#include <libeam2d.h>

Inheritance diagram for oofem::LIBeam2d:

Collaboration diagram for oofem::LIBeam2d:

Public Member Functions
	LIBeam2d (int n, Domain *aDomain)
virtual	~LIBeam2d ()
FEInterpolation *	giveInterpolation () const override
void	computeLumpedMassMatrix (FloatMatrix &answer, TimeStep *tStep) override
void	computeMassMatrix (FloatMatrix &answer, TimeStep *tStep) override
void	computeStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep) override
bool	computeGtoLRotationMatrix (FloatMatrix &answer) override
void	computeStrainVectorInLayer (FloatArray &answer, const FloatArray &masterGpStrain, GaussPoint masterGp, GaussPoint slaveGp, TimeStep *tStep) override
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
int	computeGlobalCoordinates (FloatArray &answer, const FloatArray &lcoords) override
Interface *	giveInterface (InterfaceType it) override
int	computeNumberOfDofs () override
void	giveDofManDofIDMask (int inode, IntArray &) const override
double	computeVolumeAround (GaussPoint *gp) override
Element_Geometry_Type	giveGeometryType () const override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir, int priority) override
void	initializeFinish () override
MaterialMode	giveMaterialMode () override
Public Member Functions inherited from oofem::StructuralElement
	StructuralElement (int n, Domain *d)
virtual	~StructuralElement ()
	Destructor.
void	giveCharacteristicMatrix (FloatMatrix &answer, CharType, TimeStep *tStep) override
void	giveCharacteristicVector (FloatArray &answer, CharType type, ValueModeType mode, TimeStep *tStep) override
virtual void	computeConsistentMassMatrix (FloatMatrix &answer, TimeStep tStep, double &mass, const double ipDensity=NULL)
virtual void	giveMassMtrxIntegrationgMask (IntArray &answer)
void	computeStiffnessMatrix_withIRulesAsSubcells (FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep)
virtual void	computeInitialStressMatrix (FloatMatrix &answer, TimeStep *tStep)
virtual void	computeLumpedInitialStressMatrix (FloatMatrix &answer, TimeStep *tStep)
void	computeField (ValueModeType mode, TimeStep *tStep, const FloatArray &lcoords, FloatArray &answer) override
virtual void	giveInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord=0)
virtual void	giveInternalForcesVector_withIRulesAsSubcells (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord=0)
virtual void	computeStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
virtual void	computeResultingIPTemperatureAt (FloatArray &answer, TimeStep tStep, GaussPoint gp, ValueModeType mode)
virtual void	computeResultingIPEigenstrainAt (FloatArray &answer, TimeStep tStep, GaussPoint gp, ValueModeType mode)
void	updateBeforeNonlocalAverage (TimeStep *tStep) override
virtual void	giveNonlocalLocationArray (IntArray &locationArray, const UnknownNumberingScheme &us)
virtual void	addNonlocalStiffnessContributions (SparseMtrx &dest, const UnknownNumberingScheme &s, TimeStep *tStep)
int	adaptiveUpdate (TimeStep *tStep) override
void	updateInternalState (TimeStep *tStep) override
void	updateYourself (TimeStep *tStep) override
int	checkConsistency () override
void	giveInputRecord (DynamicInputRecord &input) override
const char *	giveClassName () const override
int	giveInternalStateAtNode (FloatArray &answer, InternalStateType type, InternalStateMode mode, int node, TimeStep *tStep) override
void	showSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep) override
	Shows sparse structure.
void	showExtendedSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep) override
	Shows extended sparse structure (for example, due to nonlocal interactions for tangent stiffness).
void	computeLoadVector (FloatArray &answer, BodyLoad load, CharType type, ValueModeType mode, TimeStep tStep) override
void	computeBoundarySurfaceLoadVector (FloatArray &answer, BoundaryLoad load, int boundary, CharType type, ValueModeType mode, TimeStep tStep, bool global=true) override
void	computeBoundaryEdgeLoadVector (FloatArray &answer, BoundaryLoad load, int boundary, CharType type, ValueModeType mode, TimeStep tStep, bool global=true) override
virtual void	computeEdgeNMatrix (FloatMatrix &answer, int boundaryID, const FloatArray &lcoords)
	computes edge interpolation matrix
virtual void	computeSurfaceNMatrix (FloatMatrix &answer, int boundaryID, const FloatArray &lcoords)
StructuralCrossSection *	giveStructuralCrossSection ()
	Helper function which returns the structural cross-section for the element.
virtual void	createMaterialStatus ()
