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solid_mechanics_model_cohesive.hh
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rAKA akantu
solid_mechanics_model_cohesive.hh
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/**
* @file solid_mechanics_model_cohesive.hh
* @author Marco Vocialta <marco.vocialta@epfl.ch>
* @date Thu Apr 19 10:34:00 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"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
#define __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
__BEGIN_AKANTU__
class SolidMechanicsModelCohesive : public SolidMechanicsModel {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
typedef FEMTemplate< IntegratorCohesive<IntegratorGauss>, ShapeCohesive<ShapeLagrange> > MyFEMCohesiveType;
SolidMechanicsModelCohesive(Mesh & mesh,
UInt spatial_dimension = 0,
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();
/// function to insert cohesive elements on the selected facets
void insertCohesiveElements(const Vector<UInt> & facet_insertion);
/// function to insert cohesive elements on the selected facets by specifying
/// the material
void insertCohesiveElements(const Vector<UInt> & facet_insertion,
const Vector<UInt> & facet_material);
/// initialize completely the model
void initFull(std::string material_file,
AnalysisMethod method = _explicit_dynamic);
/// initialize completely the model for extrinsic elements
void initExtrinsic();
/// initialize the model
void initModel();
/// initialize cohesive material
void initCohesiveMaterial();
/// build fragments and compute their data (mass, velocity..)
void computeFragmentsData();
private:
/// function to double a given facet and update the list of doubled
/// nodes
void doubleFacet(Element & facet, Vector<UInt> & doubled_nodes,
Vector<UInt> & doubled_facets);
/// function to double a subfacet given start and end index for
/// local facet_to_subfacet vector, and update the list of doubled
/// nodes
void doubleSubfacet(const Element & subfacet, UInt start, UInt end,
Vector<UInt> & doubled_nodes);
/// double middle nodes if facets are _segment_3
void doubleMiddleNode(Vector<UInt> & doubled_nodes,
const Vector<UInt> & doubled_facets);
/// function to update nodal parameters for doubled nodes
void updateDoubledNodes(const Vector<UInt> & doubled_nodes);
/// build fragments list
void buildFragmentsList();
/// compute fragments' mass and velocity
void computeFragmentsMV();
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// get the cohesive element type
AKANTU_GET_MACRO(CohesiveElementType, type_cohesive, ElementType);
/// get the cohesive index
AKANTU_GET_MACRO(CohesiveIndex, cohesive_index, UInt);
/// get the facet type
AKANTU_GET_MACRO(FacetType, type_facet, ElementType);
/// get the facet mesh
AKANTU_GET_MACRO(MeshFacets, mesh_facets, const Mesh &);
/// get the sigma limit vector for automatic insertion
AKANTU_GET_MACRO(SigmaLimit, sigma_lim, const Vector<Real> &);
AKANTU_GET_MACRO_NOT_CONST(SigmaLimit, sigma_lim, Vector<Real> &);
/// get the facets check vector
AKANTU_GET_MACRO_NOT_CONST(FacetsCheck, facets_check, Vector<bool> &);
/// get the stress on facets vector
AKANTU_GET_MACRO(StressOnFacets, facet_stress, const Vector<Real> &);
/// get the number of fragments
AKANTU_GET_MACRO(NbFragment, nb_fragment, UInt);
/// get the 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 Vector<Real> &);
/// get average velocity for each fragment
AKANTU_GET_MACRO(FragmentsVelocity, fragment_velocity, const Vector<Real> &);
/// get the center of mass coordinates for each fragment
AKANTU_GET_MACRO(FragmentsCenter, fragment_center, const Vector<Real> &);
/// THIS HAS TO BE CHANGED
AKANTU_GET_MACRO(Tangents, tangents, const Vector<Real> &);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// cohesive element type
ElementType type_cohesive;
/// facet type
ElementType type_facet;
/// cohesive material index in materials vector
UInt cohesive_index;
/// mesh containing facets and their data structures
Mesh mesh_facets;
/// vector containing a sigma limit for automatic insertion
Vector<Real> sigma_lim;
/// vector containing facets in which cohesive elements can be automatically inserted
Vector<bool> facets_check;
/// @todo store tangents when normals are computed:
Vector<Real> tangents;
/// list of stresses on facet quadrature points for every element
ByElementTypeReal stress_on_facet;
/// already counted facets in stress check
Vector<bool> facet_stress_count;
/// stress on facets on the two sides by quadrature point
Vector<Real> facet_stress;
/// list of facets connected to each cohesive element
Vector<UInt> facets_to_cohesive_el;
/// fragment number for each element
ByElementTypeUInt fragment_to_element;
/// number of fragments
UInt nb_fragment;
/// mass for each fragment
Vector<Real> fragment_mass;
/// average velocity for each fragment
Vector<Real> fragment_velocity;
/// center of mass coordinates for each element
Vector<Real> fragment_center;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
//#include "solid_mechanics_model_cohesive_inline_impl.cc"
/// 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__ */
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