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tamaas/src/bem/squared_exponential_adhesion_functional.hh
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squared_exponential_adhesion_functional.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 __SQUARED_EXPONENTIAL_ADHESION_FUNCTIONAL_HH__
#define __SQUARED_EXPONENTIAL_ADHESION_FUNCTIONAL_HH__
#include "bem_fft_base.hh"
#include "bem_functional.hh"
namespace tamaas {
/// Energy functional (in displacement) that contains the adhesion term with
/// quadratic gap
class SquaredExponentialAdhesionFunctional : public Functional {
public:
/// Constructor
explicit SquaredExponentialAdhesionFunctional(BemFFTBase& bem);
/// Destructor
virtual ~SquaredExponentialAdhesionFunctional();
public:
/// Compute value of objective function
virtual Real computeF();
/// Compute gradient of objective function
virtual void computeGradFU();
/// Compute gradient of objective function
virtual void computeGradFP();
/// Compute the exponential term in functional
void computeExponentialTerm();
private:
/// Exponential term in functional
Surface<Real> exponential_term;
/// Surface tractions
Surface<Real> surface_t;
};
} // namespace tamaas
#endif // __SQUARED_EXPONENTIAL_ADHESION_FUNCTIONAL_HH__
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