Public Member Functions inherited from oofem::Element
	Element (int n, Domain *aDomain)
	Element (const Element &src)=delete
Element &	operator= (const Element &src)=delete
virtual	~Element ()
	Virtual destructor.
void	giveLocationArray (IntArray &locationArray, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const
void	giveLocationArray (IntArray &locationArray, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const
virtual void	giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)
virtual void	giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)
virtual int	giveNumberOfDofs ()
virtual int	giveNumberOfInternalDofManagers () const
virtual DofManager *	giveInternalDofManager (int i) const
virtual void	setInternalDofManager (int num, std::unique_ptr< DofManager > dm)
virtual double	giveCharacteristicValue (CharType type, TimeStep *tStep)
virtual void	computeTangentFromSurfaceLoad (FloatMatrix &answer, BoundaryLoad load, int boundary, MatResponseMode rmode, TimeStep tStep)
virtual void	computeTangentFromEdgeLoad (FloatMatrix &answer, BoundaryLoad load, int boundary, MatResponseMode rmode, TimeStep tStep)
const IntArray &	giveBodyLoadList () const
const IntArray &	giveBoundaryLoadList () const
void	computeVectorOf (ValueModeType u, TimeStep *tStep, FloatArray &answer)
void	computeVectorOf (const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
void	computeBoundaryVectorOf (const IntArray &bNodes, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
void	computeVectorOf (PrimaryField &field, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
void	computeVectorOfPrescribed (ValueModeType u, TimeStep *tStep, FloatArray &answer)
void	computeVectorOfPrescribed (const IntArray &dofIDMask, ValueModeType type, TimeStep *tStep, FloatArray &answer)
virtual int	computeNumberOfGlobalDofs ()
int	computeNumberOfPrimaryMasterDofs ()
virtual bool	giveRotationMatrix (FloatMatrix &answer)
virtual bool	computeDofTransformationMatrix (FloatMatrix &answer, const IntArray &nodes, bool includeInternal)
virtual void	giveInternalDofManDofIDMask (int inode, IntArray &answer) const
virtual void	giveElementDofIDMask (IntArray &answer) const
virtual double	computeVolumeAreaOrLength ()
	Computes the volume, area or length of the element depending on its spatial dimension.
double	computeMeanSize ()
virtual double	computeVolume ()
virtual double	computeArea ()
virtual IntArray	giveBoundaryEdgeNodes (int boundary, bool includeHierarchical=false) const
virtual IntArray	giveBoundarySurfaceNodes (int boundary, bool includeHierarchical=false) const
virtual IntArray	giveBoundaryNodes (int boundary) const
virtual std::unique_ptr< IntegrationRule >	giveBoundaryEdgeIntegrationRule (int order, int boundary)
virtual std::unique_ptr< IntegrationRule >	giveBoundarySurfaceIntegrationRule (int order, int boundary)
int	giveDofManagerNumber (int i) const
const IntArray &	giveDofManArray () const
void	addDofManager (DofManager *dMan)
DofManager *	giveDofManager (int i) const
Node *	giveNode (int i) const
virtual ElementSide *	giveSide (int i) const
virtual FEInterpolation *	giveInterpolation (DofIDItem id) const
virtual const FEInterpolation *	getGeometryInterpolation () const
virtual Material *	giveMaterial ()
int	giveMaterialNumber () const
CrossSection *	giveCrossSection ()
int	getActivityTimeFunctionNumber ()
void	setActivityTimeFunctionNumber (int funcIndx)
void	setMaterial (int matIndx)
virtual void	setCrossSection (int csIndx)
virtual int	giveNumberOfDofManagers () const
void	setNumberOfDofManagers (int i)
	Sets number of element dof managers.
virtual int	giveNumberOfNodes () const
void	setDofManagers (const IntArray &dmans)
void	setDofManager (int id, int dm)
void	setBodyLoads (const IntArray &bodyLoads)
void	setIntegrationRules (std ::vector< std ::unique_ptr< IntegrationRule > > irlist)
virtual integrationDomain	giveIntegrationDomain () const
virtual int	giveIntegrationRuleLocalCodeNumbers (IntArray &answer, IntegrationRule &ie)
int	giveRegionNumber ()
virtual void	initializeYourself (TimeStep *timeStepWhenICApply)
virtual bool	isActivated (TimeStep *tStep)
virtual bool	isCast (TimeStep *tStep)
virtual void	initForNewStep ()
virtual Element_Geometry_Type	giveEdgeGeometryType (int id) const
	Returns the receiver edge geometry type.
virtual Element_Geometry_Type	giveSurfaceGeometryType (int id) const
	Returns the receiver surface geometry type.
virtual int	giveSpatialDimension ()
virtual int	giveNumberOfBoundarySides ()
