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solid_mechanics_model_cohesive.hh
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solid_mechanics_model_cohesive.hh
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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 Feb 05 2018
*
* @brief Solid mechanics model for cohesive elements
*
*
* Copyright (©) 2010-2018 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 "cohesive_element_inserter.hh"
#include "material_selector_cohesive.hh"
#include "random_internal_field.hh" // included to have the specialization of
// ParameterTyped::operator Real()
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH_
#define AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH_
/* -------------------------------------------------------------------------- */
namespace akantu {
class FacetSynchronizer;
class FacetStressSynchronizer;
class ElementSynchronizer;
} // namespace akantu
namespace 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();
}
};
/* -------------------------------------------------------------------------- */
/* 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;
};
using MyFEEngineCohesiveType =
FEEngineTemplate<IntegratorGauss, ShapeLagrange, _ek_cohesive>;
using MyFEEngineFacetType =
FEEngineTemplate<IntegratorGauss, ShapeLagrange, _ek_regular,
FacetsCohesiveIntegrationOrderFunctor>;
SolidMechanicsModelCohesive(Mesh & mesh, UInt dim = _all_dimensions,
const ID & id = "solid_mechanics_model_cohesive",
const MemoryID & memory_id = 0);
~SolidMechanicsModelCohesive() override;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
protected:
/// initialize the cohesive model
void initFullImpl(const ModelOptions & options) override;
public:
/// set the value of the time step
void setTimeStep(Real time_step, const ID & solver_id = "") override;
/// assemble the residual for the explicit scheme
void assembleInternalForces() override;
/// 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();
/// update automatic insertion after a change in the element inserter
void updateAutomaticInsertion();
/// insert intrinsic cohesive elements
void insertIntrinsicElements();
// 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);
protected:
/// initialize stress interpolation
void initStressInterpolation();
/// initialize the model
void initModel() override;
/// initialize cohesive material
void initMaterials() override;
/// init facet filters for cohesive materials
void initFacetFilter();
/// function to print the contain of the class
void printself(std::ostream & stream, int indent = 0) const override;
private:
/// insert cohesive elements along a given physical surface of the mesh
void insertElementsFromMeshData(const 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:
void onNodesAdded(const Array<UInt> & new_nodes,
const NewNodesEvent & event) override;
void onElementsAdded(const Array<Element> & element_list,
const NewElementsEvent & event) override;
/* ------------------------------------------------------------------------ */
/* SolidMechanicsModelEventHandler inherited members */
/* ------------------------------------------------------------------------ */
public:
void afterSolveStep(bool converged = true) override;
/* ------------------------------------------------------------------------ */
/* Dumpable interface */
/* ------------------------------------------------------------------------ */
public:
void onDump() override;
void addDumpGroupFieldToDumper(const std::string & dumper_name,
const std::string & field_id,
const std::string & group_name,
ElementKind element_kind,
bool padding_flag) override;
public:
/// register the tags associated with the parallel synchronizer for
/// cohesive elements
// void initParallel(MeshPartition * partition,
// DataAccessor * data_accessor = NULL,
// bool extrinsic = false);
protected:
//void synchronizeGhostFacetsConnectivity();
void updateCohesiveSynchronizers(NewElementsEvent & elements_event);
void updateFacetStressSynchronizer();
friend class CohesiveElementInserter;
/* ------------------------------------------------------------------------ */
/* Data Accessor inherited members */
/* ------------------------------------------------------------------------ */
public:
UInt getNbData(const Array<Element> & elements,
const SynchronizationTag & tag) const override;
void packData(CommunicationBuffer & buffer, const Array<Element> & elements,
const SynchronizationTag & tag) const override;
void unpackData(CommunicationBuffer & buffer, const Array<Element> & elements,
const SynchronizationTag & tag) override;
protected:
UInt getNbQuadsForFacetCheck(const Array<Element> & elements) const;
template <typename T>
void packFacetStressDataHelper(const ElementTypeMapArray<T> & data_to_pack,
CommunicationBuffer & buffer,
const Array<Element> & elements) const;
template <typename T>
void unpackFacetStressDataHelper(ElementTypeMapArray<T> & data_to_unpack,
CommunicationBuffer & buffer,
const Array<Element> & elements) const;
template <typename T, bool pack_helper>
void packUnpackFacetStressDataHelper(ElementTypeMapArray<T> & data_to_pack,
CommunicationBuffer & buffer,
const Array<Element> & element) const;
/* ------------------------------------------------------------------------ */
/* 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);
/// get cohesive elements synchronizer
AKANTU_GET_MACRO_NOT_CONST(CohesiveSynchronizer, *cohesive_synchronizer,
ElementSynchronizer &);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
friend class CohesiveMeshGlobalDataUpdater;
/// @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{false};
/// cohesive element inserter
std::unique_ptr<CohesiveElementInserter> inserter;
/// facet stress synchronizer
std::unique_ptr<ElementSynchronizer> facet_stress_synchronizer;
/// cohesive elements synchronizer
std::unique_ptr<ElementSynchronizer> cohesive_synchronizer;
};
} // namespace akantu
#include "solid_mechanics_model_cohesive_inline_impl.hh"
#endif /* AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_HH_ */

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