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/**
* @file solid_mechanics_model_cohesive.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Tue May 08 2012
* @date last modification: Mon Dec 14 2015
*
* @brief Solid mechanics model for cohesive elements
*
* @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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
#define __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__
#include "cohesive_element_inserter.hh"
#include "material_selector_cohesive.hh"
#include "solid_mechanics_model.hh"
#include "solid_mechanics_model_event_handler.hh"
#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
#include "facet_stress_synchronizer.hh"
#include "facet_synchronizer.hh"
#endif
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
struct FacetsCohesiveIntegrationOrderFunctor {
template <ElementType type, ElementType cohesive_type =
CohesiveFacetProperty<type>::cohesive_type>
struct _helper {
static constexpr int get() {
return ElementClassProperty<cohesive_type>::polynomial_degree;
}
};
template <ElementType type> struct _helper<type, _not_defined> {
static constexpr int get() {
return ElementClassProperty<type>::polynomial_degree;
}
};
template <ElementType type> static inline constexpr int getOrder() {
return _helper<type>::get();
}
};
/* -------------------------------------------------------------------------- */
struct SolidMechanicsModelCohesiveOptions : public SolidMechanicsModelOptions {
SolidMechanicsModelCohesiveOptions(
AnalysisMethod analysis_method = _explicit_lumped_mass,
bool extrinsic = false, bool no_init_materials = false)
: SolidMechanicsModelOptions(analysis_method, no_init_materials),
extrinsic(extrinsic) {}
bool extrinsic;
};
extern const SolidMechanicsModelCohesiveOptions
default_solid_mechanics_model_cohesive_options;
/* -------------------------------------------------------------------------- */
/* Solid Mechanics Model for Cohesive elements */
/* -------------------------------------------------------------------------- */
class SolidMechanicsModelCohesive : public SolidMechanicsModel,
public SolidMechanicsModelEventHandler {
/* ------------------------------------------------------------------------ */
/* 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 FEEngineTemplate<IntegratorGauss, ShapeLagrange, _ek_cohesive>
MyFEEngineCohesiveType;
typedef FEEngineTemplate<IntegratorGauss, ShapeLagrange, _ek_regular,
FacetsCohesiveIntegrationOrderFunctor>
MyFEEngineFacetType;
SolidMechanicsModelCohesive(Mesh & mesh,
UInt spatial_dimension = _all_dimensions,
const ID & id = "solid_mechanics_model_cohesive",
const MemoryID & memory_id = 0);
virtual ~SolidMechanicsModelCohesive();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// set the value of the time step
void setTimeStep(Real time_step);
/// assemble the residual for the explicit scheme
virtual 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 (returns the number of new cohesive
/// elements)
UInt checkCohesiveStress();
/// interpolate stress on facets
void interpolateStress();
/// initialize the cohesive model
void initFull(const ModelOptions & options =
default_solid_mechanics_model_cohesive_options);
/// initialize the model
void initModel();
/// initialize cohesive material
void initMaterials();
/// init facet filters for cohesive materials
void initFacetFilter();
/// limit the cohesive element insertion to a given area
void limitInsertion(BC::Axis axis, Real first_limit, Real second_limit);
/// update automatic insertion after a change in the element inserter
void updateAutomaticInsertion();
/// insert intrinsic cohesive elements
void insertIntrinsicElements();
// synchronize facets physical data before insertion along physical surfaces
void synchronizeInsertionData();
template <SolveConvergenceMethod cmethod, SolveConvergenceCriteria criteria>
bool solveStepCohesive(Real tolerance, Real & error, UInt max_iteration = 100,
bool load_reduction = false,
Real tol_increase_factor = 1.0,
bool do_not_factorize = false);
/// initialize stress interpolation
void initStressInterpolation();
private:
/// initialize cohesive material with intrinsic insertion (by default)
void initIntrinsicCohesiveMaterials(UInt cohesive_index);
/// initialize cohesive material with intrinsic insertion (if physical
/// surfaces are precised)
void initIntrinsicCohesiveMaterials(std::string cohesive_surfaces);
/// insert cohesive elements along a given physical surface of the mesh
void insertElementsFromMeshData(std::string physical_name);
/// initialize completely the model for extrinsic elements
void initAutomaticInsertion();
/// compute facets' normals
void computeNormals();
/// resize facet stress
void resizeFacetStress();
/// init facets_check array
void initFacetsCheck();
/* ------------------------------------------------------------------------ */
/* 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);
/* ------------------------------------------------------------------------ */
/* SolidMechanicsModelEventHandler inherited members */
/* ------------------------------------------------------------------------ */
public:
virtual void onEndSolveStep(const AnalysisMethod & method);
/* ------------------------------------------------------------------------ */
/* Dumpable interface */
/* ------------------------------------------------------------------------ */
public:
virtual void onDump();
virtual void addDumpGroupFieldToDumper(const std::string & dumper_name,
const std::string & field_id,
const std::string & group_name,
const ElementKind & element_kind,
bool padding_flag);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// get facet mesh
AKANTU_GET_MACRO(MeshFacets, mesh.getMeshFacets(), const Mesh &);
/// get stress on facets vector
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(StressOnFacets, facet_stress, Real);
/// get facet material
AKANTU_GET_MACRO_BY_ELEMENT_TYPE(FacetMaterial, facet_material, UInt);
/// get facet material
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(FacetMaterial, facet_material, UInt);
/// get facet material
AKANTU_GET_MACRO(FacetMaterial, facet_material,
const ElementTypeMapArray<UInt> &);
/// @todo THIS HAS TO BE CHANGED
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(Tangents, tangents, Real);
/// get element inserter
AKANTU_GET_MACRO_NOT_CONST(ElementInserter, *inserter,
CohesiveElementInserter &);
/// get is_extrinsic boolean
AKANTU_GET_MACRO(IsExtrinsic, is_extrinsic, bool);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// @todo store tangents when normals are computed:
ElementTypeMapArray<Real> tangents;
/// stress on facets on the two sides by quadrature point
ElementTypeMapArray<Real> facet_stress;
/// material to use if a cohesive element is created on a facet
ElementTypeMapArray<UInt> facet_material;
bool is_extrinsic;
/// cohesive element inserter
CohesiveElementInserter * inserter;
#if defined(AKANTU_PARALLEL_COHESIVE_ELEMENT)
#include "solid_mechanics_model_cohesive_parallel.hh"
#endif
};
/* -------------------------------------------------------------------------- */
/// standard output stream operator
inline std::ostream & operator<<(std::ostream & stream,
const SolidMechanicsModelCohesive & _this) {
_this.printself(stream);
return stream;
}
__END_AKANTU__
#include "solid_mechanics_model_cohesive_inline_impl.cc"
#endif /* __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH__ */
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