	Returns number of boundaries (entities of element_dimension-1: points, edges, surfaces).
virtual int	giveNumberOfEdges () const
virtual int	giveNumberOfSurfaces () const
virtual int	giveDefaultIntegrationRule () const
virtual IntegrationRule *	giveDefaultIntegrationRulePtr ()
int	giveNumberOfIntegrationRules ()
virtual IntegrationRule *	giveIntegrationRule (int i)
std::vector< std ::unique_ptr< IntegrationRule > > &	giveIntegrationRulesArray ()
virtual int	testElementExtension (ElementExtension ext)
int	giveGlobalIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep)
virtual double	giveLengthInDir (const FloatArray &normalToCrackPlane)
virtual double	giveCharacteristicLength (const FloatArray &normalToCrackPlane)
double	giveCharacteristicLengthForPlaneElements (const FloatArray &normalToCrackPlane)
double	giveCharacteristicLengthForAxisymmElements (const FloatArray &normalToCrackPlane)
virtual double	giveCharacteristicSize (GaussPoint *gp, FloatArray &normalToCrackPlane, ElementCharSizeMethod method)
virtual double	giveParentElSize () const
virtual bool	computeLocalCoordinates (FloatArray &answer, const FloatArray &gcoords)
virtual int	giveLocalCoordinateSystem (FloatMatrix &answer)
virtual void	giveLocalCoordinateSystemVector (InternalStateType isttype, FloatArray &answer)
virtual void	computeMidPlaneNormal (FloatArray &answer, const GaussPoint *gp)
virtual int	adaptiveMap (Domain oldd, TimeStep tStep)
virtual int	mapStateVariables (Domain &iOldDom, const TimeStep &iTStep)
virtual int	adaptiveFinish (TimeStep *tStep)
void	updateLocalNumbering (EntityRenumberingFunctor &f) override
template<class T>
void	ipEvaluator (T src, void(T ::f)(GaussPoint *gp))
	Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f.
template<class T, class S>
void	ipEvaluator (T src, void(T ::f)(GaussPoint *, S &), S &_val)
	Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f as well as additional array.
virtual void	drawYourself (oofegGraphicContext &gc, TimeStep *tStep)
virtual void	drawAnnotation (oofegGraphicContext &gc, TimeStep *tStep)
virtual void	drawRawGeometry (oofegGraphicContext &gc, TimeStep *tStep)
virtual void	drawDeformedGeometry (oofegGraphicContext &gc, TimeStep *tStep, UnknownType)
virtual void	drawScalar (oofegGraphicContext &gc, TimeStep *tStep)
virtual void	drawSpecial (oofegGraphicContext &gc, TimeStep *tStep)
virtual void	giveLocalIntVarMaxMin (oofegGraphicContext &gc, TimeStep *tStep, double &emin, double &emax)
virtual int	giveInternalStateAtSide (FloatArray &answer, InternalStateType type, InternalStateMode mode, int side, TimeStep *tStep)
int	giveLabel () const
int	giveGlobalNumber () const
void	setGlobalNumber (int num)
elementParallelMode	giveParallelMode () const
void	setParallelMode (elementParallelMode _mode)
	Sets parallel mode of element.
virtual elementParallelMode	giveKnotSpanParallelMode (int) const
int	packUnknowns (DataStream &buff, TimeStep *tStep)
int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep)
int	estimatePackSize (DataStream &buff)
const IntArray *	givePartitionList () const
void	setPartitionList (IntArray &pl)
virtual double	predictRelativeComputationalCost ()
virtual double	giveRelativeSelfComputationalCost ()
virtual double	predictRelativeRedistributionCost ()
IntArray *	giveBodyLoadArray ()
	Returns array containing load numbers of loads acting on element.
IntArray *	giveBoundaryLoadArray ()
	Returns array containing load numbers of boundary loads acting on element.
void	postInitialize () override
	Performs post initialization steps.
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
void	printOutputAt (FILE file, TimeStep tStep) override
virtual const IntArray	giveLocation ()
virtual void	recalculateCoordinates (int nodeNumber, FloatArray &coords)
void	setSharedEdgeID (int iedge, int globalID)
void	setSharedSurfaceID (int isurf, int globalID)
const IntArray *	giveSharedEdgeIDs () const
const IntArray *	giveSharedSurfaceIDs () const
Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
virtual	~FEMComponent ()=default
	Virtual destructor.
Domain *	giveDomain () const
virtual void	setDomain (Domain *d)
int	giveNumber () const
void	setNumber (int num)
virtual void	initializeFrom (InputRecord &ir)
virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging.
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).
Public Member Functions inherited from oofem::LayeredCrossSectionInterface
	LayeredCrossSectionInterface ()
Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor.
virtual	~Interface ()

