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tamaas/src/adhesion_functional.hh
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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 ADHESION_FUNCTIONAL_H
#define ADHESION_FUNCTIONAL_H
#include "elastic_energy_functional.hh"
#include "bem_fft_base.hh"
/// Energy functional (in displacement) that contains the adhesion term from Müser's contest
class AdhesionFunctional : public ElasticEnergyFunctional {
public:
/// Constructor
explicit AdhesionFunctional(BemFFTBase & bem);
/// Destructor
virtual ~AdhesionFunctional();
public:
/// Compute value of objective function
virtual void computeF();
/// Compute gradient of objective function
virtual void computeGradF();
/// Compute the exponential term in functional
void computeExponentialTerm();
/// Set rho
void setRho(Real new_rho) { this->rho = new_rho; }
/// Set surface_energy
void setSurfaceEnergy(Real new_se) { this->surface_energy = new_se; }
private:
/// Dimension parameter
Real rho;
/// Energy required to seperate two surfaces
Real surface_energy;
/// Exponential term in functional
Surface<Real> exponential_term;
/// Spectral gap
SurfaceComplex<Real> spectral_gap;
};
#endif // ADHESION_FUNCTIONAL_H
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