solid_mechanics_model_cohesive.cc
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solid_mechanics_model_cohesive.cc
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	/**
	* @file solid_mechanics_model_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: Tue May 08 2012
	* @date last modification: Wed Jan 13 2016
	*
	* @brief Solid mechanics model for cohesive elements
	*
	* @section LICENSE
	*
	* Copyright (©) 2010-2012, 2014, 2015 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_cohesive.hh"
	#include "aka_iterators.hh"
	#include "cohesive_element_inserter.hh"
	#include "dumpable_inline_impl.hh"
	#include "element_synchronizer.hh"
	#include "facet_synchronizer.hh"
	#include "fe_engine_template.hh"
	#include "integrator_gauss.hh"
	#include "material_cohesive.hh"
	#include "parser.hh"
	#include "shape_cohesive.hh"

	#include "dumpable_inline_impl.hh"
	#ifdef AKANTU_USE_IOHELPER
	#include "dumper_paraview.hh"
	#endif
	/* -------------------------------------------------------------------------- */
	#include <algorithm>
	/* -------------------------------------------------------------------------- */

	namespace akantu {

	const SolidMechanicsModelCohesiveOptions
	default_solid_mechanics_model_cohesive_options(_explicit_lumped_mass,
	false);

	/* -------------------------------------------------------------------------- */
	SolidMechanicsModelCohesive::SolidMechanicsModelCohesive(
	Mesh & mesh, UInt dim, const ID & id, const MemoryID & memory_id)
	: SolidMechanicsModel(mesh, dim, id, memory_id), tangents("tangents", id),
	facet_stress("facet_stress", id), facet_material("facet_material", id) {
	AKANTU_DEBUG_IN();

	this->options_type = ModelOptionsType::_solid_mechanics_model_cohesive;

	auto && tmp_material_selector =
	std::make_shared<DefaultMaterialCohesiveSelector>(*this);

	tmp_material_selector->setFallback(this->material_selector);
	material_selector = tmp_material_selector;

	#if defined(AKANTU_USE_IOHELPER)
	this->mesh.registerDumper<DumperParaview>("cohesive elements", id);
	this->mesh.addDumpMeshToDumper("cohesive elements", mesh,
	Model::spatial_dimension, _not_ghost,
	_ek_cohesive);
	#endif

	if (this->mesh.isDistributed()) {
	/// create the distributed synchronizer for cohesive elements
	cohesive_synchronizer = std::make_unique<ElementSynchronizer>(
	mesh, "cohesive_distributed_synchronizer");

	auto & synchronizer = mesh.getElementSynchronizer();
	cohesive_synchronizer->split(synchronizer, [](auto && el) {
	return Mesh::getKind(el.type) == _ek_cohesive;
	});

	this->registerSynchronizer(*cohesive_synchronizer, _gst_material_id);
	this->registerSynchronizer(*cohesive_synchronizer, _gst_smm_stress);
	this->registerSynchronizer(*cohesive_synchronizer, _gst_smm_boundary);
	}
	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	SolidMechanicsModelCohesive::~SolidMechanicsModelCohesive() = default;

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::setTimeStep(Real time_step,
	const ID & solver_id) {
	SolidMechanicsModel::setTimeStep(time_step, solver_id);

	#if defined(AKANTU_USE_IOHELPER)
	this->mesh.getDumper("cohesive elements").setTimeStep(time_step);
	#endif
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initFullImpl(const ModelOptions & options) {
	AKANTU_DEBUG_IN();

	const auto & smmc_options =
	dynamic_cast<const SolidMechanicsModelCohesiveOptions &>(options);

	this->is_extrinsic = smmc_options.extrinsic;

	inserter = std::make_unique<CohesiveElementInserter>(
	mesh, is_extrinsic, id + ":cohesive_element_inserter");

	if (mesh.isDistributed()) {
	auto & mesh_facets = inserter->getMeshFacets();
	auto & synchronizer =
	dynamic_cast<FacetSynchronizer &>(mesh_facets.getElementSynchronizer());
	this->registerSynchronizer(synchronizer, _gst_smmc_facets);
	this->registerSynchronizer(synchronizer, _gst_smmc_facets_conn);
	synchronizeGhostFacetsConnectivity();

