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cohesive_eleme…

test_solid_mechanics_model_reassign_material.cc
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			/**
			* @file test_solid_mechanics_model_reassign_material.cc
			*
			* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
			*
			* @date creation: Mon Feb 10 2014
			* @date last modification: Tue Feb 20 2018
			*
			* @brief test the function reassign material
			*
			* @section LICENSE
			*
			* Copyright (©) 2014-2018 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 "aka_grid_dynamic.hh"
			#include "communicator.hh"
			#include "material.hh"
			#include "mesh_utils.hh"
			#include "solid_mechanics_model.hh"
			/* -------------------------------------------------------------------------- */

			using namespace akantu;

			class StraightInterfaceMaterialSelector : public MaterialSelector {
			public:
			StraightInterfaceMaterialSelector(SolidMechanicsModel & model,
			const std::string & mat_1_material,
			const std::string & mat_2_material,
			bool & horizontal, Real & pos_interface)
			: model(model), mat_1_material(mat_1_material),
			mat_2_material(mat_2_material), horizontal(horizontal),
			pos_interface(pos_interface) {
			Mesh & mesh = model.getMesh();
			UInt spatial_dimension = mesh.getSpatialDimension();

			/// store barycenters of all elements
			barycenters.initialize(mesh, _spatial_dimension = spatial_dimension,
			_nb_component = spatial_dimension);

			for (auto ghost_type : ghost_types) {
			Element e;
			e.ghost_type = ghost_type;

			Mesh::type_iterator it = mesh.firstType(spatial_dimension, ghost_type);
			Mesh::type_iterator last_type =
			mesh.lastType(spatial_dimension, ghost_type);
			for (; it != last_type; ++it) {
			UInt nb_element = mesh.getNbElement(*it, ghost_type);
			e.type = *it;
			Array<Real> & barycenter = barycenters(*it, ghost_type);
			barycenter.resize(nb_element);

			Array<Real>::iterator<Vector<Real>> bary_it =
			barycenter.begin(spatial_dimension);
			for (UInt elem = 0; elem < nb_element; ++elem) {
			e.element = elem;
			mesh.getBarycenter(e, *bary_it);
			++bary_it;
			}
			}
			}
			}

			UInt operator()(const Element & elem) {
			UInt spatial_dimension = model.getSpatialDimension();
			const Vector<Real> & bary = barycenters(elem.type, elem.ghost_type)
			.begin(spatial_dimension)[elem.element];

			/// check for a given element on which side of the material interface plane
			/// the bary center lies and assign corresponding material
			if (bary(!horizontal) < pos_interface) {
			return model.getMaterialIndex(mat_1_material);
			;
			}
			return model.getMaterialIndex(mat_2_material);
			;
			}

			bool isConditonVerified() {

			/// check if material has been (re)-assigned correctly
			Mesh & mesh = model.getMesh();
			UInt spatial_dimension = mesh.getSpatialDimension();
			GhostType ghost_type = _not_ghost;

			Mesh::type_iterator it = mesh.firstType(spatial_dimension, ghost_type);
			Mesh::type_iterator last_type =
			mesh.lastType(spatial_dimension, ghost_type);
			for (; it != last_type; ++it) {
			Array<UInt> & mat_indexes = model.getMaterialByElement(*it, ghost_type);
			UInt nb_element = mesh.getNbElement(*it, ghost_type);
			Array<Real>::iterator<Vector<Real>> bary =
			barycenters(*it, ghost_type).begin(spatial_dimension);
			for (UInt elem = 0; elem < nb_element; ++elem, ++bary) {
			/// compare element_index_by material to material index that should be
			/// assigned due to the geometry of the interface
			UInt mat_index;
			if ((*bary)(!horizontal) < pos_interface)
			mat_index = model.getMaterialIndex(mat_1_material);
			else
			mat_index = model.getMaterialIndex(mat_2_material);

			if (mat_indexes(elem) != mat_index)
			/// wrong material index, make test fail
			return false;
			}
			}
			return true;
			}

			void moveInterface(Real & pos_new, bool & horizontal_new) {
			/// update position and orientation of material interface plane
			pos_interface = pos_new;
			horizontal = horizontal_new;
			model.reassignMaterial();
			}

			protected:
			SolidMechanicsModel & model;
			ElementTypeMapArray<Real> barycenters;
			std::string mat_1_material;
			std::string mat_2_material;
			bool horizontal;
			Real pos_interface;
			};

			/* -------------------------------------------------------------------------- */
			/* Main */
			/* -------------------------------------------------------------------------- */
			int main(int argc, char * argv[]) {

			bool test_passed;

			debug::setDebugLevel(dblWarning);
			initialize("two_materials.dat", argc, argv);

			/// specify position and orientation of material interface plane
			bool horizontal = true;
			Real pos_interface = 0.;

			UInt spatial_dimension = 3;

			const auto & comm = Communicator::getStaticCommunicator();
			Int prank = comm.whoAmI();

			Mesh mesh(spatial_dimension);

			if (prank == 0)
			mesh.read("cube_two_materials.msh");
			mesh.distribute();

			/// model creation
			SolidMechanicsModel model(mesh);

			/// assign the two different materials using the
			/// StraightInterfaceMaterialSelector

			auto && mat_selector = std::make_shared<StraightInterfaceMaterialSelector>(
			model, "mat_1", "mat_2", horizontal, pos_interface);

			model.setMaterialSelector(mat_selector);
			model.initFull(_analysis_method = _static);
			MeshUtils::buildFacets(mesh);

			/// check if different materials have been assigned correctly
			test_passed = mat_selector->isConditonVerified();
			if (!test_passed) {
			AKANTU_ERROR("materials not correctly assigned");
			return EXIT_FAILURE;
			}

			/// change orientation of material interface plane
			horizontal = false;
			mat_selector->moveInterface(pos_interface, horizontal);

			// model.dump();

			/// test if material has been reassigned correctly
			test_passed = mat_selector->isConditonVerified();
			if (!test_passed) {
			AKANTU_ERROR("materials not correctly reassigned");
			return EXIT_FAILURE;
			}

			finalize();

			if (prank == 0)
			std::cout << "OK: test passed!" << std::endl;

			return EXIT_SUCCESS;
			}

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

rAKA/test/test_model/test_solid_mechanics_model/test_solid_mechanics_model_reassign_material.cc5c785d1b9311bugfixes/cohesive_eleme…

test_solid_mechanics_model_reassign_material.ccView Options

rAKA/test/test_model/test_solid_mechanics_model/test_solid_mechanics_model_reassign_material.cc
5c785d1b9311bugfixes/cohesive_eleme…

test_solid_mechanics_model_reassign_material.cc
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