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muSpectre/bin/small_case.cc
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/**
* @file small_case.cc
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 12 Jan 2018
*
* @brief small case for debugging
*
* Copyright © 2018 Till Junge
*
* µSpectre 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, 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 Lesser General Public License
* along with µSpectre; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* * Boston, MA 02111-1307, USA.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining it
* with proprietary FFT implementations or numerical libraries, containing parts
* covered by the terms of those libraries' licenses, the licensors of this
* Program grant you additional permission to convey the resulting work.
*/
#include "common/common.hh"
#include "common/iterators.hh"
#include "cell/cell_factory.hh"
#include "materials/material_linear_elastic1.hh"
#include "solver/solvers.hh"
#include "solver/solver_cg.hh"
#include <iostream>
using namespace muSpectre;
int main() {
constexpr Dim_t dim{twoD};
Ccoord_t<dim> resolution{11, 11};
Rcoord_t<dim> lengths{
CcoordOps::get_cube<dim>(11.)}; // {5.2e-9, 8.3e-9, 8.3e-9};
Formulation form{Formulation::finite_strain};
auto rve{make_cell(resolution, lengths, form)};
auto & hard{MaterialLinearElastic1<dim, dim>::make(rve, "hard", 210., .33)};
auto & soft{MaterialLinearElastic1<dim, dim>::make(rve, "soft", 70., .33)};
for (auto && tup : akantu::enumerate(rve)) {
auto & i = std::get<0>(tup);
auto & pixel = std::get<1>(tup);
if (i < 3) {
hard.add_pixel(pixel);
} else {
soft.add_pixel(pixel);
}
}
rve.initialise();
Real tol{1e-6};
Eigen::MatrixXd Del0{};
Del0 << 0, .1, 0, 0;
Uint maxiter{31};
Dim_t verbose{3};
SolverCG cg{rve, tol, maxiter, static_cast<bool>(verbose)};
auto res = de_geus(rve, Del0, cg, tol, verbose);
std::cout << res.grad.transpose() << std::endl;
return 0;
}
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