#include <linedistributedspring.h>

Inheritance diagram for oofem::LineDistributedSpring:

Collaboration diagram for oofem::LineDistributedSpring:

Public Member Functions
	LineDistributedSpring (int n, Domain *d)
virtual	~LineDistributedSpring ()
FEInterpolation *	giveInterpolation () const override
FEInterpolation *	giveInterpolation (DofIDItem id) const override
MaterialMode	giveMaterialMode () override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
Element_Geometry_Type	giveGeometryType () const override
void	initializeFrom (InputRecord &ir, int priority) override
void	postInitialize () override
	Performs post initialization steps.
int	computeNumberOfDofs () override
void	giveDofManDofIDMask (int inode, IntArray &) const override
double	computeVolumeAround (GaussPoint *gp) override
void	computeLumpedMassMatrix (FloatMatrix &answer, TimeStep *tStep) override
void	computeMassMatrix (FloatMatrix &answer, TimeStep *tStep) override
void	giveInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord) override
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
Interface *	giveInterface (InterfaceType it) override
int	checkConsistency () override
void	printOutputAt (FILE File, TimeStep tStep) 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)
virtual void	computeStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep)
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_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)
virtual void	computeNmatrixAt (const FloatArray &iLocCoord, FloatMatrix &answer)
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	computeGtoLRotationMatrix (FloatMatrix &answer)
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 double	computeLength ()
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 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 int	computeGlobalCoordinates (FloatArray &answer, const FloatArray &lcoords)
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	initializeFinish () override
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) 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::ZZNodalRecoveryModelInterface
	ZZNodalRecoveryModelInterface (Element *element)
	Constructor.
virtual bool	ZZNodalRecoveryMI_computeNValProduct (FloatMatrix &answer, InternalStateType type, TimeStep *tStep)
virtual void	ZZNodalRecoveryMI_computeNNMatrix (FloatArray &answer, InternalStateType type)
Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor.
virtual	~Interface ()
Public Member Functions inherited from oofem::SPRNodalRecoveryModelInterface
	SPRNodalRecoveryModelInterface ()
	Constructor.

Protected Member Functions
void	computeGaussPoints () override
void	computeBodyLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode) override
void	computeBmatrixAt (GaussPoint *gp, FloatMatrix &answer, int=1, int=ALL_STRAINS) override
void	computeStressVector (FloatArray &answer, const FloatArray &strain, GaussPoint gp, TimeStep tStep) override
void	computeConstitutiveMatrixAt (FloatMatrix &answer, MatResponseMode rMode, GaussPoint gp, TimeStep tStep) override
void	SPRNodalRecoveryMI_giveSPRAssemblyPoints (IntArray &pap) override
void	SPRNodalRecoveryMI_giveDofMansDeterminedByPatch (IntArray &answer, int pap) override
int	SPRNodalRecoveryMI_giveNumberOfIP () override
SPRPatchType	SPRNodalRecoveryMI_givePatchType () override
virtual void	computePointLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode, bool global=true)
virtual void	giveEdgeDofMapping (IntArray &answer, int iEdge) const
virtual void	giveSurfaceDofMapping (IntArray &answer, int iSurf) const
virtual double	computeEdgeVolumeAround (GaussPoint *gp, int iEdge)
virtual double	computeSurfaceVolumeAround (GaussPoint *gp, int iSurf)
virtual int	computeLoadGToLRotationMtrx (FloatMatrix &answer)
virtual int	computeLoadLEToLRotationMatrix (FloatMatrix &answer, int iEdge, GaussPoint *gp)
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)

Protected Attributes
IntArray	dofs
FloatArray	springStiffnesses
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.

Static Protected Attributes
static FEI3dLineLin	interp_lin
static ParamKey	IPK_LineDistributedSpring_Dofs
static ParamKey	IPK_LineDistributedSpring_Stiffnesses

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

Detailed Description

This class implements two-node subsoil element with linear interpolation. In each node, a user selected DOFs can be interpolated. At present only a linear spring behaviour is implemented directly at element level. Can be generalized to nonlinear one, but then a material model should be used instead.

Definition at line 57 of file linedistributedspring.h.

Constructor & Destructor Documentation

◆ LineDistributedSpring()

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

Definition at line 61 of file linedistributedspring.C.

References oofem::Element::numberOfDofMans, oofem::Element::numberOfGaussPoints, oofem::SPRNodalRecoveryModelInterface::SPRNodalRecoveryModelInterface(), oofem::StructuralElement::StructuralElement(), and oofem::ZZNodalRecoveryModelInterface::ZZNodalRecoveryModelInterface().

