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material_non_local.hh
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			/**
			* @file material_non_local.hh
			*
			* @author Nicolas Richart <nicolas.richart@epfl.ch>
			*
			* @date creation: Wed Aug 31 2011
			* @date last modification: Thu Jun 05 2014
			*
			* @brief Material class that handle the non locality of a law for example damage.
			*
			* @section LICENSE
			*
			* Copyright (©) 2014 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 "aka_common.hh"
			#include "material.hh"
			#include "aka_grid_dynamic.hh"
			#include "fe_engine.hh"

			#include "weight_function.hh"

			namespace akantu {
			class GridSynchronizer;
			}

			/* -------------------------------------------------------------------------- */
			#ifndef __AKANTU_MATERIAL_NON_LOCAL_HH__
			#define __AKANTU_MATERIAL_NON_LOCAL_HH__

			__BEGIN_AKANTU__

			/* -------------------------------------------------------------------------- */
			template<UInt dim, template <UInt> class WeightFunction = BaseWeightFunction>
			class MaterialNonLocal : public virtual Material {
			/* ------------------------------------------------------------------------ */
			/* Constructors/Destructors */
			/* ------------------------------------------------------------------------ */
			public:

			MaterialNonLocal(SolidMechanicsModel & model, const ID & id = "");
			virtual ~MaterialNonLocal();

			template<typename T>
			class PairList : public ElementTypeMap< ElementTypeMapArray<T> > {};
			/* ------------------------------------------------------------------------ */
			/* Methods */
			/* ------------------------------------------------------------------------ */
			public:
			/// initialize the material computed parameter
			virtual void initMaterial();

			virtual void updateResidual(GhostType ghost_type);

			virtual void computeAllNonLocalStresses(GhostType ghost_type = _not_ghost);

			void savePairs(const std::string & filename) const;
			void neighbourhoodStatistics(const std::string & filename) const;

			protected:
			void updatePairList(const ElementTypeMapArray<Real> & quadrature_points_coordinates);

			void computeWeights(const ElementTypeMapArray<Real> & quadrature_points_coordinates);

			void createCellList(ElementTypeMapArray<Real> & quadrature_points_coordinates);

			void cleanupExtraGhostElement(const ElementTypeMap<UInt> & nb_ghost_protected);

			void fillCellList(const ElementTypeMapArray<Real> & quadrature_points_coordinates,
			const GhostType & ghost_type);

			/// constitutive law
			virtual void computeNonLocalStresses(GhostType ghost_type = _not_ghost) = 0;

			template<typename T>
			void weightedAvergageOnNeighbours(const ElementTypeMapArray<T> & to_accumulate,
			ElementTypeMapArray<T> & accumulated,
			UInt nb_degree_of_freedom,
			GhostType ghost_type2 = _not_ghost) const;

			virtual inline UInt getNbDataForElements(const Array<Element> & elements,
			SynchronizationTag tag) const;

			virtual inline void packElementData(CommunicationBuffer & buffer,
			const Array<Element> & elements,
			SynchronizationTag tag) const;

			virtual inline void unpackElementData(CommunicationBuffer & buffer,
			const Array<Element> & elements,
			SynchronizationTag tag);

			// virtual inline void onElementsAdded(const Array<Element> & element_list);
			virtual inline void onElementsRemoved(const Array<Element> & element_list,
			const ElementTypeMapArray<UInt> & new_numbering,
			const RemovedElementsEvent & event);

			/* ------------------------------------------------------------------------ */
			/* Accessors */
			/* ------------------------------------------------------------------------ */
			public:

			void registerNonLocalVariable(InternalField<Real> & local,
			InternalField<Real> & non_local,
			UInt nb_degree_of_freedom) {
			ID id = local.getID();
			NonLocalVariable & non_local_variable = non_local_variables[id];

			non_local_variable.local = &local;
			non_local_variable.non_local = &non_local;
			non_local_variable.nb_component = nb_degree_of_freedom;
			}

			AKANTU_GET_MACRO(PairList, pair_list, const PairList<UInt> &)
			Real getRadius() const { return weight_func->getRadius(); }
			AKANTU_GET_MACRO(CellList, *spatial_grid, const SpatialGrid<QuadraturePoint> &)

			/* ------------------------------------------------------------------------ */
			/* Class Members */
			/* ------------------------------------------------------------------------ */
			protected:

			/// the weight function used
			WeightFunction<dim> * weight_func;

			private:
			/// the pairs of quadrature points
			PairList<UInt> pair_list;
			/// the weights associated to the pairs
			PairList<Real> pair_weight;

			/// the regular grid to construct/update the pair lists
			SpatialGrid<QuadraturePoint> * spatial_grid;

			/// the types of the existing pairs
			typedef std::set< std::pair<ElementType, ElementType> > pair_type;
			pair_type existing_pairs[2];

			/// count the number of calls of computeStress
			UInt compute_stress_calls;

			struct NonLocalVariable {
			InternalField<Real> * local;
			InternalField<Real> * non_local;
			UInt nb_component;
			};

			std::map<ID, NonLocalVariable> non_local_variables;

			bool is_creating_grid;

			GridSynchronizer * grid_synchronizer;
			};


			/* -------------------------------------------------------------------------- */
			/* inline functions */
			/* -------------------------------------------------------------------------- */

			#include "material_non_local_inline_impl.cc"


			__END_AKANTU__

			#endif /* __AKANTU_MATERIAL_NON_LOCAL_HH__ */

rAKA/src/model/solid_mechanics/materials/material_non_local.hh848f0fd8c83bfeatures/friction_examp…

material_non_local.hhView Options

rAKA/src/model/solid_mechanics/materials/material_non_local.hh
848f0fd8c83bfeatures/friction_examp…

material_non_local.hh
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