	/// create the facet synchronizer for extrinsic simulations
	if (is_extrinsic) {
	facet_stress_synchronizer =
	std::make_unique<ElementSynchronizer>(mesh_facets);

	facet_stress_synchronizer->updateSchemes(
	[&](auto & scheme, auto & proc, auto & direction) {
	scheme.copy(const_cast<const FacetSynchronizer &>(synchronizer)
	.getCommunications()
	.getScheme(proc, direction));
	});
	this->registerSynchronizer(*facet_stress_synchronizer,
	_gst_smmc_facets_stress);
	}
	}

	SolidMechanicsModel::initFullImpl(options);

	AKANTU_DEBUG_OUT();
	} // namespace akantu

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initMaterials() {
	AKANTU_DEBUG_IN();

	// make sure the material are instantiated
	if (!are_materials_instantiated)
	instantiateMaterials();

	/// find the first cohesive material
	UInt cohesive_index = 0;

	while ((dynamic_cast<MaterialCohesive *>(materials[cohesive_index].get()) ==
	nullptr) &&
	cohesive_index <= materials.size())
	++cohesive_index;

	AKANTU_DEBUG_ASSERT(cohesive_index != materials.size(),
	"No cohesive materials in the material input file");

	material_selector->setFallback(cohesive_index);

	// set the facet information in the material in case of dynamic insertion
	if (is_extrinsic) {
	const Mesh & mesh_facets = inserter->getMeshFacets();
	facet_material.initialize(mesh_facets, _spatial_dimension =
	Model::spatial_dimension - 1);

	Element element;
	for (auto ghost_type : ghost_types) {
	element.ghost_type = ghost_type;
	for (auto & type :
	mesh_facets.elementTypes(Model::spatial_dimension - 1, ghost_type)) {
	element.type = type;
	Array<UInt> & f_material = facet_material(type, ghost_type);
	UInt nb_element = mesh_facets.getNbElement(type, ghost_type);
	f_material.resize(nb_element);
	f_material.set(cohesive_index);
	for (UInt el = 0; el < nb_element; ++el) {
	element.element = el;
	UInt mat_index = (*material_selector)(element);
	f_material(el) = mat_index;
	auto & mat = dynamic_cast<MaterialCohesive &>(*materials[mat_index]);
	mat.addFacet(element);
	}
	}
	}
	SolidMechanicsModel::initMaterials();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_synchronizer != nullptr)
	inserter->initParallel(facet_synchronizer, cohesive_element_synchronizer);
	// inserter->initParallel(facet_synchronizer, synch_parallel);
	#endif
	initAutomaticInsertion();
	} else {
	// TODO think of something a bit mor consistant than just coding the first
	// thing that comes in Fabian's head....
	using const_section_iterator = ParserSection::const_section_iterator;
	std::pair<const_section_iterator, const_section_iterator> sub_sections =
	this->parser.getSubSections(_st_mesh);

	if (sub_sections.first != sub_sections.second) {
	std::string cohesive_surfaces =
	sub_sections.first->getParameter("cohesive_surfaces");
	this->initIntrinsicCohesiveMaterials(cohesive_surfaces);
	} else {
	this->initIntrinsicCohesiveMaterials(cohesive_index);
	}
	}

	AKANTU_DEBUG_OUT();
	} // namespace akantu

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initIntrinsicCohesiveMaterials(
	const std::string & cohesive_surfaces) {

	AKANTU_DEBUG_IN();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_synchronizer != nullptr)
	inserter->initParallel(facet_synchronizer, cohesive_element_synchronizer);
	// inserter->initParallel(facet_synchronizer, synch_parallel);
	#endif
	std::istringstream split(cohesive_surfaces);
	std::string physname;
	while (std::getline(split, physname, ',')) {
	AKANTU_DEBUG_INFO(
	"Pre-inserting cohesive elements along facets from physical surface: "
	<< physname);
	insertElementsFromMeshData(physname);
	}

	synchronizeInsertionData();

