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material_cohesive_linear_uncoupled.hh
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/**
* @file material_cohesive_linear_uncoupled.hh
*
* @author Mauro Corrado <mauro.corrado@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Thu Feb 20 2020
*
* @brief Linear irreversible cohesive law of mixed mode loading with
* random stress definition for extrinsic type
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "material_cohesive_linear.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_MATERIAL_COHESIVE_LINEAR_UNCOUPLED_HH_
#define AKANTU_MATERIAL_COHESIVE_LINEAR_UNCOUPLED_HH_
/* -------------------------------------------------------------------------- */
namespace akantu {
/**
* Cohesive material linear with two different laws for mode I and
* mode II, for extrinsic case
*
* parameters in the material files :
* - roughness : define the interaction between mode I and mode II (default: 0)
*/
template <Int dim>
class MaterialCohesiveLinearUncoupled : public MaterialCohesiveLinear<dim> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
// typedef MaterialCohesiveLinear<spatial_dimension> MaterialParent;
public:
MaterialCohesiveLinearUncoupled(SolidMechanicsModel & model,
const ID & id = "");
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// initialize the material parameters
void initMaterial() override;
protected:
/// constitutive law
void computeTraction(const Array<Real> & normal, ElementType el_type,
GhostType ghost_type = _not_ghost) override;
/// compute tangent stiffness matrix
void computeTangentTraction(ElementType el_type, Array<Real> & tangent_matrix,
const Array<Real> & normal,
GhostType ghost_type) override;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
/// parameter to tune the interaction between mode II and mode I
Real R;
/// maximum normal displacement
CohesiveInternalField<Real> delta_n_max;
/// maximum tangential displacement
CohesiveInternalField<Real> delta_t_max;
/// damage associated to normal tractions
CohesiveInternalField<Real> damage_n;
/// damage associated to shear tractions
CohesiveInternalField<Real> damage_t;
};
} // namespace akantu
#endif /* AKANTU_MATERIAL_COHESIVE_LINEAR_UNCOUPLED_HH_ */
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