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cell_split.cc
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/**
* @file cell_split.cc
*
* @author Ali Falsafi <ali.faslafi@epfl.ch>
*
* @date 19 Apr 2018
*
* @brief Implementation for cell base class
*
* Copyright © 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "cell/cell_base.hh"
#include "cell/cell_split.hh"
#include "common/ccoord_operations.hh"
#include "common/iterators.hh"
#include "common/tensor_algebra.hh"
#include <sstream>
#include <algorithm>
#include <boost/optional.hpp>
namespace muSpectre {
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
CellSplit<DimS, DimM>::CellSplit(Projection_ptr projection, SplittedCell is_cell_splitted )
:Parent(std::move(projection), is_cell_splitted) {}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
std::vector<Real> CellSplit<DimS, DimM>::get_intersected_ratios(){
auto nb_pixels = CcoordOps::get_size(this->subdomain_resolutions);
std::vector<Real> pixel_assigned_ratio(nb_pixels, 0.0);
for (auto & mat: this->materials) {
for (auto & pixel: *mat) {
auto index = CcoordOps::get_index(this->subdomain_resolutions,
this->subdomain_locations,
pixel);
pixel_assigned_ratio.at(index) += mat->get_assigned_ratio(pixel);
}
}
return pixel_assigned_ratio;
}
template <Dim_t DimS, Dim_t DimM>
template<class MaterialType, class ...InternalArgs>
void CellSplit<DimS, DimM>::complete_material_assignment(MaterialType& material, InternalArgs ... args){
auto nb_pixels = CcoordOps::get_size(this->subdomain_resolutions);
std::vector<Real> pixel_assigned_ratio(nb_pixels, 0.0);
for (auto & mat: this->materials) {
for (auto & pixel: *mat) {
auto index = CcoordOps::get_index(this->subdomain_resolutions,
this->subdomain_locations,
pixel);
pixel_assigned_ratio.at(index) += mat->get_assigned_ratio(pixel);
}
}
for (size_t i = 0; i < nb_pixels; ++i) {
if (pixel_assigned_ratio.at(i) < 1.0) {
material.add_pixel_split(CcoordOps::get_ccoord(this->subdomain_resolutions,
this->subdomain_locations, i), 1-pixel_assigned_ratio.at(i));
}
}
}
template <Dim_t DimS, Dim_t DimM>
void CellSplit<DimS, DimM>::check_material_coverage(){
auto nb_pixels = CcoordOps::get_size(this->subdomain_resolutions);
std::vector<Real> pixel_assigned_ratio(nb_pixels, 0.0);
for (auto & mat: this->materials) {
for (auto & pixel: *mat) {
auto index = CcoordOps::get_index(this->subdomain_resolutions,
this->subdomain_locations,
pixel);
pixel_assigned_ratio.at(index) += mat->get_assigned_ratio(pixel);
}
}
std::vector<Ccoord_t<DimM>> over_assigned_pixels;
std::vector<Ccoord_t<DimM>> under_assigned_pixels;
for (size_t i = 0; i < nb_pixels; ++i) {
if (pixel_assigned_ratio.at(i) > 1.0) {
over_assigned_pixels.push_back(CcoordOps::get_ccoord(this->subdomain_resolutions,
this->subdomain_locations, i));
}else if (pixel_assigned_ratio.at(i) < 1.0) {
under_assigned_pixels.push_back(CcoordOps::get_ccoord(this->subdomain_resolutions,
this->subdomain_locations, i));
}
}
if (over_assigned_pixels.size() != 0) {
std::stringstream err {};
err << "Execesive material is assigned to the following pixels: ";
for (auto & pixel: over_assigned_pixels) {
err << pixel << ", ";
}
err << "and that cannot be handled";
throw std::runtime_error(err.str());
}
if (under_assigned_pixels.size() != 0) {
std::stringstream err {};
err << "Insufficient material is assigned to the following pixels: ";
for (auto & pixel: under_assigned_pixels) {
err << pixel << ", ";
}
err << "and that cannot be handled";
throw std::runtime_error(err.str());
}
}
/* ---------------------------------------------------------------------- */
//this piece of code handles the evaluation of stress an dtangent matrix
//in case the cells have materials in which pixels are partially composed of
//diffferent materials.
template <Dim_t DimS, Dim_t DimM>
typename CellSplit<DimS, DimM>::FullResponse_t
CellSplit<DimS, DimM>::evaluate_stress_tangent(StrainField_t & F){
return evaluate_split_stress_tangent(F);
}
template <Dim_t DimS, Dim_t DimM>
typename CellSplit<DimS, DimM>::FullResponse_t
CellSplit<DimS, DimM>::evaluate_split_stress_tangent(StrainField_t & F){
if (this->initialised == false) {
this->initialise();
}
//! High level compatibility checks
if (F.size() != this->F.size()) {
throw std::runtime_error("Size mismatch");
}
constexpr bool create_tangent{true};
this->get_tangent(create_tangent);
// Here we should first set P and K matrixes equal to zeros first because we want to add up contribution
//of the partial influence of different materials assigend to each pixel. Therefore, this values should be
// initiialised as zero filled tensors
this->set_p_k_zero();
for (auto & mat: this->materials) {
mat->compute_stresses_tangent(F, this->P, this->K.value(),
this->get_formulation(), this->is_cell_splitted);
}
return std::tie(this->P, this->K.value());
}
template <Dim_t DimS, Dim_t DimM>
void CellSplit<DimS, DimM>::set_p_k_zero(){
this->P.set_zero();
this->K.value().get().set_zero();
}
template class CellSplit<twoD, twoD>;
template class CellSplit<threeD, threeD>;
} //muspectre

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