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material_selector_cohesive.cc
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material_selector_cohesive.cc
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/**
* @file material_selector_cohesive.cc
*
* @author Mauro Corrado <mauro.corrado@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Fri Dec 11 2015
* @date last modification: Mon Dec 18 2017
*
* @brief Material selector for cohesive elements
*
*
* Copyright (©) 2015-2018 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_selector_cohesive.hh"
#include "solid_mechanics_model_cohesive.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
DefaultMaterialCohesiveSelector::DefaultMaterialCohesiveSelector(
const SolidMechanicsModelCohesive & model)
: facet_material(model.getFacetMaterial()), mesh(model.getMesh()) {
// backward compatibility v3: to get the former behavior back when the user
// creates its own selector
this->fallback_selector =
std::make_shared<DefaultMaterialSelector>(model.getMaterialByElement());
}
/* -------------------------------------------------------------------------- */
UInt DefaultMaterialCohesiveSelector::operator()(const Element & element) {
if (Mesh::getKind(element.type) == _ek_cohesive) {
try {
const Array<Element> & cohesive_el_to_facet =
mesh.getMeshFacets().getSubelementToElement(element.type,
element.ghost_type);
bool third_dimension = (mesh.getSpatialDimension() == 3);
const Element & facet =
cohesive_el_to_facet(element.element, UInt(third_dimension));
if (facet_material.exists(facet.type, facet.ghost_type)) {
return facet_material(facet.type, facet.ghost_type)(facet.element);
}
return fallback_value;
} catch (...) {
return fallback_value;
}
} else if (Mesh::getSpatialDimension(element.type) ==
mesh.getSpatialDimension() - 1) {
return facet_material(element.type, element.ghost_type)(element.element);
} else {
return MaterialSelector::operator()(element);
}
}
/* -------------------------------------------------------------------------- */
MeshDataMaterialCohesiveSelector::MeshDataMaterialCohesiveSelector(
const SolidMechanicsModelCohesive & model)
: model(model), mesh_facets(model.getMeshFacets()),
material_index(mesh_facets.getData<std::string>("physical_names")) {
third_dimension = (model.getSpatialDimension() == 3);
// backward compatibility v3: to get the former behavior back when the user
// creates its own selector
this->fallback_selector =
std::make_shared<MeshDataMaterialSelector<std::string>>("physical_names",
model);
}
/* -------------------------------------------------------------------------- */
UInt MeshDataMaterialCohesiveSelector::operator()(const Element & element) {
if (Mesh::getKind(element.type) == _ek_cohesive or
Mesh::getSpatialDimension(element.type) ==
mesh_facets.getSpatialDimension() - 1) {
Element facet;
if (Mesh::getKind(element.type) == _ek_cohesive) {
facet =
mesh_facets.getSubelementToElement(element.type, element.ghost_type)(
element.element, UInt(third_dimension));
} else {
facet = element;
}
try {
std::string material_name = this->material_index(facet);
return this->model.getMaterialIndex(material_name);
} catch (...) {
return fallback_value;
}
}
return MaterialSelector::operator()(element);
}
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
MaterialCohesiveRulesSelector::MaterialCohesiveRulesSelector(
const SolidMechanicsModelCohesive & model,
const MaterialCohesiveRules & rules,
ID mesh_data_id) // what we have here is the name of model and also
// the name of different materials
: model(model), mesh_data_id(std::move(mesh_data_id)),
mesh(model.getMesh()), mesh_facets(model.getMeshFacets()),
spatial_dimension(model.getSpatialDimension()), rules(rules) {
// cohesive fallback
this->fallback_selector =
std::make_shared<DefaultMaterialCohesiveSelector>(model);
// non cohesive fallback
this->fallback_selector->setFallback(
std::make_shared<MeshDataMaterialSelector<std::string>>(mesh_data_id,
model));
}
/* -------------------------------------------------------------------------- */
UInt MaterialCohesiveRulesSelector::operator()(const Element & element) {
if (mesh_facets.getSpatialDimension(element.type) ==
(spatial_dimension - 1)) {
const std::vector<Element> & element_to_subelement =
mesh_facets.getElementToSubelement(element.type,
element.ghost_type)(element.element);
// Array<bool> & facets_check = model.getFacetsCheck();
const Element & el1 = element_to_subelement[0];
const Element & el2 = element_to_subelement[1];
ID id1 = mesh.getData<std::string>(mesh_data_id, el1.type,
el1.ghost_type)(el1.element);
ID id2 = id1;
if (el2 != ElementNull) {
id2 = mesh.getData<std::string>(mesh_data_id, el2.type,
el2.ghost_type)(el2.element);
}
auto rit = rules.find(std::make_pair(id1, id2));
if (rit == rules.end()) {
rit = rules.find(std::make_pair(id2, id1));
}
if (rit != rules.end()) {
return model.getMaterialIndex(rit->second);
}
}
return MaterialSelector::operator()(element);
}
} // namespace akantu

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