Class implementing cross section model in finite element problem. More...

#include <variablecrosssection.h>

Inheritance diagram for oofem::VariableCrossSection:

Collaboration diagram for oofem::VariableCrossSection:

Public Member Functions
	VariableCrossSection (int n, Domain *d)
	Constructor. More...

virtual IRResultType	initializeFrom (InputRecord *ir)
	Initializes receiver acording to object description stored in input record. More...

virtual void	giveInputRecord (DynamicInputRecord &input)
	Setups the input record string of receiver. More...

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

virtual double	give (CrossSectionProperty a, GaussPoint *gp)
	Returns the value of cross section property at given point. More...

virtual double	give (CrossSectionProperty a, const FloatArray &coords, Element *elem, bool local)
	Returns the value of cross section property at given point (belonging to given element). More...

Public Member Functions inherited from oofem::SimpleCrossSection
	SimpleCrossSection (int n, Domain *d)
	Constructor. More...

virtual void	giveRealStress_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveRealStress_3dDegeneratedShell (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveRealStress_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveRealStress_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveRealStress_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveRealStress_Warping (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)

virtual void	giveStiffnessMatrix_3d (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing the stiffness matrix. More...

virtual void	giveStiffnessMatrix_PlaneStress (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

virtual void	giveStiffnessMatrix_PlaneStrain (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

virtual void	giveStiffnessMatrix_1d (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

virtual void	giveGeneralizedStress_Beam2d (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)
	Computes the generalized stress vector for given strain and integration point. More...

virtual void	giveGeneralizedStress_Beam3d (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

virtual void	giveGeneralizedStress_Plate (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

virtual void	giveGeneralizedStress_Shell (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

virtual void	giveGeneralizedStress_MembraneRot (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

virtual void	giveGeneralizedStress_PlateSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

virtual void	giveCharMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the stiffness matrix of receiver in given integration point, respecting its history. More...

virtual bool	isCharacteristicMtrxSymmetric (MatResponseMode mode)
	Check for symmetry of stiffness matrix. More...

virtual void	give3dDegeneratedShellStiffMtrx (FloatMatrix &answer, MatResponseMode rMode, GaussPoint gp, TimeStep tStep)
	Method for computing 3d shell stiffness matrix on degenerated shell elements. More...

virtual void	give2dBeamStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the stiffness matrix for 2d beams. More...

virtual void	give3dBeamStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the stiffness matrix for 2d beams. More...

virtual void	give2dPlateStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d plate stiffness matrix. More...

virtual void	give3dShellStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing 3d shell stiffness matrix. More...

virtual void	giveMembraneRotStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing membrane stiffness matrix with added drilling stiffness. More...

virtual void	give2dPlateSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing subsoil stiffness matrix for plates. More...

virtual void	createMaterialStatus (GaussPoint &iGP)

virtual double	give (int aProperty, GaussPoint *gp)
	Returns the value of cross section property. More...

virtual int	giveIPValue (FloatArray &answer, GaussPoint ip, InternalStateType type, TimeStep tStep)
	Returns the integration point corresponding value in Reduced form. More...

virtual Material *	giveMaterial (IntegrationPoint *ip)
	Returns the material associated with the GP. More...

int	giveMaterialNumber () const

void	setMaterialNumber (int matNum)

virtual int	checkConsistency ()
	Allows programmer to test some internal data, before computation begins. More...

virtual Interface *	giveMaterialInterface (InterfaceType t, IntegrationPoint *ip)

virtual void	giveFirstPKStresses (FloatArray &answer, GaussPoint gp, const FloatArray &reducedFIncrement, TimeStep tStep)
	Computes the First Piola-Kirchoff stress vector for a given deformation gradient and integration point. More...

virtual void	giveCauchyStresses (FloatArray &answer, GaussPoint gp, const FloatArray &reducedFIncrement, TimeStep tStep)
	Computes the Cauchy stress vector for a given increment of deformation gradient and given integration point. More...