	SolidMechanicsModel::initMaterials();

	auto && tmp = std::make_shared<MeshDataMaterialCohesiveSelector>(*this);
	tmp->setFallback(material_selector->getFallbackValue());
	tmp->setFallback(material_selector->getFallbackSelector());
	material_selector = tmp;

	// UInt nb_new_elements =
	inserter->insertElements();
	// if (nb_new_elements > 0) {
	// this->reinitializeSolver();
	// }

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::synchronizeInsertionData() {

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_synchronizer != nullptr) {
	facet_synchronizer->asynchronousSynchronize(*inserter, _gst_ce_groups);
	facet_synchronizer->waitEndSynchronize(*inserter, _gst_ce_groups);
	}
	#endif
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initIntrinsicCohesiveMaterials(
	UInt /cohesive_index/) {

	AKANTU_DEBUG_IN();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_synchronizer != nullptr)
	inserter->initParallel(facet_synchronizer, cohesive_element_synchronizer);
	// inserter->initParallel(facet_synchronizer, synch_parallel);
	#endif

	SolidMechanicsModel::initMaterials();

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	/**
	* Initialize the model,basically it pre-compute the shapes, shapes derivatives
	* and jacobian
	*
	*/
	void SolidMechanicsModelCohesive::initModel() {
	AKANTU_DEBUG_IN();

	SolidMechanicsModel::initModel();

	registerFEEngineObject<MyFEEngineCohesiveType>("CohesiveFEEngine", mesh,
	Model::spatial_dimension);

	/// add cohesive type connectivity
	ElementType type = _not_defined;

	for (auto && type_ghost : ghost_types) {
	for (const auto & tmp_type :
	mesh.elementTypes(spatial_dimension, type_ghost)) {
	const Array<UInt> & connectivity =
	mesh.getConnectivity(tmp_type, type_ghost);
	if (connectivity.size() == 0)
	continue;

	type = tmp_type;
	ElementType type_facet = Mesh::getFacetType(type);
	ElementType type_cohesive = FEEngine::getCohesiveElementType(type_facet);
	mesh.addConnectivityType(type_cohesive, type_ghost);
	}
	}

	AKANTU_DEBUG_ASSERT(type != _not_defined, "No elements in the mesh");

	getFEEngine("CohesiveFEEngine").initShapeFunctions(_not_ghost);
	getFEEngine("CohesiveFEEngine").initShapeFunctions(_ghost);

	registerFEEngineObject<MyFEEngineFacetType>(
	"FacetsFEEngine", mesh.getMeshFacets(), Model::spatial_dimension - 1);

	if (is_extrinsic) {
	getFEEngine("FacetsFEEngine").initShapeFunctions(_not_ghost);
	getFEEngine("FacetsFEEngine").initShapeFunctions(_ghost);
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::limitInsertion(BC::Axis axis,
	Real first_limit,
	Real second_limit) {
	AKANTU_DEBUG_IN();
	inserter->setLimit(axis, first_limit, second_limit);
	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::insertIntrinsicElements() {
	AKANTU_DEBUG_IN();
	// UInt nb_new_elements =
	inserter->insertIntrinsicElements();
	// if (nb_new_elements > 0) {
	// this->reinitializeSolver();
	// }
	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::insertElementsFromMeshData(
	const std::string & physname) {
	AKANTU_DEBUG_IN();

	UInt material_index = SolidMechanicsModel::getMaterialIndex(physname);
	inserter->insertIntrinsicElements(physname, material_index);
	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initAutomaticInsertion() {
	AKANTU_DEBUG_IN();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_stress_synchronizer != nullptr) {
	DataAccessor * data_accessor = this;
	const ElementTypeMapArray<UInt> & rank_to_element =
	synch_parallel->getPrankToElement();

	facet_stress_synchronizer->updateFacetStressSynchronizer(
	inserter, rank_to_element, data_accessor);
	}
	#endif

	facet_stress.initialize(inserter->getMeshFacets(),
	_nb_component = 2 * Model::spatial_dimension *
	Model::spatial_dimension,
	_spatial_dimension = Model::spatial_dimension - 1);

