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material_reinforcement.cc
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/**
* @file material_reinforcement.cc
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @date creation: Thu Mar 12 2015
* @date last modification: Thu Mar 12 2015
*
* @brief Reinforcement material
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 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_reinforcement.hh"
__BEGIN_AKANTU__
template<UInt d>
MaterialReinforcement<d>::MaterialReinforcement(SolidMechanicsModel & model, const ID & id):
Material(model, id),
model(NULL),
directing_cosines("directing_cosines", *this),
reinforcement_stiffness("reinforcement_stiffness", *this),
area("area", *this),
shape_derivatives()
{
this->model = dynamic_cast<EmbeddedInterfaceModel *>(&model);
const UInt steel_dof = Mesh::getNbNodesPerElement(_segment_2) * d;
const UInt voigt_size = static_cast<UInt>(d * (d - (d - 1) / 2.));
directing_cosines.initialize(steel_dof * voigt_size);
}
/* -------------------------------------------------------------------------- */
template<UInt d>
MaterialReinforcement<d>::~MaterialReinforcement()
{}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::initBackgroundShapeDerivatives() {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::assembleStiffnessMatrix(GhostType ghost_type) {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::computeStiffness(const ElementType & type, GhostType ghost_type) {
// This methods should be virtual pure
}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::filterInterfaceBackgroundElements(Array<UInt> & filter,
const ElementType & type,
const ElementType & interface_type,
GhostType ghost_type,
GhostType interface_ghost_type) {
AKANTU_DEBUG_IN();
filter.clear();
Array<Element> & elements = model->getInterfaceAssociatedElements(interface_type, interface_ghost_type);
for (Array<Element>::scalar_iterator it = elements.begin() ;
it != elements.end() ;
++it) {
if (it->type == type) filter.push_back(it->element);
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::computeDirectingCosines(const ElementType & type, GhostType ghost_type) {
AKANTU_DEBUG_IN();
Mesh & interface_mesh = this->model->getInterfaceMesh();
const UInt nb_nodes_per_element = Mesh::getNbNodesPerElement(type);
const UInt steel_dof = nb_nodes_per_element * d;
const UInt voigt_size = static_cast<UInt>(d * (d - (d - 1) / 2.));
const UInt nb_quad_points = model->getFEEngine().getNbQuadraturePoints(type, ghost_type);
Array<Real> node_coordinates(this->element_filter(type, ghost_type).getSize(), steel_dof);
this->model->getFEEngine().template extractNodalToElementField<Real>(interface_mesh,
interface_mesh.getNodes(),
node_coordinates,
type,
ghost_type,
this->element_filter(type, ghost_type));
Array<Real>::matrix_iterator
directing_cosines_it = directing_cosines(type, ghost_type).begin(steel_dof, voigt_size);
Array<Real>::matrix_iterator node_coordinates_it = node_coordinates.begin(d, nb_nodes_per_element);
Array<Real>::matrix_iterator node_coordinates_end = node_coordinates.end(d, nb_nodes_per_element);
for (; node_coordinates_it != node_coordinates_end ; ++node_coordinates_it) {
for (UInt i = 0 ; i < nb_quad_points ; i++, ++directing_cosines_it) {
Matrix<Real> & nodes = *node_coordinates_it;
Matrix<Real> & cosines = *directing_cosines_it;
computeDirectingCosinesOnQuad(nodes, cosines);
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<UInt d>
void MaterialReinforcement<d>::assembleStiffnessMatrix(const ElementType & type, GhostType ghost_type) {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
/// In this function, type and ghost type refer to background elements
template<UInt d>
void MaterialReinforcement<d>::computeBackgroundShapeDerivatives(const ElementType & type, GhostType ghost_type) {
AKANTU_DEBUG_IN();
Mesh & mesh = model->getMesh();
Mesh & interface_mesh = model->getInterfaceMesh();
FEEngine & engine = model->getFEEngine();
FEEngine & interface_engine = model->getFEEngine("EmbeddedInterfaceFEEngine");
ElementTypeMapArray<Real> quad_pos_map;
interface_engine.interpolateOnQuadraturePoints(interface_mesh.getNodes(), quad_pos_map);
Mesh::type_iterator interface_type = interface_mesh.firstType();
Mesh::type_iterator interface_last = interface_mesh.lastType();
for (; interface_type != interface_last ; ++interface_type) {
Array<UInt> filter;
filterInterfaceBackgroundElements(filter, type, *interface_type, ghost_type, _not_ghost);
const UInt nb_elements = filter.getSize();
const UInt nb_nodes = Mesh::getNbNodesPerElement(type);
const UInt nb_quad_per_element = interface_engine.getNbQuadraturePoints(*interface_type);
shape_derivatives(*interface_type).alloc(nb_elements * nb_quad_per_element, d * nb_nodes, type, ghost_type);
Array<Real> & background_shapesd = shape_derivatives(*interface_type)(type, ghost_type);
Array<Real> & quad_pos = quad_pos_map(*interface_type);
Array<UInt>::scalar_iterator filter_it = filter.begin();
Array<UInt>::scalar_iterator filter_end = filter.end();
Array<Real>::matrix_iterator shapesd_it = background_shapesd.begin(d, nb_nodes);
Array<Real>::vector_iterator quad_pos_it = quad_pos.begin(d);
for (; filter_it != filter_end ; ++filter_it) {
for (UInt i = 0 ; i < nb_quad_per_element ; i++, ++shapesd_it, ++quad_pos_it)
engine.computeShapeDerivatives(*quad_pos_it, *filter_it, type, *shapesd_it, ghost_type);
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
INSTANSIATE_MATERIAL(MaterialReinforcement);
/* -------------------------------------------------------------------------- */
__END_AKANTU__

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