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kato_saturated.hh
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Fri, May 3, 05:45

kato_saturated.hh
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2022 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2022 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef KATO_SATURATED_HH
#define KATO_SATURATED_HH
/* -------------------------------------------------------------------------- */
#include "polonsky_keer_rey.hh"
#include <limits>
/* -------------------------------------------------------------------------- */
namespace tamaas {
/* -------------------------------------------------------------------------- */
/// Polonsky-Keer algorithm with saturation of the pressure
class KatoSaturated : public PolonskyKeerRey {
public:
/// Constructor
KatoSaturated(Model& model, const GridBase<Real>& surface, Real tolerance,
Real pmax);
~KatoSaturated() override = default;
public:
/// Solve
Real solve(std::vector<Real> load) override;
/// Mean on unsaturated constraint zone
Real meanOnUnsaturated(const GridBase<Real>& field) const override;
/// Compute squared norm
Real computeSquaredNorm(const GridBase<Real>& field) const override;
/// Update search direction
void updateSearchDirection(Real factor) override;
/// Compute critical step
Real computeCriticalStep(Real target = 0) override;
/// Update primal and check non-admissible state
bool updatePrimal(Real step) override;
/// Compute error/stopping criterion
Real computeError() override;
/// Enfore mean value constraint
void enforceMeanValue(Real mean) override;
/// Enforce contact constraints on final state
void enforceAdmissibleState() override;
/// Access to pmax
Real getPMax() const { return pmax; }
/// Set pax
void setPMax(Real p) {
if (p <= 0)
pmax = std::numeric_limits<Real>::max();
else
pmax = p;
}
protected:
Real pmax = std::numeric_limits<Real>::max(); ///< saturation pressure
};
} // namespace tamaas
#endif // KATO_SATURATED_HH

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