	// inserter->getMeshFacets().initElementTypeMapArray(
	// facet_stress, 2 * spatial_dimension * spatial_dimension,
	// spatial_dimension - 1);

	resizeFacetStress();

	/// compute normals on facets
	computeNormals();

	initStressInterpolation();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::updateAutomaticInsertion() {
	AKANTU_DEBUG_IN();

	inserter->limitCheckFacets();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (facet_stress_synchronizer != nullptr) {
	DataAccessor * data_accessor = this;
	const ElementTypeMapArray<UInt> & rank_to_element =
	synch_parallel->getPrankToElement();

	facet_stress_synchronizer->updateFacetStressSynchronizer(
	inserter, rank_to_element, data_accessor);
	}
	#endif

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::initStressInterpolation() {
	Mesh & mesh_facets = inserter->getMeshFacets();

	/// compute quadrature points coordinates on facets
	Array<Real> & position = mesh.getNodes();

	ElementTypeMapArray<Real> quad_facets("quad_facets", id);
	quad_facets.initialize(mesh_facets, _nb_component = Model::spatial_dimension,
	_spatial_dimension = Model::spatial_dimension - 1);
	// mesh_facets.initElementTypeMapArray(quad_facets, Model::spatial_dimension,
	// Model::spatial_dimension - 1);

	getFEEngine("FacetsFEEngine")
	.interpolateOnIntegrationPoints(position, quad_facets);

	/// compute elements quadrature point positions and build
	/// element-facet quadrature points data structure
	ElementTypeMapArray<Real> elements_quad_facets("elements_quad_facets", id);

	elements_quad_facets.initialize(
	mesh, _nb_component = Model::spatial_dimension,
	_spatial_dimension = Model::spatial_dimension);
	// mesh.initElementTypeMapArray(elements_quad_facets,
	// Model::spatial_dimension,
	// Model::spatial_dimension);

	for (auto elem_gt : ghost_types) {
	for (auto & type : mesh.elementTypes(Model::spatial_dimension, elem_gt)) {
	UInt nb_element = mesh.getNbElement(type, elem_gt);
	if (nb_element == 0)
	continue;

	/// compute elements' quadrature points and list of facet
	/// quadrature points positions by element
	Array<Element> & facet_to_element =
	mesh_facets.getSubelementToElement(type, elem_gt);
	UInt nb_facet_per_elem = facet_to_element.getNbComponent();

	Array<Real> & el_q_facet = elements_quad_facets(type, elem_gt);

	ElementType facet_type = Mesh::getFacetType(type);

	UInt nb_quad_per_facet =
	getFEEngine("FacetsFEEngine").getNbIntegrationPoints(facet_type);

	el_q_facet.resize(nb_element * nb_facet_per_elem * nb_quad_per_facet);

	for (UInt el = 0; el < nb_element; ++el) {
	for (UInt f = 0; f < nb_facet_per_elem; ++f) {
	Element global_facet_elem = facet_to_element(el, f);
	UInt global_facet = global_facet_elem.element;
	GhostType facet_gt = global_facet_elem.ghost_type;
	const Array<Real> & quad_f = quad_facets(facet_type, facet_gt);

	for (UInt q = 0; q < nb_quad_per_facet; ++q) {
	for (UInt s = 0; s < Model::spatial_dimension; ++s) {
	el_q_facet(el * nb_facet_per_elem * nb_quad_per_facet +
	f * nb_quad_per_facet + q,
	s) = quad_f(global_facet * nb_quad_per_facet + q, s);
	}
	}
	}
	}
	}
	}

	/// loop over non cohesive materials
	for (UInt m = 0; m < materials.size(); ++m) {
	try {
	auto & mat __attribute__((unused)) =
	dynamic_cast<MaterialCohesive &>(*materials[m]);
	} catch (std::bad_cast &) {
	/// initialize the interpolation function
	materials[m]->initElementalFieldInterpolation(elements_quad_facets);
	}
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::assembleInternalForces() {
	AKANTU_DEBUG_IN();

