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rAKA/test/test_model/test_solid_mechanics_model/test_solid_mechanics_model_reassign_material.cc
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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;
}
/* -------------------------------------------------------------------------- */
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