Public Attributes
double	pitch
double	length
bool	xz = true
bool	xy = false

Protected Member Functions
void	giveEdgeDofMapping (IntArray &answer, int) const override
double	computeEdgeVolumeAround (GaussPoint *, int) override
int	computeLoadLEToLRotationMatrix (FloatMatrix &, int, GaussPoint *) override
int	computeLoadGToLRotationMtrx (FloatMatrix &answer) override
void	computeBodyLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode) override
void	computeBmatrixAt (GaussPoint *, FloatMatrix &, int=1, int=ALL_STRAINS) override
void	computeNmatrixAt (const FloatArray &iLocCoord, FloatMatrix &) override
void	computeGaussPoints () override
void	computeConstitutiveMatrixAt (FloatMatrix &answer, MatResponseMode rMode, GaussPoint gp, TimeStep tStep) override
void	computeStressVector (FloatArray &answer, const FloatArray &strain, GaussPoint gp, TimeStep tStep) override
double	computeLength () override
double	givePitch ()
virtual void	computePointLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode, bool global=true)
virtual void	giveSurfaceDofMapping (IntArray &answer, int iSurf) const
virtual double	computeSurfaceVolumeAround (GaussPoint *gp, int iSurf)
virtual int	computeLoadLSToLRotationMatrix (FloatMatrix &answer, int iSurf, GaussPoint *gp)
virtual int	giveNumberOfIPForMassMtrxIntegration ()
void	condense (FloatMatrix stiff, FloatMatrix mass, FloatArray load, IntArray what)
virtual void	setupIRForMassMtrxIntegration (IntegrationRule &iRule)

Static Protected Attributes
static FEI2dLineLin	interpolationXZ
	Interpolation.
static FEI2dLineLin	interpolationXY
static ParamKey	IPK_LIBeam2d_XZ
static ParamKey	IPK_LIBeam2d_XY

Additional Inherited Members
Static Public Attributes inherited from oofem::Element
static ParamKey	IPK_Element_mat
static ParamKey	IPK_Element_crosssect
static ParamKey	IPK_Element_nodes
static ParamKey	IPK_Element_bodyload
static ParamKey	IPK_Element_boundaryload
static ParamKey	IPK_Element_lcs
static ParamKey	IPK_Element_partitions
static ParamKey	IPK_Element_remote
static ParamKey	IPK_Element_activityTimeFunction
static ParamKey	IPK_Element_nip
Protected Attributes inherited from oofem::StructuralElement
std::unique_ptr< FloatArray >	initialDisplacements
	Initial displacement vector, describes the initial nodal displacements when element has been casted.
Protected Attributes inherited from oofem::Element
int	numberOfDofMans
	Number of dofmanagers.
IntArray	dofManArray
	Array containing dofmanager numbers.
int	material
	Number of associated material.
int	crossSection
	Number of associated cross section.
IntArray	bodyLoadArray
IntArray	boundaryLoadArray
std::vector< std ::unique_ptr< IntegrationRule > >	integrationRulesArray
FloatMatrix	elemLocalCS
	Transformation material matrix, used in orthotropic and anisotropic materials, global->local transformation.
int	activityTimeFunction
	Element activity time function. If defined, nonzero value indicates active receiver, zero value inactive element.
int	globalNumber
int	numberOfGaussPoints
elementParallelMode	parallel_mode
	Determines the parallel mode of the element.
IntArray	partitions
IntArray	globalEdgeIDs
IntArray	globalSurfaceIDs
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.

Detailed Description

A 2-dimensional Linear Isoparametric Mindlin theory beam element, with reduced integration.

Definition at line 53 of file libeam2d.h.

Constructor & Destructor Documentation

◆ LIBeam2d()

oofem::LIBeam2d::LIBeam2d	(	int	n,
		Domain *	aDomain )

Definition at line 61 of file libeam2d.C.

References oofem::LayeredCrossSectionInterface::LayeredCrossSectionInterface(), length, oofem::Element::numberOfDofMans, pitch, and oofem::StructuralElement::StructuralElement().

◆ ~LIBeam2d()

virtual oofem::LIBeam2d::~LIBeam2d ( )

inlinevirtual

Definition at line 69 of file libeam2d.h.

Member Function Documentation

◆ computeBmatrixAt()

void oofem::LIBeam2d::computeBmatrixAt	(	GaussPoint *	gp,
		FloatMatrix &	answer,
		int	lowerIndx = 1,
		int	upperIndx = ALL_STRAINS )

overrideprotectedvirtual

Computes the geometrical matrix of receiver in given integration point. The product of this matrix (assembled at given integration point) and element displacement vector is element strain vector. If lowerIndx and upperIndx parameters are specified, answer is formed only for strains within this interval. This will affects the size of answer.

Parameters

gp	Integration point for which answer is computed.
answer	Geometric matrix of receiver.
lowerIndx	If specified, answer is formed only for strain with index equal and greater than lowerIndx. This parameter has default value 1 (answer is formed from first strain).
upperIndx	If specified, answer is formed only for strain with index less and equal than upperIndx. This parameter has default value ALL_STRAINS (answer is formed for all strains).

Implements oofem::StructuralElement.

Definition at line 84 of file libeam2d.C.

References oofem::FloatMatrix::at(), computeLength(), oofem::GaussPoint::giveNaturalCoordinate(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeBodyLoadVectorAt()

void oofem::LIBeam2d::computeBodyLoadVectorAt	(	FloatArray &	answer,
		Load *	load,
		TimeStep *	tStep,
		ValueModeType	mode )

overrideprotectedvirtual

Computes the load vector due to body load acting on receiver, at given time step. Default implementation computes body load vector numerically as \( l=\int_V N^{\mathrm{T}} f \rho\;\mathrm{d}V \) using default integration rule. Result is transformed to global c.s.

