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rAKA/src/mesh_utils/cohesive_element_inserter.cc
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cohesive_element_inserter.cc
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/**
* @file cohesive_element_inserter.cc
*
* @author Mathias Lebihain <mathias.lebihain@enpc.fr>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Wed Dec 04 2013
* @date last modification: Wed Nov 11 2020
*
* @brief Cohesive element inserter functions
*
*
* @section LICENSE
*
* Copyright (©) 2014-2021 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 "cohesive_element_inserter.hh"
#include "cohesive_element_inserter_helper.hh"
#include "communicator.hh"
#include "element_group.hh"
#include "element_synchronizer.hh"
#include "global_ids_updater.hh"
#include "mesh_accessor.hh"
#include "mesh_iterators.hh"
/* -------------------------------------------------------------------------- */
#include <algorithm>
#include <limits>
/* -------------------------------------------------------------------------- */
namespace akantu {
CohesiveElementInserter::CohesiveElementInserter(Mesh & mesh, const ID & id)
: Parsable(ParserType::_cohesive_inserter), id(id), mesh(mesh),
mesh_facets(mesh.initMeshFacets()),
insertion_facets("insertion_facets", id),
insertion_limits(mesh.getSpatialDimension(), 2),
check_facets("check_facets", id) {
this->registerParam("cohesive_surfaces", physical_surfaces, _pat_parsable,
"List of groups to consider for insertion");
this->registerParam("cohesive_zones", physical_zones, _pat_parsable,
"List of groups to consider for insertion");
this->registerParam("bounding_box", insertion_limits, _pat_parsable,
"Global limit for insertion");
auto spatial_dimension = mesh.getSpatialDimension();
/// init insertion limits
for (Int dim = 0; dim < spatial_dimension; ++dim) {
insertion_limits(dim, 0) = std::numeric_limits<Real>::max() * Real(-1.);
insertion_limits(dim, 1) = std::numeric_limits<Real>::max();
}
insertion_facets.initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_with_nb_element = true, _default_value = false);
}
/* -------------------------------------------------------------------------- */
CohesiveElementInserter::~CohesiveElementInserter() = default;
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::parseSection(const ParserSection & section) {
Parsable::parseSection(section);
if (is_extrinsic) {
limitCheckFacets(this->check_facets);
}
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::limitCheckFacets() {
limitCheckFacets(this->check_facets);
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::setLimit(SpatialDirection axis, Real first_limit,
Real second_limit) {
AKANTU_DEBUG_ASSERT(
axis < mesh.getSpatialDimension(),
"You are trying to limit insertion in a direction that doesn't exist");
insertion_limits(axis, 0) = std::min(first_limit, second_limit);
insertion_limits(axis, 1) = std::max(first_limit, second_limit);
}
/* -------------------------------------------------------------------------- */
Int CohesiveElementInserter::insertIntrinsicElements() {
limitCheckFacets(insertion_facets);
return insertElements();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::limitCheckFacets(
ElementTypeMapArray<bool> & check_facets) {
AKANTU_DEBUG_IN();
auto spatial_dimension = mesh.getSpatialDimension();
check_facets.initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_with_nb_element = true, _default_value = true);
check_facets.set(true);
// remove the pure ghost elements
for_each_element(
mesh_facets,
[&](auto && facet) {
const auto & element_to_facet = mesh_facets.getElementToSubelement(
facet.type, facet.ghost_type)(facet.element);
auto & left = element_to_facet[0];
auto & right = element_to_facet[1];
if (right == ElementNull ||
(left.ghost_type == _ghost && right.ghost_type == _ghost)) {
check_facets(facet) = false;
return;
}
#ifndef AKANTU_NDEBUG
if (left == ElementNull) {
AKANTU_DEBUG_WARNING("By convention element should not have "
"ElementNull on there first side: "
<< facet);
}
#endif
if (left.kind() == _ek_cohesive or right.kind() == _ek_cohesive) {
check_facets(facet) = false;
}
},
_spatial_dimension = spatial_dimension - 1);
auto tolerance = Math::getTolerance();
Vector<Real> bary_facet(spatial_dimension);
// set the limits to the bounding box
for_each_element(
mesh_facets,
[&](auto && facet) {
