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damage.h
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damage.h
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/*
* Copyright (c) 2019: Ruhr University Bochum
* Authors: Andreas Vogel
*
* This file is part of UG4.
*
* UG4 is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License version 3 (as published by the
* Free Software Foundation) with the following additional attribution
* requirements (according to LGPL/GPL v3 §7):
*
* (1) The following notice must be displayed in the Appropriate Legal Notices
* of covered and combined works: "Based on UG4 (www.ug4.org/license)".
*
* (2) The following notice must be displayed at a prominent place in the
* terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
*
* (3) The following bibliography is recommended for citation and must be
* preserved in all covered files:
* "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
* parallel geometric multigrid solver on hierarchically distributed grids.
* Computing and visualization in science 16, 4 (2013), 151-164"
* "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
* flexible software system for simulating pde based models on high performance
* computers. Computing and visualization in science 16, 4 (2013), 165-179"
*
* This program 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.
*/
#ifndef __SMALL_STRAIN_MECHANICS__DAMAGE_H_
#define __SMALL_STRAIN_MECHANICS__DAMAGE_H_
#include "lib_disc/function_spaces/grid_function.h"
#include "lib_disc/common/geometry_util.h"
#include "lib_grid/refinement/refiner_interface.h"
#include "lib_disc/function_spaces/grid_function_util.h"
namespace ug{
namespace SmallStrainMechanics{
////////////////////////////////////////////////////////////////////////////////
// Helper traits for constraints
////////////////////////////////////////////////////////////////////////////////
template <int dim> struct contrained_dim_traits;
template <> struct contrained_dim_traits<2>
{
typedef ConstrainedEdge contrained_side_type;
typedef ConstrainingEdge contraining_side_type;
};
template <> struct contrained_dim_traits<3>
{
typedef ConstrainedFace contrained_side_type;
typedef ConstrainingFace contraining_side_type;
};
template <int dim>
void AveragePositions( MathVector<dim>& vCenter,
const std::vector<MathVector<dim> >& vCornerCoords);
template <typename TDomain>
void CollectSurfaceNeighbors(
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF, // some dummy function
typename grid_dim_traits<TDomain::dim>::element_type* elem,
std::vector< typename grid_dim_traits<TDomain::dim>::element_type* >& vNeighbors);
template <typename TDomain>
void CollectStencilNeighbors_NeumannZeroBND_IndexAndDistance
(
std::vector< typename grid_dim_traits<TDomain::dim>::element_type* >& vElem,
std::vector<size_t>& vIndex,
std::vector< MathVector<TDomain::dim> >& vDistance,
typename grid_dim_traits<TDomain::dim>::element_type* elem,
typename TDomain::grid_type& grid,
typename TDomain::position_accessor_type& aaPos,
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF, bool fillElemSizeIntoVector = false
);
template <typename TDomain>
void InitLaplacian_TaylorExpansion(
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
std::vector< std::vector< number > >& vStencil,
std::vector< std::vector<size_t> >& vIndex, bool fillElemSizeIntoVector = false);
template <typename TDomain>
void InitLaplacian_LeastSquares(
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
std::vector< std::vector< number > >& vStencil,
std::vector< std::vector<size_t> >& vIndex, bool fillElemSizeIntoVector = false);
template <typename TDomain>
void InitLaplacian_PartialIntegration(
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
std::vector< std::vector< number > >& vStencil,
std::vector< std::vector<size_t> >& vIndex,
int quadRuleType, bool fillElemSizeIntoVector = false);
////////////////////////////////////////////////////////////////////////////////
// Damage updater
////////////////////////////////////////////////////////////////////////////////
template <typename TDomain>
class DamageFunctionUpdater
{
public:
static const int dim = TDomain::dim;
typedef typename TDomain::grid_type TGrid;
typedef typename grid_dim_traits<dim>::element_type TElem;
typedef typename grid_dim_traits<dim>::side_type TSide;
typedef typename contrained_dim_traits<dim>::contrained_side_type TContrainedSide;
typedef typename contrained_dim_traits<dim>::contraining_side_type TContrainingSide;
typedef typename TDomain::position_accessor_type TPositionAccessor;
/////////////////////////////////////////////////
// Setup and Solve
/////////////////////////////////////////////////
public:
DamageFunctionUpdater() : m_discType(_LEAST_SQUARES_), m_quadRuleType(2) {}
void set_disc_type(const std::string& type);
void set_quad_rule(int quadRuleType) {m_quadRuleType = quadRuleType;}
bool solve( SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spPsi0,