virtual void	giveEshelbyStresses (FloatArray &answer, GaussPoint gp, const FloatArray &reducedvF, TimeStep tStep)
	Computes the Eshelby stress vector. More...

virtual void	giveStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the material stiffness matrix dPdF of receiver in a given integration point, respecting its history. More...

virtual void	giveStiffnessMatrix_dCde (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the material stiffness matrix dCde of receiver in a given integration point, respecting its history. More...

virtual void	giveTemperatureVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)

virtual int	packUnknowns (DataStream &buff, TimeStep tStep, GaussPoint gp)
	Pack all necessary data of integration point (according to element parallel_mode) into given communication buffer. More...

virtual int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep tStep, GaussPoint gp)
	Unpack and updates all necessary data of given integration point (according to element parallel_mode) into given communication buffer. More...

virtual int	estimatePackSize (DataStream &buff, GaussPoint *gp)
	Estimates the necessary pack size to hold all packed data of receiver. More...

Public Member Functions inherited from oofem::StructuralCrossSection
	StructuralCrossSection (int n, Domain *d)
	Constructor. More...

virtual	~StructuralCrossSection ()
	Destructor. More...

virtual void	give3dBeamSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Method for computing subsoil stiffness matrix for 2d beams. More...

virtual FloatArray *	imposeStressConstrainsOnGradient (GaussPoint gp, FloatArray gradientStressVector3d)
	Returns modified gradient of stress vector, which is used to bring stresses back to yield surface. More...

virtual FloatArray *	imposeStrainConstrainsOnGradient (GaussPoint gp, FloatArray gradientStressVector3d)
	Returns modified gradient of strain vector, which is used to compute plastic strain increment. More...

virtual int	testCrossSectionExtension (CrossSectExtension ext)
	Returns nonzero, if receiver implements required extension. More...

void	giveRealStresses (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Computes the real stress vector for given strain and integration point. More...

virtual void	giveGeneralizedStress_3dBeamSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &generalizedStrain, TimeStep tStep)

Public Member Functions inherited from oofem::CrossSection
	CrossSection (int n, Domain *d)
	Constructor. More...

virtual	~CrossSection ()
	Destructor. More...

int	giveSetNumber () const

virtual bool	hasProperty (CrossSectionProperty a)
	Returns true if the dictionary contains the requested property. More...

virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. More...

virtual int	setupIntegrationPoints (IntegrationRule &irule, int npoints, Element *element)
	Sets up integration rule for the given element. More...

virtual int	setupIntegrationPoints (IntegrationRule &irule, int npointsXY, int npointsZ, Element *element)
	Sets up integration rule for the given element. More...

virtual double	predictRelativeComputationalCost (GaussPoint *ip)
	Returns the weight representing relative computational cost of receiver The reference cross section is integral model in plane stress. More...

virtual double	giveRelativeSelfComputationalCost ()
	Returns the weight representing relative computational cost of receiver The reference element is integral model in plane stress. More...

virtual double	predictRelativeRedistributionCost (GaussPoint *gp)

virtual contextIOResultType	saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Stores integration point state to output stream. More...

virtual contextIOResultType	restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Reads integration point state to output stream. More...

Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
	Regular constructor, creates component with given number and belonging to given domain. More...

virtual	~FEMComponent ()
	Virtual destructor. More...

Domain *	giveDomain () const

virtual void	setDomain (Domain *d)
	Sets associated Domain. More...

int	giveNumber () const

void	setNumber (int num)
	Sets number of receiver. More...

virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
	Local renumbering support. More...

virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Stores receiver state to output stream. More...

virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Restores the receiver state previously written in stream. More...

virtual void	printOutputAt (FILE file, TimeStep tStep)
	Prints output of receiver to stream, for given time step. More...

virtual Interface *	giveInterface (InterfaceType t)
	Interface requesting service. More...

std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros). More...

