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bem_grid_polonski.hh
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rTAMAAS tamaas
bem_grid_polonski.hh
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/**
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016 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 __BEM_GRID_POLONSKI_HH__
#define __BEM_GRID_POLONSKI_HH__
/* -------------------------------------------------------------------------- */
#include "bem_grid_kato.hh"
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
// typedef for swig
typedef
Grid
<
Real
,
1
>
Grid1dReal
;
/**
* @brief multi component implementation of Polonski algorithm
* This method's main unknown is the pressure.
*/
class
BemGridPolonski
:
public
BemGridKato
{
public
:
/// Constructor
BemGridPolonski
(
Surface
<
Real
>&
surface
);
/// Destructor
virtual
~
BemGridPolonski
();
public
:
/* --------------------------------------------------------------------------
*/
/* Actual computations */
/* --------------------------------------------------------------------------
*/
/// Compute equilibrium
virtual
void
computeEquilibrium
(
Real
tol
,
const
Grid
<
Real
,
1
>&
p_target
);
/// Compute gap functional
Real
computeGradientNorm
();
/// Compute optimal step size
Real
computeOptimalStep
();
/// Center field on contact area
void
centerOnContactArea
(
Grid
<
Real
,
2
>&
field
);
/// Update search direction
void
updateSearchDirection
(
Real
delta
,
Real
G
,
Real
G_old
);
/// Update tractions
Real
updateTractions
(
Real
tau
);
/// Set pressure on all points
void
setPressure
(
const
Grid
<
Real
,
1
>&
p_target
);
protected
:
Grid
<
Real
,
2
>
search_direction
;
Grid
<
Real
,
2
>
projected_search_direction
;
};
}
// namespace tamaas
#endif
// __BEM_GRID_POLONSKI_HH__
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