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material_cohesive_linear_friction.hh
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rAKA akantu
material_cohesive_linear_friction.hh
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/**
* @file material_cohesive_linear_friction.hh
*
* @author Mauro Corrado <mauro.corrado@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Tue Jan 12 2016
*
* @brief Linear irreversible cohesive law of mixed mode loading with
* random stress definition for extrinsic type
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 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_FRICTION_HH__
#define __AKANTU_MATERIAL_COHESIVE_LINEAR_FRICTION_HH__
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/**
* Cohesive material linear with friction force
*
* parameters in the material files :
* - mu : friction coefficient
* - penalty_for_friction : Penalty parameter for the friction behavior
*/
template
<
UInt
spatial_dimension
>
class
MaterialCohesiveLinearFriction
:
public
MaterialCohesiveLinear
<
spatial_dimension
>
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
typedef
MaterialCohesiveLinear
<
spatial_dimension
>
MaterialParent
;
public
:
MaterialCohesiveLinearFriction
(
SolidMechanicsModel
&
model
,
const
ID
&
id
=
""
);
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// initialize the material parameters
virtual
void
initMaterial
();
protected
:
/// constitutive law
virtual
void
computeTraction
(
const
Array
<
Real
>
&
normal
,
ElementType
el_type
,
GhostType
ghost_type
=
_not_ghost
);
/// check delta_max for cohesive elements in case of no convergence
/// in the solveStep (only for extrinsic-implicit)
virtual
void
checkDeltaMax
(
GhostType
ghost_type
=
_not_ghost
);
/// compute tangent stiffness matrix
virtual
void
computeTangentTraction
(
const
ElementType
&
el_type
,
Array
<
Real
>
&
tangent_matrix
,
const
Array
<
Real
>
&
normal
,
GhostType
ghost_type
);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected
:
/// maximum value of the friction coefficient
Real
mu_max
;
/// penalty parameter for the friction law
Real
friction_penalty
;
/// history parameter for the friction law
CohesiveInternalField
<
Real
>
residual_sliding
;
/// friction force
CohesiveInternalField
<
Real
>
friction_force
;
};
__END_AKANTU__
#endif
/* __AKANTU_MATERIAL_COHESIVE_LINEAR_FRICTION_HH__ */
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