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tamaas/src/solvers/polonsky_keer_rey.hh
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/**
* @file
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016-2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas 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.
*
* Tamaas 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 Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __POLONSKY_KEER_REY_HH__
#define __POLONSKY_KEER_REY_HH__
/* -------------------------------------------------------------------------- */
#include "contact_solver.hh"
#include "meta_functional.hh"
#include "tamaas.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
class PolonskyKeerRey : public ContactSolver {
public:
/// Types of algorithm (primal/dual) or constraint
enum type { gap, pressure };
public:
/// Constructor
PolonskyKeerRey(Model& model, const GridBase<Real>& surface, Real tolerance,
type variable_type, type constraint_type);
/// Destructor
~PolonskyKeerRey() override;
public:
/// Solve
Real solve(Real target);
/// Mean on unsaturated constraint zone
Real meanOnUnsaturated(const GridBase<Real>& field) const;
/// Compute squared norm
Real computeSquaredNorm(const GridBase<Real>& field) const;
/// Update search direction
void updateSearchDirection(Real factor);
/// Compute critical step
Real computeCriticalStep(Real target = 0);
/// Update primal and check non-admissible state
bool updatePrimal(Real step);
/// Compute error/stopping criterion
Real computeError();
protected:
type variable_type, constraint_type;
GridBase<Real>* primal = nullptr;
GridBase<Real>* dual = nullptr;
GridBase<Real>* search_direction = nullptr;
GridBase<Real>* projected_search_direction = nullptr;
functional::MetaFunctional functional;
};
__END_TAMAAS__
#endif // __POLONSKY_KEER_REY_HH__
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