Protected Member Functions
void	giveExpression (const ScalarFunction **expr, CrossSectionProperty aProperty) const

std::string	giveExpression (CrossSectionProperty aProperty)

Protected Attributes
ScalarFunction	thicknessExpr
	Expression for cross section thickness. More...

ScalarFunction	widthExpr
	Expression for cross section width. More...

ScalarFunction	areaExpr
	Expression for cross section area. More...

ScalarFunction	iyExpr
	Expression for cross section inertia moment $I_y$. More...

ScalarFunction	izExpr
	Expression for cross section inertia moment $I_z$. More...

ScalarFunction	ixExpr
	Expression for cross section torsion moment $I_x$. More...

ScalarFunction	shearAreayExpr
	Expression for cross section beam shear area $A_y$. More...

ScalarFunction	shearAreazExpr
	Expression for cross section beam shear area $A_z$. More...

ScalarFunction	drillingStiffnessExpr
	Expression for cross section beam drilling stiffness. More...

ScalarFunction	relDrillingStiffnessExpr
	Expression for cross section relative drilling stiffness. More...

ScalarFunction	drillingTypeExpr
	Expression for type of artificially added stiffness. More...

ScalarFunction	directorxExpr
	Expression for director vector component in x-axis. More...

ScalarFunction	directoryExpr
	Expression for director vector component in y-axis. More...

ScalarFunction	directorzExpr
	Expression for director vector component in z-axis. More...

bool	localFormulationFlag
	if set to true, all expressions are in element local cs, otherwise are expressed in global cs More...

Protected Attributes inherited from oofem::SimpleCrossSection
int	materialNumber

int	czMaterialNumber

Protected Attributes inherited from oofem::CrossSection
Dictionary	propertyDictionary
	Dictionary for storing cross section parameters (like dimensions). More...

int	setNumber

Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number. More...

Domain *	domain
	Link to domain object, useful for communicating with other FEM components. More...

Detailed Description

Class implementing cross section model in finite element problem.

A cross section properties are not a constant values, but they can be set as scalar functions of the spatial position in terms of x,y,z variables. example "0.1+x*0.2+y*0.0", where (x,y,z) are global (or optionally local element) coordinates. This cross section model is a integral model, so it does not perform any integration over cross-section volume.

Note: varible cross section model uses the same keywords as simple cs model. As it is derived from simple cross section class, the initializeFrom method does not calls the parent method, because the same keywords are used to read variables of different type.

Definition at line 62 of file variablecrosssection.h.

Constructor & Destructor Documentation

oofem::VariableCrossSection::VariableCrossSection	(	int	n,
		Domain *	d
	)

inline

Constructor.

Parameters

n	Cross section number.
d	Associated domain.

Definition at line 103 of file variablecrosssection.h.

Member Function Documentation

double oofem::VariableCrossSection::give	(	CrossSectionProperty	a,
		GaussPoint *	gp
	)

virtual

Returns the value of cross section property at given point.

The default implementation assumes constant properties stored in propertyDictionary.

Parameters

a	Id of requested property.
gp	Integration point

Returns: Property value.

Reimplemented from oofem::SimpleCrossSection.

Definition at line 188 of file variablecrosssection.C.

References oofem::GaussPoint::giveElement(), and oofem::GaussPoint::giveNaturalCoordinates().

double oofem::VariableCrossSection::give	(	CrossSectionProperty	a,
		const FloatArray &	coords,
		Element *	elem,
		bool	local
	)

virtual

Returns the value of cross section property at given point (belonging to given element).

the point coordinates can be specified using its local element coordinates or global coordinates (one of these two can be set to NULL) The default implementation assumes constant properties stored in propertyDictionary.

Parameters

a	Id of requested property.
coords	local or global coordinates (determined by local parameter) of point of interest
elem	reference to underlying element containing given point
gp	Integration point