const number beta, const number r,
const number eps, const int maxIter, const number dampNewton);
int last_num_iterations() const {return m_lastNumIters;}
protected:
enum DiscType {_LEAST_SQUARES_, _TAYLOR_EXPANSION_, _PARTIAL_INTEGRATION_, _TAYLOR_DIRECT_};
int m_discType;
int m_quadRuleType; // 1 = Midpoint, 2 = Simpson
int m_lastNumIters;
RevisionCounter m_ApproxSpaceRevision; // approximation space revision of cached values
/////////////////////////////////////////////////
// Implementation
/////////////////////////////////////////////////
protected:
number DLambda(size_t i) {return m_vStencil[i][0];}
number Lambda(size_t i, SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF)
{
number res = 0.0;
for (size_t j = 0; j < m_vIndex[i].size(); ++j)
res += m_vStencil[i][j] * (*spF)[ m_vIndex[i][j] ];
return res;
}
std::vector< std::vector< number > > m_vStencil;
std::vector< std::vector<size_t> > m_vIndex;
public:
void set_debug(SmartPtr<GridFunctionDebugWriter<TDomain, CPUAlgebra> > spDebugWriter);
protected:
SmartPtr<GridFunctionDebugWriter<TDomain, CPUAlgebra> > m_spDebugWriter;
void write_debug(SmartPtr<GridFunction<TDomain, CPUAlgebra> > spGF, std::string name, int call, int iter);
void write_stencil_matrix_debug(SmartPtr<GridFunction<TDomain, CPUAlgebra> > spGF, std::string name, int call);
};
////////////////////////////////////////////////////////////////////////////////
// RelativeDensityUpdater
////////////////////////////////////////////////////////////////////////////////
template <typename TDomain>
class RelativeDensityUpdater
{
public:
static const int dim = TDomain::dim;
typedef typename TDomain::grid_type TGrid;
typedef typename grid_dim_traits<dim>::element_type TElem;
typedef typename grid_dim_traits<dim>::side_type TSide;
typedef typename contrained_dim_traits<dim>::contrained_side_type TContrainedSide;
typedef typename contrained_dim_traits<dim>::contraining_side_type TContrainingSide;
typedef typename TDomain::position_accessor_type TPositionAccessor;
RelativeDensityUpdater() : m_discType(_LEAST_SQUARES_), m_quadRuleType(2), m_bEnforceLocalRequiredBeta(false) {}
public:
std::vector<number> solve( SmartPtr<GridFunction<TDomain, CPUAlgebra> > spChi,
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spDrivingForce,
const number betaStar, const number etaChiStar,
const number chiMin, const number dt, const int p,
const number rho_target, const number MassTol);
void set_disc_type(const std::string& type);
void set_enforce_local_required_beta(bool bEnforce) {m_bEnforceLocalRequiredBeta = bEnforce;}
void set_quad_rule(int quadRuleType) {m_quadRuleType = quadRuleType;}
protected:
enum DiscType {_LEAST_SQUARES_, _TAYLOR_EXPANSION_, _PARTIAL_INTEGRATION_, _TAYLOR_DIRECT_};
int m_discType;
int m_quadRuleType; // 1 = Midpoint, 2 = Simpson
bool m_bEnforceLocalRequiredBeta;
RevisionCounter m_ApproxSpaceRevision; // approximation space revision of cached values
/////////////////////////////////////////////////
// Implementation
/////////////////////////////////////////////////
protected:
number DLambda(size_t i) {return m_vStencil[i][0];}
number Lambda(size_t i, SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF)
{
number res = 0.0;
for (size_t j = 0; j < m_vIndex[i].size(); ++j)
res += m_vStencil[i][j] * (*spF)[ m_vIndex[i][j] ];
return res;
}
std::vector< std::vector< number > > m_vStencil;
std::vector< std::vector<size_t> > m_vIndex;
protected:
SmartPtr<GridFunction<TDomain, CPUAlgebra> > m_spElemSize;
SmartPtr<GridFunction<TDomain, CPUAlgebra> > m_spLaplaceChi;
SmartPtr<GridFunction<TDomain, CPUAlgebra> > m_spChiTrial;
public:
void set_debug(SmartPtr<GridFunctionDebugWriter<TDomain, CPUAlgebra> > spDebugWriter);
protected:
SmartPtr<GridFunctionDebugWriter<TDomain, CPUAlgebra> > m_spDebugWriter;
void write_debug(SmartPtr<GridFunction<TDomain, CPUAlgebra> > spGF, std::string name, int call, int iter);
void write_stencil_matrix_debug(SmartPtr<GridFunction<TDomain, CPUAlgebra> > spGF, std::string name, int call);
};
////////////////////////////////////////////////////////////////////////////////
// Damage marking
////////////////////////////////////////////////////////////////////////////////
template<typename TDomain>
void MarkDamage( SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spPsi0,
IRefiner& refiner,
number minValueToRefine, number maxValueToCoarsen,
int maxLevel,
const std::vector<MathVector<TDomain::dim,number>* >& vCenter,
const std::vector<number>& vRadius);
template<typename TDomain>
std::vector<number> DamageStatistic( SmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
SmartPtr<GridFunction<TDomain, CPUAlgebra> > spPsi0);
template<typename TDomain>
void HadamardProd( SmartPtr<GridFunction<TDomain, CPUAlgebra> > spFPsi0,
ConstSmartPtr<GridFunction<TDomain, CPUAlgebra> > spF,
ConstSmartPtr<GridFunction<TDomain, CPUAlgebra> > spPsi0);
} // end namespace SmallStrainMechanics
}// namespace ug
#include "damage_impl.h"
#endif /* __SMALL_STRAIN_MECHANICS__DAMAGE_H_ */