auto & need_check = check_facets(facet);
if (not need_check) {
return;
}
mesh_facets.getBarycenter(facet, bary_facet);
Int coord_in_limit = 0;
while (coord_in_limit < spatial_dimension and
bary_facet(coord_in_limit) >
(insertion_limits(coord_in_limit, 0) - tolerance) and
bary_facet(coord_in_limit) <
(insertion_limits(coord_in_limit, 1) + tolerance)) {
++coord_in_limit;
}
if (coord_in_limit != spatial_dimension) {
need_check = false;
}
},
_spatial_dimension = spatial_dimension - 1);
// remove the physical zones
if (mesh.hasData("physical_names") and not physical_zones.empty()) {
auto && physical_names = mesh.getData<std::string>("physical_names");
for_each_element(
mesh_facets,
[&](auto && facet) {
const auto & element_to_facet = mesh_facets.getElementToSubelement(
facet.type, facet.ghost_type)(facet.element);
auto count = 0;
for (auto i : arange(2)) {
const auto & element = element_to_facet[i];
if (element == ElementNull) {
continue;
}
const auto & name = physical_names(element);
count += find(physical_zones.begin(), physical_zones.end(), name) !=
physical_zones.end();
}
if (count != 2) {
check_facets(facet) = false;
}
},
_spatial_dimension = spatial_dimension - 1);
}
if (physical_surfaces.empty()) {
AKANTU_DEBUG_OUT();
return;
}
if (not mesh_facets.hasData("physical_names")) {
AKANTU_DEBUG_ASSERT(
physical_surfaces.empty(),
"No physical names in the mesh but insertion limited to a group");
AKANTU_DEBUG_OUT();
return;
}
const auto & physical_ids =
mesh_facets.getData<std::string>("physical_names");
// set the limits to the physical surfaces
for_each_element(
mesh_facets,
[&](auto && facet) {
auto & need_check = check_facets(facet, 0);
if (not need_check) {
return;
}
const auto & physical_id = physical_ids(facet);
auto it = find(physical_surfaces.begin(), physical_surfaces.end(),
physical_id);
need_check = (it != physical_surfaces.end());
},
_spatial_dimension = spatial_dimension - 1);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
UInt CohesiveElementInserter::insertElements(bool only_double_facets) {
CohesiveNewNodesEvent node_event(AKANTU_CURRENT_FUNCTION);
NewElementsEvent element_event(AKANTU_CURRENT_FUNCTION);
if (mesh_facets.isDistributed()) {
mesh_facets.getElementSynchronizer().synchronizeOnce(
*this, SynchronizationTag::_ce_groups);
}
CohesiveElementInserterHelper cohesive_element_inserter_helper(
mesh, insertion_facets);
UInt nb_new_elements{0};
if (only_double_facets) {
nb_new_elements = cohesive_element_inserter_helper.insertFacetsOnly();
} else {
nb_new_elements = cohesive_element_inserter_helper.insertCohesiveElement();
element_event.getList().copy(
cohesive_element_inserter_helper.getNewElements());
}
auto && doubled_nodes = cohesive_element_inserter_helper.getDoubledNodes();
auto nb_new_nodes = doubled_nodes.size();
node_event.getList().reserve(nb_new_nodes);
node_event.getOldNodesList().reserve(nb_new_nodes);
for (auto && doubled_node : make_view(doubled_nodes, 2)) {
node_event.getList().push_back(doubled_node(1));
node_event.getOldNodesList().push_back(doubled_node(0));
}
if (nb_new_elements > 0) {
updateInsertionFacets();
}
MeshAccessor mesh_accessor(mesh);
std::tie(nb_new_nodes, nb_new_elements) =
mesh_accessor.updateGlobalData(node_event, element_event);
return nb_new_elements;
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::updateInsertionFacets() {
AKANTU_DEBUG_IN();
auto spatial_dimension = mesh.getSpatialDimension();
for (auto && facet_gt : ghost_types) {
for (auto && facet_type :
mesh_facets.elementTypes(spatial_dimension - 1, facet_gt)) {
auto & ins_facets = insertion_facets(facet_type, facet_gt);
// this is the intrinsic case
if (not is_extrinsic) {
continue;
}
auto & f_check = check_facets(facet_type, facet_gt);
for (auto && pair : zip(ins_facets, f_check)) {
bool & ins = std::get<0>(pair);
bool & check = std::get<1>(pair);
if (ins) {
ins = check = false;
}
}
}
}
// resize for the newly added facets
insertion_facets.initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_with_nb_element = true, _default_value = false);
// resize for the newly added facets
if (is_extrinsic) {
check_facets.initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_with_nb_element = true, _default_value = false);
} else {
insertion_facets.set(false);
}
AKANTU_DEBUG_OUT();
}
} // namespace akantu
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