Parameters

answer	Computed load vector due to body load
load	Body load which contribution is computed.
tStep	Time step.
mode	determines the response mode

Reimplemented from oofem::StructuralElement.

Definition at line 395 of file libeam2d.C.

References oofem::CS_Area, oofem::Element::giveCrossSection(), and oofem::FloatArray::times().

◆ computeConstitutiveMatrixAt()

void oofem::LIBeam2d::computeConstitutiveMatrixAt	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		GaussPoint *	gp,
		TimeStep *	tStep )

overrideprotectedvirtual

Computes constitutive matrix of receiver. Default implementation uses element cross section giveCharMaterialStiffnessMatrix service.

Parameters

answer	Constitutive matrix.
rMode	Material response mode of answer.
gp	Integration point for which constitutive matrix is computed.
tStep	Time step.

Implements oofem::StructuralElement.

Definition at line 127 of file libeam2d.C.

References oofem::StructuralElement::giveStructuralCrossSection().

◆ computeEdgeVolumeAround()

double oofem::LIBeam2d::computeEdgeVolumeAround	(	GaussPoint *	gp,
		int	iEdge )

overrideprotectedvirtual

Computes volume related to integration point on local edge.

Parameters

gp	edge integration point
iEdge	edge number

Reimplemented from oofem::StructuralElement.

Definition at line 383 of file libeam2d.C.

References computeLength(), oofem::GaussPoint::giveWeight(), and OOFEM_ERROR.

◆ computeGaussPoints()

void oofem::LIBeam2d::computeGaussPoints ( )

overrideprotectedvirtual

Initializes the array of integration rules member variable. Element can have multiple integration rules for different tasks. For example structural element family class uses this feature to implement transparent support for reduced and selective integration of some strain components. Must be defined by terminator classes.

See also: IntegrationRule

Reimplemented from oofem::Element.

Definition at line 115 of file libeam2d.C.

References oofem::Element::giveCrossSection(), and oofem::Element::integrationRulesArray.

◆ computeGlobalCoordinates()

int oofem::LIBeam2d::computeGlobalCoordinates	(	FloatArray &	answer,
		const FloatArray &	lcoords )

overridevirtual

Computes the global coordinates from given element's local coordinates.

Parameters

answer	Requested global coordinates.
lcoords	Local coordinates.

Returns: Nonzero if successful, zero otherwise.

Reimplemented from oofem::Element.

Definition at line 141 of file libeam2d.C.

References oofem::FloatArray::at(), oofem::Element::giveNode(), oofem::FloatArray::resize(), and xy.

◆ computeGtoLRotationMatrix()

bool oofem::LIBeam2d::computeGtoLRotationMatrix ( FloatMatrix & answer )

overridevirtual

Returns transformation matrix from global c.s. to local element c.s., i.e. \( r_l =T r_g \). If no transformation is necessary then answer is empty matrix and zero value is returned.

Parameters

answer Computed rotation matrix.

Returns: Nonzero if transformation is necessary, zero otherwise.

Reimplemented from oofem::Element.

Definition at line 211 of file libeam2d.C.

References oofem::FloatMatrix::at(), givePitch(), pitch, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeLength()

double oofem::LIBeam2d::computeLength ( )

overrideprotectedvirtual

Computes the length (zero for all but 1D geometries)

Returns: Element length.

Reimplemented from oofem::Element.

Definition at line 294 of file libeam2d.C.

References oofem::DofManager::giveCoordinate(), oofem::Element::giveNode(), length, and xy.

Referenced by computeBmatrixAt(), computeEdgeVolumeAround(), computeLumpedMassMatrix(), and computeVolumeAround().

◆ computeLoadGToLRotationMtrx()

int oofem::LIBeam2d::computeLoadGToLRotationMtrx ( FloatMatrix & answer )

overrideprotectedvirtual

Returns transformation matrix from global coordinate system to local element coordinate system for element load vector components. If no transformation is necessary, answer is empty matrix (default);

Parameters

answer Transformation matrix.

Returns: Nonzero if transformation matrix is not empty matrix, zero otherwise.

Reimplemented from oofem::StructuralElement.

Definition at line 404 of file libeam2d.C.

References oofem::FloatMatrix::at(), givePitch(), pitch, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeLoadLEToLRotationMatrix()

int oofem::LIBeam2d::computeLoadLEToLRotationMatrix	(	FloatMatrix &	answer,
		int	iEdge,
		GaussPoint *	gp )

overrideprotectedvirtual

Returns transformation matrix from local edge c.s to element local coordinate system of load vector components. Necessary, because integration must be done in local coordinate system of entity (edge or surface). If no transformation is necessary, answer is empty matrix (default);

Parameters

answer	Computed rotation matrix.
iEdge	Edge number.
gp	Integration point (point, where transformation is computed, useful for curved edges).

