInt nb_nodes = getFEM().getMesh().getNbNodes();
memset(mass->values, 0, nb_nodes*sizeof(Real));
assembleMassLumped(_not_ghost);
assembleMassLumped(_ghost);
/// for not connected nodes put mass to one in order to avoid
/// wrong range in paraview
Real * mass_values = mass->values;
for (UInt i = 0; i < nb_nodes; ++i) {
if (fabs(mass_values[i]) < std::numeric_limits<Real>::epsilon() || Math::isnan(mass_values[i]))
mass_values[i] = 1.;
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModel::assembleMassLumped(GhostType ghost_type) {
AKANTU_DEBUG_IN();
FEM & fem = getFEM();
Vector<Real> rho_1(0,1);
const Mesh::ConnectivityTypeList & type_list = fem.getMesh().getConnectivityTypeList(ghost_type);
Mesh::ConnectivityTypeList::const_iterator it;
for(it = type_list.begin(); it != type_list.end(); ++it) {
if(Mesh::getSpatialDimension(*it) != spatial_dimension) continue;
ElementType type = *it;
computeRho(rho_1, type, ghost_type);
fem.assembleFieldLumped(rho_1, *mass, type, ghost_type);
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModel::assembleMass(GhostType ghost_type) {
AKANTU_DEBUG_IN();
MyFEMType & fem = getFEMClass<MyFEMType>();
Vector<Real> rho_1(0,1);
UInt nb_element;
const Mesh::ConnectivityTypeList & type_list = fem.getMesh().getConnectivityTypeList(ghost_type);
Mesh::ConnectivityTypeList::const_iterator it;
for(it = type_list.begin(); it != type_list.end(); ++it) {
if(Mesh::getSpatialDimension(*it) != spatial_dimension) continue;
ElementType type = *it;
const Vector<Real> * shapes;
if(ghost_type == _not_ghost) {
nb_element = fem.getMesh().getNbElement(type);
shapes = &(fem.getShapes(type));
} else {
nb_element = fem.getMesh().getNbGhostElement(type);
shapes = &(fem.getGhostShapes(type));
}
computeRho(rho_1, type, ghost_type);
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void SolidMechanicsModel::computeRho(Vector<Real> & rho,
ElementType type,
GhostType ghost_type) {
AKANTU_DEBUG_IN();
Material ** mat_val = &(materials.at(0));
UInt * elem_mat_val;
UInt nb_element;
FEM & fem = getFEM();
if(ghost_type == _not_ghost) {
nb_element = fem.getMesh().getNbElement(type);
elem_mat_val = element_material[type]->values;
} else {
nb_element = fem.getMesh().getNbGhostElement(type);
elem_mat_val = ghost_element_material[type]->values;
}
UInt nb_quadrature_points = fem.getNbQuadraturePoints(type);
rho.resize(nb_element * nb_quadrature_points);
Real * rho_1_val = rho.values;
/// compute @f$ rho @f$ for each nodes of each element
for (UInt el = 0; el < nb_element; ++el) {
Real rho = mat_val[elem_mat_val[el]]->getRho(); /// here rho is constant in an element
for (UInt n = 0; n < nb_quadrature_points; ++n) {
*rho_1_val++ = rho;
}
}
AKANTU_DEBUG_OUT();
}
__END_AKANTU__
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