	// f_int += f_int_cohe
	for (auto & material : this->materials) {
	try {
	auto & mat = dynamic_cast<MaterialCohesive &>(*material);
	mat.computeTraction(_not_ghost);
	} catch (std::bad_cast & bce) {
	}
	}

	SolidMechanicsModel::assembleInternalForces();

	if (isDefaultSolverExplicit()) {
	for (auto & material : materials) {
	try {
	auto & mat = dynamic_cast<MaterialCohesive &>(*material);
	mat.computeEnergies();
	} catch (std::bad_cast & bce) {
	}
	}
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::computeNormals() {
	AKANTU_DEBUG_IN();

	Mesh & mesh_facets = this->inserter->getMeshFacets();
	this->getFEEngine("FacetsFEEngine")
	.computeNormalsOnIntegrationPoints(_not_ghost);

	/**
	* @todo store tangents while computing normals instead of
	* recomputing them as follows:
	*/
	/* ------------------------------------------------------------------------ */
	UInt tangent_components =
	Model::spatial_dimension * (Model::spatial_dimension - 1);

	tangents.initialize(mesh_facets, _nb_component = tangent_components,
	_spatial_dimension = Model::spatial_dimension - 1);
	// mesh_facets.initElementTypeMapArray(tangents, tangent_components,
	// Model::spatial_dimension - 1);

	for (auto facet_type :
	mesh_facets.elementTypes(Model::spatial_dimension - 1)) {
	const Array<Real> & normals =
	this->getFEEngine("FacetsFEEngine")
	.getNormalsOnIntegrationPoints(facet_type);

	Array<Real> & tangents = this->tangents(facet_type);

	Math::compute_tangents(normals, tangents);
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::interpolateStress() {

	ElementTypeMapArray<Real> by_elem_result("temporary_stress_by_facets", id);

	for (auto & material : materials) {
	try {
	auto & mat __attribute__((unused)) =
	dynamic_cast<MaterialCohesive &>(*material);
	} catch (std::bad_cast &) {
	/// interpolate stress on facet quadrature points positions
	material->interpolateStressOnFacets(facet_stress, by_elem_result);
	}
	}

	#if defined(AKANTU_DEBUG_TOOLS)
	debug::element_manager.printData(
	debug::_dm_model_cohesive, "Interpolated stresses before", facet_stress);
	#endif

	this->synchronize(_gst_smmc_facets_stress);

	#if defined(AKANTU_DEBUG_TOOLS)
	debug::element_manager.printData(debug::_dm_model_cohesive,
	"Interpolated stresses", facet_stress);
	#endif
	}

	/* -------------------------------------------------------------------------- */
	UInt SolidMechanicsModelCohesive::checkCohesiveStress() {
	interpolateStress();

	for (auto & mat : materials) {
	try {
	auto & mat_cohesive = dynamic_cast<MaterialCohesive &>(*mat);
	/// check which not ghost cohesive elements are to be created
	mat_cohesive.checkInsertion();
	} catch (std::bad_cast &) {
	}
	}

	/// communicate data among processors
	this->synchronize(_gst_smmc_facets);

	/// insert cohesive elements
	UInt nb_new_elements = inserter->insertElements();

	// if (nb_new_elements > 0) {
	// this->reinitializeSolver();
	// }

	return nb_new_elements;
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::onElementsAdded(
	const Array<Element> & element_list, const NewElementsEvent & event) {
	AKANTU_DEBUG_IN();

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	updateCohesiveSynchronizers();
	#endif

	SolidMechanicsModel::onElementsAdded(element_list, event);

	#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
	if (cohesive_element_synchronizer != nullptr)
	cohesive_element_synchronizer->computeAllBufferSizes(*this);
	#endif

	if (is_extrinsic)
	resizeFacetStress();