Returns: Nonzero if transformation matrix is not empty matrix, zero otherwise.

Reimplemented from oofem::StructuralElement.

Definition at line 433 of file libeam2d.C.

References oofem::FloatMatrix::clear().

◆ computeLumpedMassMatrix()

void oofem::LIBeam2d::computeLumpedMassMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep )

overridevirtual

Computes lumped mass matrix of receiver. Default implementation returns lumped consistent mass matrix. Then returns lumped mass transformed into nodal coordinate system. The lumping procedure zeroes all off-diagonal members and zeroes also all diagonal members corresponding to non-displacement DOFs. Such diagonal matrix is then rescaled, to preserve the element mass. Requires the computeNmatrixAt and giveMassMtrxIntegrationgMask services to be implemented.

Parameters

answer	Lumped mass matrix.
tStep	Time step.

Reimplemented from oofem::StructuralElement.

Definition at line 162 of file libeam2d.C.

References oofem::FloatMatrix::at(), computeLength(), oofem::CS_Area, oofem::Element::giveCrossSection(), oofem::StructuralElement::giveStructuralCrossSection(), oofem::Element::integrationRulesArray, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by computeMassMatrix().

◆ computeMassMatrix()

void oofem::LIBeam2d::computeMassMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep )

inlineoverridevirtual

Computes mass matrix of receiver. Default implementation returns consistent mass matrix and uses numerical integration. Returns result of this->computeConsistentMassMatrix service, transformed into nodal coordinate system. Requires the computeNmatrixAt and giveMassMtrxIntegrationgMask services to be implemented.

Parameters

answer	Mass matrix.
tStep	Time step.

Reimplemented from oofem::StructuralElement.

Definition at line 74 of file libeam2d.h.

References computeLumpedMassMatrix().

◆ computeNmatrixAt()

void oofem::LIBeam2d::computeNmatrixAt	(	const FloatArray &	iLocCoord,
		FloatMatrix &	answer )

overrideprotectedvirtual

Computes interpolation matrix for element unknowns. The order and meaning of unknowns is element dependent.

Parameters

iLocCoord	Local coordinates.
answer	Interpolation matrix evaluated at gp.

Reimplemented from oofem::StructuralElement.

Definition at line 179 of file libeam2d.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeNumberOfDofs()

int oofem::LIBeam2d::computeNumberOfDofs ( )

inlineoverridevirtual

Computes or simply returns total number of element's local DOFs. Must be defined by particular element.

Returns: Number of local DOFs of element.

Reimplemented from oofem::Element.

Definition at line 88 of file libeam2d.h.

◆ computeStiffnessMatrix()

void oofem::LIBeam2d::computeStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep )

overridevirtual

Computes numerically stiffness matrix of receiver. Default implementation computes element stiffness using \( K=\int_v B^{\mathrm{T}} D B \mathrm{d}V \) formulae, where \( B \) is element geometric matrix and \( D \) is material stiffness matrix. No geometrical nonlinearity is taken into account. NUmerical integration procedure uses integrationRulesArray for numerical integration. Support for reduced or selected integration is implemented. The individual integration rules are assumed to correspond to different terms from which the overall matrix is assembled.

If there is one integration rule, the full integration of all coefficients is performed. Otherwise, integration is performed using following rules. Each integration rule can specify start and end strain index of strain vector components for which is valid. It is necessary to ensure that these start and end indexes, dividing geometrical matrix into blocks, are not overlapping and that each strain component is included.

Then stiffness matrix is obtained as summation of integrals \( I_{ij}=\int_v B^{\mathrm{T}}_i D_{ij} B_j \mathrm{d}V \) where \( B_i \) is i-th block of geometrical matrix and \( D_{ij} \) is corresponding constitutive sub-matrix. The geometrical matrix is obtained using computeBmatrixAt service and the constitutive matrix is obtained using computeConstitutiveMatrixAt service. The \( I_{ij} \) integral is evaluated using such integration rule, which is valid for i-th or j-th block and has smaller number of integration points.

For higher numerical performance, only one half of stiffness matrix is computed and answer is then symmetrized. Therefore, if element matrix will be generally nonsymmetric, one must specialize this method. Finally, the result is transformed into global coordinate system (or nodal coordinate system, if it is defined).

Parameters

answer	Computed stiffness matrix (symmetric).
rMode	Response mode.
tStep	Time step.

Reimplemented from oofem::StructuralElement.

Definition at line 202 of file libeam2d.C.

◆ computeStrainVectorInLayer()

void oofem::LIBeam2d::computeStrainVectorInLayer	(	FloatArray &	answer,
		const FloatArray &	masterGpStrain,
		GaussPoint *	masterGp,
		GaussPoint *	slaveGp,
		TimeStep *	tStep )

overridevirtual

Computes full 3D strain vector in element layer. This function is necessary if layered cross section is specified..

