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tamaas/tests/test_rough_surface.cpp
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test_rough_surface.cpp
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2023 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2023 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "tamaas.hh"
#include "isopowerlaw.hh"
#include "surface_generator_filter.hh"
#include "polonsky_keer_rey.hh"
#include "model_factory.hh"
/* -------------------------------------------------------------------------- */
using namespace tamaas;
int main() {
/// Surface parameters
UInt grid_size = 512;
const UInt k0 = 4, k1 = 4, k2 = 32;
const Real hurst = 0.8;
/// Surface generation (2D)
SurfaceGeneratorFilter<2> sg;
sg.setSizes({{grid_size, grid_size}});
sg.setRandomSeed(0);
auto iso = std::make_shared<Isopowerlaw<2>>();
iso->setQ0(k0);
iso->setQ1(k1);
iso->setQ2(k2);
iso->setHurst(hurst);
sg.setSpectrum(iso);
std::cout << "Building rough surface with properties\n"
<< " Q0 = " << k0 << '\n'
<< " Q1 = " << k1 << '\n'
<< " Q2 = " << k2 << '\n'
<< " Hurst = " << hurst << '\n'
<< " size = " << grid_size << 'x' << grid_size << std::endl;
/// Making surface
GridBase<Real> & grid = sg.buildSurface();
std::cout << "Creating model" << std::endl;
/// Model initialization
std::unique_ptr<Model> model{ModelFactory::createModel(
model_type::basic_2d, {1., 1.}, {grid_size, grid_size})};
Real load = 0.1;
Real precision = 1e-12;
std::cout << "Solving contact problem" << std::endl;
/// Solve normal contact problem
PolonskyKeerRey solver{*model, grid, precision, PolonskyKeerRey::pressure,
PolonskyKeerRey::pressure};
solver.solve(load);
std::cout << "Finished" << std::endl;
return EXIT_SUCCESS;
}
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