#include <structuralnonlocalmaterialext.h>

Inheritance diagram for oofem::StructuralNonlocalMaterialExtensionInterface:

Collaboration diagram for oofem::StructuralNonlocalMaterialExtensionInterface:

Public Member Functions
	StructuralNonlocalMaterialExtensionInterface (Domain *d)
	~StructuralNonlocalMaterialExtensionInterface ()
	Destructor.
virtual void	updateBeforeNonlocAverage (const FloatArray &strainVector, GaussPoint gp, TimeStep tStep) const =0
Public Member Functions inherited from oofem::NonlocalMaterialExtensionInterface
	NonlocalMaterialExtensionInterface (Domain *d)
virtual	~NonlocalMaterialExtensionInterface ()
	Destructor.
void	updateDomainBeforeNonlocAverage (TimeStep *tStep) const
void	buildNonlocalPointTable (GaussPoint *gp) const
void	rebuildNonlocalPointTable (GaussPoint gp, IntArray contributingElems) const
void	modifyNonlocalWeightFunctionAround (GaussPoint *gp) const
void	modifyNonlocalWeightFunction_1D_Around (GaussPoint *gp) const
virtual double	giveNonlocalMetricModifierAt (GaussPoint *gp) const
double	computeDistanceModifier (double cl, double damage) const
double	computeModifiedLength (double length, double dam1, double dam2) const
std ::vector< localIntegrationRecord > *	giveIPIntegrationList (GaussPoint *gp) const
virtual double	computeWeightFunction (const double cl, const double distance) const
virtual double	computeWeightFunction (const double cl, const FloatArray &src, const FloatArray &coord) const
double	giveIntegralOfWeightFunction (double cl, const int spatial_dimension) const
virtual double	maxValueOfWeightFunction ()
	Determines the maximum value of the nonlocal weight function.
int	giveNumberOfRegions () const
virtual int	hasBoundedSupport () const
virtual double	evaluateSupportRadius (double cl) const
Domain *	giveDomain ()
	Returns reference to domain.
void	initializeFrom (InputRecord &ir)
void	giveInputRecord (DynamicInputRecord &input)
void	endIPNonlocalAverage (GaussPoint *gp) const
Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor.
virtual	~Interface ()
virtual const char *	giveClassName () const =0

Additional Inherited Members
Protected Types inherited from oofem::NonlocalMaterialExtensionInterface
enum	ScalingType { ST_Unknown , ST_Standard , ST_Noscaling , ST_Borino }
	Type characterizing the scaling approach. More...
enum	AveragedVarType { AVT_Unknown , AVT_EqStrain , AVT_Compliance , AVT_Damage }
	Type characterizing the averaged (nonlocal) variable. More...
enum	NlVariationType { NLVT_Standard , NLVT_DistanceBasedLinear , NLVT_StressBased , NLVT_DistanceBasedExponential }
	Type characterizing the Nonlocal variation. More...
Protected Member Functions inherited from oofem::NonlocalMaterialExtensionInterface
void	applyBarrierConstraints (const FloatArray &gpCoords, const FloatArray &jGpCoords, double &weight) const
void	manipulateWeight (double &weight, GaussPoint gp, GaussPoint jGp) const
double	giveDistanceBasedInteractionRadius (const FloatArray &gpCoords) const
int	mapToGridPoint (double x, double x0) const
double	mapToGridCoord (double x, double x0) const
double	dist2FromGridNode (double x, double y, int j, int i) const
Protected Attributes inherited from oofem::NonlocalMaterialExtensionInterface
Domain *	domain = nullptr
IntArray	regionMap
	Map indicating regions to skip (region - cross section model).
bool	permanentNonlocTableFlag = false
	Flag indicating whether to keep nonlocal interaction tables of integration points cached.
WeightFunctionType	weightFun
	Parameter specifying the type of nonlocal weight function.
int	gridSize = 0
	Grid on which the eikonal equation will be solved (used by eikonal nonlocal models).
double	initDiag = 0.
	Optional parameters setting details of the fast marching method.
int	order = 0
int	centDiff = 0
double	cl = 0.
double	suprad = 0.
	Support radius.
double	mm = 0.
	For "undernonlocal" or "overnonlocal" formulation.
ScalingType	scaling
	Parameter specifying the type of scaling of nonlocal weight function.
AveragedVarType	averagedVar
	Parameter specifying the type of averaged (nonlocal) variable.
double	cl0 = 0.
NlVariationType	nlvar
	Parameter specifying the type of nonlocal variation.
double	beta = 0.
double	zeta = 0.
double	px = 0.
double	Rf = 0.
	Final value of interaction radius, for a model with evolving characteristic length.
double	exponent = 0.
	Parameter used as an exponent by models with evolving characteristic length.
int	averType = 0
	Parameter specifying how the weight function should be adjusted due to damage.

Detailed Description

Abstract base class for all nonlocal structural materials. Nonlocal in the sense that the response at a particular point depends not only on the state of that point, but also takes into account the state of surrounding points. The response typically depends on some nonlocal quantity obtained as weighted average over some characteristic volume. This class declares the necessary interface for all nonlocal structural constitutive models. It also stores the parameters needed for nonlocal averaging and provides services for evaluation of the weight function.

Definition at line 61 of file structuralnonlocalmaterialext.h.

Constructor & Destructor Documentation

◆ StructuralNonlocalMaterialExtensionInterface()

oofem::StructuralNonlocalMaterialExtensionInterface::StructuralNonlocalMaterialExtensionInterface ( Domain * d )

inline

Constructor.

Parameters

d	Domain to which new material will belong.

Definition at line 68 of file structuralnonlocalmaterialext.h.

References oofem::NonlocalMaterialExtensionInterface::NonlocalMaterialExtensionInterface().

◆ ~StructuralNonlocalMaterialExtensionInterface()

oofem::StructuralNonlocalMaterialExtensionInterface::~StructuralNonlocalMaterialExtensionInterface ( )

inline

Destructor.

Definition at line 71 of file structuralnonlocalmaterialext.h.

Member Function Documentation

◆ updateBeforeNonlocAverage()

virtual void oofem::StructuralNonlocalMaterialExtensionInterface::updateBeforeNonlocAverage	(	const FloatArray &	strainVector,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

pure virtual

Declares the service updating local variables in given integration points, which take part in nonlocal average process. Because value of single integration point influences nonlocal variables in several near integration points, it is suitable to compute these variables only once. These should be stored in integration point associated statuses. The implementation is left on derived classes. Provide material local strain increment - as is provided to computeRealStresVector. This allows to update internal vars to be averaged to new state

Parameters

strainVector	Total strain vector in given integration point.
gp	Integration point to update.
tStep	Solution step indicating time of update.

Implemented in oofem::FRCFCMNL, oofem::IDNLMaterial, oofem::MazarsNLMaterial, oofem::MDM, oofem::MisesMatNl, oofem::RankineMatNl, oofem::RCSDNLMaterial, oofem::TrabBoneNL3D, oofem::TrabBoneNL, and oofem::TrabBoneNLEmbed.

Referenced by oofem::StructuralElement::updateBeforeNonlocalAverage().

The documentation for this class was generated from the following file:

structuralnonlocalmaterialext.h