Parameters

answer	Full layer strain vector.
masterGpStrain	Generalized strain at master gauss point.
masterGp	Element integration point.
slaveGp	Slave integration point representing particular layer.
tStep	Time step.

Implements oofem::LayeredCrossSectionInterface.

Definition at line 247 of file libeam2d.C.

References oofem::FloatArray::at(), oofem::CS_BottomZCoord, oofem::CS_TopZCoord, oofem::Element::giveCrossSection(), oofem::GaussPoint::giveNaturalCoordinate(), and oofem::FloatArray::resize().

◆ computeStressVector()

void oofem::LIBeam2d::computeStressVector	(	FloatArray &	answer,
		const FloatArray &	strain,
		GaussPoint *	gp,
		TimeStep *	tStep )

overrideprotectedvirtual

Computes the stress vector of receiver at given integration point, at time step tStep. The nature of these stresses depends on the element's type.

Parameters

answer	Stress vector.
strain	Strain vector.
gp	Integration point.
tStep	Time step.

Implements oofem::StructuralElement.

Definition at line 134 of file libeam2d.C.

References oofem::StructuralElement::giveStructuralCrossSection().

◆ computeVolumeAround()

double oofem::LIBeam2d::computeVolumeAround ( GaussPoint * gp )

overridevirtual

Returns volume related to given integration point. Used typically in subroutines, that perform integration over element volume. Should be implemented by particular elements.

See also: GaussPoint

Parameters

gp	Integration point for which volume is computed.

Returns: Volume for integration point.

Reimplemented from oofem::Element.

Definition at line 237 of file libeam2d.C.

References computeLength(), and oofem::GaussPoint::giveWeight().

◆ giveClassName()

const char * oofem::LIBeam2d::giveClassName ( ) const

inlineoverridevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::Element.

Definition at line 96 of file libeam2d.h.

◆ giveDofManDofIDMask()

void oofem::LIBeam2d::giveDofManDofIDMask	(	int	inode,
		IntArray &	answer ) const

overridevirtual

Returns dofmanager dof mask for node. This mask defines the dofs which are used by element in node. Mask influences the code number ordering for particular node. Code numbers are ordered according to node order and dofs belonging to particular node are ordered according to this mask. If element requests dofs using node mask which are not in node then error is generated. This masking allows node to be shared by different elements with different dofs in same node. Elements local code numbers are extracted from node using this mask. Must be defined by particular element.

Parameters

inode	Mask is computed for local dofmanager with inode number.
answer	Mask for node.

Reimplemented from oofem::Element.

Definition at line 283 of file libeam2d.C.

References xy.

◆ giveEdgeDofMapping()

void oofem::LIBeam2d::giveEdgeDofMapping	(	IntArray &	answer,
		int	iEdge ) const

overrideprotectedvirtual

Assembles edge dof mapping mask, which provides mapping between edge local DOFs and "global" element DOFs. Mask can be imagined as local edge code numbers used to localize local edge DOFs to element DOFs.

Parameters

answer	Edge DOF mapping.
iEdge	Edge number.

Reimplemented from oofem::StructuralElement.

Definition at line 361 of file libeam2d.C.

References oofem::IntArray::at(), OOFEM_ERROR, and oofem::IntArray::resize().

◆ giveGeometryType()

Element_Geometry_Type oofem::LIBeam2d::giveGeometryType ( ) const

inlineoverridevirtual

Returns the element geometry type. This information is assumed to be of general interest, but it is required only for some specialized tasks.

Returns: Geometry type of element.

Implements oofem::Element.

Definition at line 91 of file libeam2d.h.

◆ giveInputRecordName()

const char * oofem::LIBeam2d::giveInputRecordName ( ) const

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 95 of file libeam2d.h.

References _IFT_LIBeam2d_Name.

◆ giveInterface()

Interface * oofem::LIBeam2d::giveInterface ( InterfaceType t )

overridevirtual

Interface requesting service.

See also: InterfaceType

Returns: Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Definition at line 73 of file libeam2d.C.

References oofem::LayeredCrossSectionInterface::LayeredCrossSectionInterface(), and oofem::LayeredCrossSectionInterfaceType.

◆ giveInterpolation()

FEInterpolation * oofem::LIBeam2d::giveInterpolation ( ) const

overridevirtual

Returns: Interpolation of the element geometry, or NULL if none exist.

Reimplemented from oofem::Element.

Definition at line 69 of file libeam2d.C.

References interpolationXY, interpolationXZ, and xy.

◆ giveIPValue()

int oofem::LIBeam2d::giveIPValue	(	FloatArray &	answer,
		GaussPoint *	gp,
		InternalStateType	type,
		TimeStep *	tStep )

overridevirtual

Returns the integration point corresponding value in full form.

Parameters

answer	Contain corresponding integration point value, zero sized if not available.
gp	Integration point to check.
type	Determines the type of internal variable.
tStep	Time step.

Returns: Nonzero if o.k, zero otherwise.

