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rAKA/src/model/solid_mechanics/materials/material_embedded/material_reinforcement.hh
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material_reinforcement.hh
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/**
* @file material_reinforcement.hh
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @date creation: Thu Mar 12 2015
* @date last modification: Thu Mar 12 2015
*
* @brief Reinforcement material
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MATERIAL_REINFORCEMENT_HH__
#define __AKANTU_MATERIAL_REINFORCEMENT_HH__
#include "aka_common.hh"
#include "material.hh"
#include "embedded_interface_model.hh"
#include "embedded_internal_field.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/**
* @brief Material used to represent embedded reinforcements
*
* This class is used for computing the reinforcement stiffness matrix
* along with the reinforcement residual. Room is made for constitutive law,
* but actual use of contitutive laws is made in MaterialReinforcementTemplate.
*
* Be careful with the dimensions in this class :
* - this->spatial_dimension is always 1
* - the template parameter dim is the dimension of the problem
*/
template<UInt dim>
class MaterialReinforcement : virtual public Material {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
/// Constructor
MaterialReinforcement(SolidMechanicsModel & model,
UInt spatial_dimension,
const Mesh & mesh,
FEEngine & fe_engine,
const ID & id = "");
/// Destructor
virtual ~MaterialReinforcement();
protected:
void initialize(SolidMechanicsModel & a_model);
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// Init the material
virtual void initMaterial();
/// Init the background shape derivatives
void initBackgroundShapeDerivatives();
/// Init the cosine matrices
void initDirectingCosines();
/// Assemble stiffness matrix
virtual void assembleStiffnessMatrix(GhostType ghost_type);
/// Update the residual
virtual void updateResidual(GhostType ghost_type = _not_ghost);
/// Assembled the residual
virtual void assembleResidual(GhostType ghost_type);
/// Compute all the stresses !
virtual void computeAllStresses(GhostType ghost_type);
/// Compute the stiffness parameter for elements of a type
virtual void computeTangentModuli(const ElementType & type,
Array<Real> & tangent,
GhostType ghost_type) = 0;
/// Compute energy
virtual Real getEnergy(std::string id);
// virtual ElementTypeMap<UInt> getInternalDataPerElem(const ID & field_name,
// const ElementKind & kind,
// const ID & fe_engine_id) const;
// /// Reimplementation of Material's function to accomodate for interface mesh
// virtual void flattenInternal(const std::string & field_id,
// ElementTypeMapArray<Real> & internal_flat,
// const GhostType ghost_type = _not_ghost,
// ElementKind element_kind = _ek_not_defined) const;
/* ------------------------------------------------------------------------ */
/* Protected methods */
/* ------------------------------------------------------------------------ */
protected:
/// Allocate the background shape derivatives
void allocBackgroundShapeDerivatives();
/// Compute the directing cosines matrix for one element type
void computeDirectingCosines(const ElementType & type, GhostType ghost_type);
/// Compute the directing cosines matrix on quadrature points.
inline void computeDirectingCosinesOnQuad(const Matrix<Real> & nodes,
Matrix<Real> & cosines);
/// Assemble the stiffness matrix for an element type (typically _segment_2)
void assembleStiffnessMatrix(const ElementType & type, GhostType ghost_type);
/// Assemble the stiffness matrix for background & interface types
void assembleStiffnessMatrixInterface(const ElementType & interface_type,
const ElementType & background_type,
GhostType ghost_type);
/// Compute the background shape derivatives for a type
void computeBackgroundShapeDerivatives(const ElementType & type, GhostType ghost_type);
/// Filter elements crossed by interface of a type
void filterInterfaceBackgroundElements(Array<UInt> & filter,
const ElementType & type,
const ElementType & interface_type,
GhostType ghost_type);
/// Assemble the residual of one type of element (typically _segment_2)
void assembleResidual(const ElementType & type, GhostType ghost_type);
/// Assemble the residual for a pair of elements
void assembleResidualInterface(const ElementType & interface_type,
const ElementType & background_type,
GhostType ghost_type);
// TODO figure out why voigt size is 4 in 2D
inline void stressTensorToVoigtVector(const Matrix<Real> & tensor, Vector<Real> & vector);
inline void strainTensorToVoigtVector(const Matrix<Real> & tensor, Vector<Real> & vector);
/// Compute gradu on the interface quadrature points
virtual void computeGradU(const ElementType & type, GhostType ghost_type);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
/// Embedded model
EmbeddedInterfaceModel * model;
/// Stress in the reinforcement
InternalField<Real> stress_embedded;
/// Gradu of concrete on reinforcement
InternalField<Real> gradu_embedded;
/// C matrix on quad
InternalField<Real> directing_cosines;
/// Prestress on quad
InternalField<Real> pre_stress;
/// Cross-sectional area
Real area;
/// Background mesh shape derivatives
ElementTypeMap< ElementTypeMapArray<Real> * > shape_derivatives;
};
#include "material_reinforcement_inline_impl.cc"
__END_AKANTU__
#endif // __AKANTU_MATERIAL_REINFORCEMENT_HH__
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