	/// if (method != _explicit_lumped_mass) {
	/// this->initSolver();
	/// }

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::onNodesAdded(const Array<UInt> & new_nodes,
	const NewNodesEvent & event) {
	AKANTU_DEBUG_IN();

	// Array<UInt> nodes_list(nb_new_nodes);

	// for (UInt n = 0; n < nb_new_nodes; ++n)
	// nodes_list(n) = doubled_nodes(n, 1);
	SolidMechanicsModel::onNodesAdded(new_nodes, event);

	UInt new_node, old_node;

	try {
	const auto & cohesive_event =
	dynamic_cast<const CohesiveNewNodesEvent &>(event);
	const auto & old_nodes = cohesive_event.getOldNodesList();

	auto copy = [this, &new_node, &old_node](auto & arr) {
	for (UInt s = 0; s < spatial_dimension; ++s) {
	arr(new_node, s) = arr(old_node, s);
	}
	};

	for (auto && pair : zip(new_nodes, old_nodes)) {
	std::tie(new_node, old_node) = pair;

	copy(*displacement);
	copy(*blocked_dofs);

	if (velocity)
	copy(*velocity);

	if (acceleration)
	copy(*acceleration);

	if (current_position)
	copy(*current_position);

	if (previous_displacement)
	copy(*previous_displacement);
	}

	// if (this->getDOFManager().hasMatrix("M")) {
	// this->assembleMass(old_nodes);
	// }

	// if (this->getDOFManager().hasLumpedMatrix("M")) {
	// this->assembleMassLumped(old_nodes);
	// }

	} catch (std::bad_cast &) {
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::onEndSolveStep(const AnalysisMethod &) {

	AKANTU_DEBUG_IN();

	/*
	* This is required because the Cauchy stress is the stress measure that
	* is used to check the insertion of cohesive elements
	*/
	for (auto & mat : materials) {
	if (mat->isFiniteDeformation())
	mat->computeAllCauchyStresses(_not_ghost);
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::printself(std::ostream & stream,
	int indent) const {
	std::string space;
	for (Int i = 0; i < indent; i++, space += AKANTU_INDENT)
	;

	stream << space << "SolidMechanicsModelCohesive [" << std::endl;

	SolidMechanicsModel::printself(stream, indent + 1);

	stream << space << "]" << std::endl;
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::resizeFacetStress() {
	AKANTU_DEBUG_IN();

	Mesh & mesh_facets = inserter->getMeshFacets();

	for (auto && ghost_type : ghost_types) {
	for (const auto & type :
	mesh_facets.elementTypes(spatial_dimension - 1, ghost_type)) {
	UInt nb_facet = mesh_facets.getNbElement(type, ghost_type);

	UInt nb_quadrature_points = getFEEngine("FacetsFEEngine")
	.getNbIntegrationPoints(type, ghost_type);

	UInt new_size = nb_facet * nb_quadrature_points;

	facet_stress(type, ghost_type).resize(new_size);
	}
	}

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */
	void SolidMechanicsModelCohesive::addDumpGroupFieldToDumper(
	const std::string & dumper_name, const std::string & field_id,
	const std::string & group_name, const ElementKind & element_kind,
	bool padding_flag) {
	AKANTU_DEBUG_IN();

	UInt spatial_dimension = Model::spatial_dimension;
	ElementKind _element_kind = element_kind;
	if (dumper_name == "cohesive elements") {
	_element_kind = _ek_cohesive;
	} else if (dumper_name == "facets") {
	spatial_dimension = Model::spatial_dimension - 1;
	}
	SolidMechanicsModel::addDumpGroupFieldToDumper(dumper_name, field_id,
	group_name, spatial_dimension,
	_element_kind, padding_flag);

	AKANTU_DEBUG_OUT();
	}

	/* -------------------------------------------------------------------------- */

	void SolidMechanicsModelCohesive::onDump() {
	this->flattenAllRegisteredInternals(_ek_cohesive);
	SolidMechanicsModel::onDump();
	}

	/* -------------------------------------------------------------------------- */

	} // namespace akantu

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