Todo: Which "error type" should be used? Why are there several? I don't see the point of this enum when there could be different function calls just as well (and different IST values)

Reimplemented from oofem::Element.

Definition at line 268 of file libeam2d.C.

References oofem::GaussPoint::giveMaterialStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), and oofem::StructuralMaterialStatus::giveStressVector().

◆ giveMaterialMode()

MaterialMode oofem::LIBeam2d::giveMaterialMode ( )

inlineoverridevirtual

Returns material mode for receiver integration points. Should be specialized.

Returns: Material mode of element.

Reimplemented from oofem::Element.

Definition at line 100 of file libeam2d.h.

◆ givePitch()

double oofem::LIBeam2d::givePitch ( )

protected

Definition at line 317 of file libeam2d.C.

References oofem::DofManager::giveCoordinate(), oofem::Element::giveNode(), pitch, and xy.

Referenced by computeGtoLRotationMatrix(), and computeLoadGToLRotationMtrx().

◆ initializeFinish()

void oofem::LIBeam2d::initializeFinish ( )

overridevirtual

Finishes the initialization. Note that initializeFrom may be called multiple times. The initializeFinish typycally performs the input parameter checking (if compulsory parameters set, etc.) After initializeFinish, DOFs and other components may be created.

Reimplemented from oofem::Element.

Definition at line 352 of file libeam2d.C.

References xy, and xz.

◆ initializeFrom()

void oofem::LIBeam2d::initializeFrom	(	InputRecord &	ir,
		int	priority )

overridevirtual

Reimplemented from oofem::Element.

Definition at line 343 of file libeam2d.C.

References oofem::FEMComponent::domain, IPK_LIBeam2d_XY, IPK_LIBeam2d_XZ, oofem::FEMComponent::number, PM_CHECK_FLAG_AND_REPORT, xy, and xz.

Member Data Documentation

◆ interpolationXY

FEI2dLineLin oofem::LIBeam2d::interpolationXY

staticprotected

Definition at line 58 of file libeam2d.h.

Referenced by giveInterpolation().

◆ interpolationXZ

FEI2dLineLin oofem::LIBeam2d::interpolationXZ

staticprotected

Interpolation.

Definition at line 57 of file libeam2d.h.

Referenced by giveInterpolation().

◆ IPK_LIBeam2d_XY

ParamKey oofem::LIBeam2d::IPK_LIBeam2d_XY

staticprotected

Definition at line 61 of file libeam2d.h.

Referenced by initializeFrom().

◆ IPK_LIBeam2d_XZ

ParamKey oofem::LIBeam2d::IPK_LIBeam2d_XZ

staticprotected

Definition at line 60 of file libeam2d.h.

Referenced by initializeFrom().

◆ length

double oofem::LIBeam2d::length

Definition at line 64 of file libeam2d.h.

Referenced by computeLength(), and LIBeam2d().

◆ pitch

double oofem::LIBeam2d::pitch

Definition at line 64 of file libeam2d.h.

Referenced by computeGtoLRotationMatrix(), computeLoadGToLRotationMtrx(), givePitch(), and LIBeam2d().

◆ xy

bool oofem::LIBeam2d::xy = false

Definition at line 66 of file libeam2d.h.

Referenced by computeGlobalCoordinates(), computeLength(), giveDofManDofIDMask(), giveInterpolation(), givePitch(), initializeFinish(), and initializeFrom().

◆ xz

bool oofem::LIBeam2d::xz = true

Definition at line 65 of file libeam2d.h.

Referenced by initializeFinish(), and initializeFrom().

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

Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LIBeam2d()

◆ ~LIBeam2d()

Member Function Documentation

◆ computeBmatrixAt()

◆ computeBodyLoadVectorAt()

◆ computeConstitutiveMatrixAt()

◆ computeEdgeVolumeAround()

◆ computeGaussPoints()

◆ computeGlobalCoordinates()

◆ computeGtoLRotationMatrix()

◆ computeLength()

◆ computeLoadGToLRotationMtrx()

◆ computeLoadLEToLRotationMatrix()

◆ computeLumpedMassMatrix()

◆ computeMassMatrix()

◆ computeNmatrixAt()

◆ computeNumberOfDofs()

◆ computeStiffnessMatrix()

◆ computeStrainVectorInLayer()

◆ computeStressVector()

◆ computeVolumeAround()

◆ giveClassName()

◆ giveDofManDofIDMask()

◆ giveEdgeDofMapping()

◆ giveGeometryType()

◆ giveInputRecordName()

◆ giveInterface()

◆ giveInterpolation()

◆ giveIPValue()

◆ giveMaterialMode()

◆ givePitch()

◆ initializeFinish()

◆ initializeFrom()

Member Data Documentation

◆ interpolationXY

◆ interpolationXZ

◆ IPK_LIBeam2d_XY

◆ IPK_LIBeam2d_XZ

◆ length

◆ pitch

◆ xy

◆ xz