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model.hh
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model.hh
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/**
* @file
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 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 __MODEL_HH__
#define __MODEL_HH__
/* -------------------------------------------------------------------------- */
#include "grid_base.hh"
#include "model_type.hh"
#include "be_engine.hh"
#include "tamaas.hh"
#include <memory>
#include <vector>
#include <algorithm>
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
/**
* @brief Model containing pressure and displacement
* This class is a container for the model fields. It is supposed to be
* dimension agnostic, hence the GridBase members.
*/
class Model {
protected:
/// Constructor
Model(const std::vector<Real>& system_size,
const std::vector<UInt>& discretization);
public:
/// Destructor
virtual ~Model() = default;
public:
/// Set elasticity parameters
void setElasticity(Real E, Real nu);
/// Get Hertz contact modulus
Real getHertzModulus() const;
/// Get Young's modulus
Real getYoungModulus() const { return E; }
/// Get Poisson's ratio
Real getPoissonRatio() const { return nu; }
/// Get shear modulus
Real getShearModulus() const { return E / (2 * (1 + nu)); }
/// Set Young's modulus
void setYoungModulus(Real E_) { this->E = E_; }
/// Set Poisson's ratio
void setPoissonRatio(Real nu_) { this->nu = nu_; }
public:
/// Get pressure
GridBase<Real>& getTraction();
/// Get pressure
const GridBase<Real>& getTraction() const;
/// Get displacement
GridBase<Real>& getDisplacement();
/// Get displacement
const GridBase<Real>& getDisplacement() const;
/// Get displacement on boundary
virtual GridBase<Real>& getBoundaryDisplacement() = 0;
/// Get model type
virtual ::tamaas::model_type getType() const = 0;
/// Get system physical size
const std::vector<Real>& getSystemSize() const;
/// Get discretization
const std::vector<UInt>& getDiscretization() const;
/// Get boundary element engine
BEEngine& getBEEngine() {
TAMAAS_ASSERT(engine, "BEEngine was not initialized");
return *engine;
}
/// Solve Neumann problem
void solveNeumann();
/// Solve Dirichlet problem
void solveDirichlet();
protected:
Real E = 1, nu = 0;
std::vector<Real> system_size;
std::vector<UInt> discretization;
std::unique_ptr<GridBase<Real>> traction = nullptr;
std::unique_ptr<GridBase<Real>> displacement = nullptr;
std::unique_ptr<BEEngine> engine = nullptr;
};
inline std::ostream& operator<<(std::ostream& o, const Model& _this) {
o << "Model<" << _this.getType() << "> (E = " << _this.getYoungModulus()
<< ", nu = " << _this.getPoissonRatio() << ")\n";
// Printing domain size
o << " - domain = [";
std::for_each(_this.getSystemSize().begin(), _this.getSystemSize().end() - 1,
[&o](const Real& x) { o << x << ", "; });
o << _this.getSystemSize().back() << "]\n";
// Printing discretization
o << " - discretization = [";
std::for_each(_this.getDiscretization().begin(),
_this.getDiscretization().end() - 1,
[&o](const UInt& x) { o << x << ", "; });
o << _this.getDiscretization().back() << "]";
return o;
}
__END_TAMAAS__
#endif // __MODEL_HH__

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