Page MenuHomec4science
Files F62670564

solid_mechanics_model_cohesive.hh
No OneTemporary
Actions

File Metadata

Created
Tue, May 14, 18:32

solid_mechanics_model_cohesive.hh
View Options

/**
* @file solid_mechanics_model_cohesive.hh
*
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date Tue May 08 13:01:18 2012
*
* @brief Solid mechanics model for cohesive elements
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 "solid_mechanics_model.hh"
#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
# include "facet_synchronizer.hh"
#endif
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
#define __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
__BEGIN_AKANTU__
class SolidMechanicsModelCohesive : public SolidMechanicsModel {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
class NewCohesiveNodesEvent : public NewNodesEvent {
public:
AKANTU_GET_MACRO_NOT_CONST(OldNodesList, old_nodes, Array<UInt> &);
AKANTU_GET_MACRO(OldNodesList, old_nodes, const Array<UInt> &);
protected:
Array<UInt> old_nodes;
};
typedef FEMTemplate<IntegratorGauss, ShapeLagrange, _ek_cohesive> MyFEMCohesiveType;
SolidMechanicsModelCohesive(Mesh & mesh,
UInt spatial_dimension = _all_dimensions,
const ID & id = "solid_mechanics_model_cohesive",
const MemoryID & memory_id = 0);
// virtual ~SolidMechanicsModelCohesive();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// assemble the residual for the explicit scheme
void updateResidual(bool need_initialize = true);
/// function to print the contain of the class
virtual void printself(std::ostream & stream, int indent = 0) const;
/// function to perform a stress check on each facet and insert
/// cohesive elements if needed
void checkCohesiveStress();
/// initialize the cohesive model
void initFull(std::string material_file,
AnalysisMethod method = _explicit_lumped_mass,
bool extrinsic = false,
bool init_facet_filter = true);
/// initialize the model
void initModel();
/// initialize cohesive material
void initCohesiveMaterial();
/// build fragments and compute their data (mass, velocity..)
void computeFragmentsData();
/// init facet filters for cohesive materials
void initFacetFilter();
private:
/// initialize completely the model for extrinsic elements
void initExtrinsic(std::string material_file, bool init_facet_filter);
/// build fragments list
void buildFragmentsList();
/// compute fragments' mass and velocity
void computeFragmentsMV();
/// compute facets' normals
void computeNormals();
/* ------------------------------------------------------------------------ */
/* Mesh Event Handler inherited members */
/* ------------------------------------------------------------------------ */
protected:
virtual void onNodesAdded (const Array<UInt> & nodes_list,
const NewNodesEvent & event);
virtual void onElementsAdded (const Array<Element> & nodes_list,
const NewElementsEvent & event);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// get cohesive index
AKANTU_GET_MACRO(CohesiveIndex, cohesive_index, UInt);
/// get facet mesh
AKANTU_GET_MACRO(MeshFacets, mesh_facets, const Mesh &);
/// get facets check vector
AKANTU_GET_MACRO_NOT_CONST(FacetsCheck, facets_check, Array<bool> &);
/// get stress on facets vector
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(StressOnFacets, facet_stress, Real);
/// get number of fragments
AKANTU_GET_MACRO(NbFragment, nb_fragment, UInt);
/// get fragment_to_element vectors
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(FragmentToElement, fragment_to_element, UInt);
/// get mass for each fragment
AKANTU_GET_MACRO(FragmentsMass, fragment_mass, const Array<Real> &);
/// get average velocity for each fragment
AKANTU_GET_MACRO(FragmentsVelocity, fragment_velocity, const Array<Real> &);
/// get center of mass coordinates for each fragment
AKANTU_GET_MACRO(FragmentsCenter, fragment_center, const Array<Real> &);
/// get facet material
AKANTU_GET_MACRO_BY_ELEMENT_TYPE(FacetMaterial, facet_material, UInt);
/// THIS HAS TO BE CHANGED
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(Tangents, tangents, Real);
/// get inverse normals
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(InvertedNormals, inverted_normals, Real);
/// get inverse tangents
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(InvertedTangents, inverted_tangents, Real);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// cohesive material index in materials vector
UInt cohesive_index;
/// mesh containing facets and their data structures
Mesh & mesh_facets;
/// vector containing facets in which cohesive elements can be automatically inserted
Array<bool> facets_check;
/// inverted normals
ByElementTypeReal inverted_normals;
/// inverted tangents
ByElementTypeReal inverted_tangents;
/// @todo store tangents when normals are computed:
ByElementTypeReal tangents;
/// list of stresses on facet quadrature points for every element
ByElementTypeReal stress_on_facet;
/// stress on facets on the two sides by quadrature point
ByElementTypeReal facet_stress;
/// fragment number for each element
ByElementTypeUInt fragment_to_element;
/// number of fragments
UInt nb_fragment;
/// mass for each fragment
Array<Real> fragment_mass;
/// average velocity for each fragment
Array<Real> fragment_velocity;
/// center of mass coordinates for each element
Array<Real> fragment_center;
/// facet in which cohesive elements are inserted
ByElementTypeArray<bool> facet_insertion;
/// list of doubled facets for every insertion
ByElementTypeUInt doubled_facets;
/// list of facets connected to each cohesive element
ByElementTypeUInt facets_to_cohesive_el;
/// cohesive elements connected to each facet
ByElementTypeUInt cohesive_el_to_facet;
/// flag to know if facets have been generated
bool facet_generated;
/// _not_ghost facet type
ElementType internal_facet_type;
/// material to use if a cohesive element is created on a facet
ByElementTypeUInt facet_material;
#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
#include "solid_mechanics_model_cohesive_parallel.hh"
#endif
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#if defined (AKANTU_PARALLEL_COHESIVE_ELEMENT)
# include "solid_mechanics_model_cohesive_inline_impl.cc"
#endif
/// standard output stream operator
inline std::ostream & operator <<(std::ostream & stream, const SolidMechanicsModelCohesive & _this)
{
_this.printself(stream);
return stream;
}
__END_AKANTU__
#endif /* __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__ */

Event Timeline

c4science · Help