◆ ~LineDistributedSpring()

virtual oofem::LineDistributedSpring::~LineDistributedSpring ( )

inlinevirtual

Definition at line 71 of file linedistributedspring.h.

Member Function Documentation

◆ checkConsistency()

int oofem::LineDistributedSpring::checkConsistency ( void )

overridevirtual

Performs consistency check. This method is called at startup for all elements in particular domain. This method is intended to check data compatibility. Particular element types should test if compatible material and crossSection both with required capabilities are specified. Derived classes should provide their own analysis specific tests. Some printed input if incompatibility is found should be provided (error or warning member functions). Method can be also used to initialize some variables, since this is invoked after all domain components are instanciated.

Returns: Zero value if check fail, otherwise nonzero.

Reimplemented from oofem::Element.

Definition at line 182 of file linedistributedspring.C.

References oofem::Element::checkConsistency().

◆ computeBmatrixAt()

void oofem::LineDistributedSpring::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 101 of file linedistributedspring.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), dofs, oofem::GaussPoint::giveNaturalCoordinates(), interp_lin, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeBodyLoadVectorAt()

void oofem::LineDistributedSpring::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 94 of file linedistributedspring.C.

References OOFEM_ERROR.

◆ computeConstitutiveMatrixAt()

void oofem::LineDistributedSpring::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 134 of file linedistributedspring.C.

References oofem::FloatMatrix::beDiagonal(), dofs, oofem::FloatMatrix::resize(), and springStiffnesses.

◆ computeGaussPoints()

void oofem::LineDistributedSpring::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 82 of file linedistributedspring.C.

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

◆ computeLumpedMassMatrix()

void oofem::LineDistributedSpring::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 228 of file linedistributedspring.C.

References OOFEM_ERROR.

Referenced by computeMassMatrix().

◆ computeMassMatrix()

void oofem::LineDistributedSpring::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 92 of file linedistributedspring.h.

References computeLumpedMassMatrix().

◆ computeNumberOfDofs()

int oofem::LineDistributedSpring::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 86 of file linedistributedspring.h.

References oofem::IntArray::giveSize().

◆ computeStressVector()

void oofem::LineDistributedSpring::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 121 of file linedistributedspring.C.

References oofem::FloatArray::at(), dofs, oofem::FloatArray::resize(), and springStiffnesses.

Referenced by printOutputAt().

◆ computeVolumeAround()

double oofem::LineDistributedSpring::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 217 of file linedistributedspring.C.

References oofem::GaussPoint::giveNaturalCoordinates(), oofem::GaussPoint::giveWeight(), and interp_lin.

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::Element.

Definition at line 80 of file linedistributedspring.h.

◆ giveDofManDofIDMask()

void oofem::LineDistributedSpring::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 210 of file linedistributedspring.C.

References dofs.

◆ giveGeometryType()

Element_Geometry_Type oofem::LineDistributedSpring::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 81 of file linedistributedspring.h.

◆ giveInputRecordName()

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

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 79 of file linedistributedspring.h.

References _IFT_LineDistributedSpring_Name.

◆ giveInterface()

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

overridevirtual

Interface requesting service.

See also: InterfaceType

Returns: Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Definition at line 242 of file linedistributedspring.C.

References oofem::SPRNodalRecoveryModelInterface::SPRNodalRecoveryModelInterface(), oofem::SPRNodalRecoveryModelInterfaceType, oofem::ZZNodalRecoveryModelInterface::ZZNodalRecoveryModelInterface(), and oofem::ZZNodalRecoveryModelInterfaceType.

◆ giveInternalForcesVector()

void oofem::LineDistributedSpring::giveInternalForcesVector	(	FloatArray &	answer,
		TimeStep *	tStep,
		int	useUpdatedGpRecord )

overridevirtual

Returns equivalent nodal forces vectors. Useful for nonlinear analysis. Default implementation computes result as \( F=\int_v B^{\mathrm{T}} \sigma \mathrm{d}V \), where \( \sigma \) is the real element stress vector obtained using computeStressVector service (if useUpdatedGpRecord=0) or (if useUpdatedGpRecord=1) from integration point status. The geometric matrix is obtained using computeBmatrixAt service. Integration is performed using default integration rule, which should produce always valid results, assuming that strains used for computation of stresses are valid.

Parameters

answer	Internal nodal forces vector.
tStep	Time step.
useUpdatedGpRecord	If equal to zero, the stresses in integration points are computed (slow but safe), else if nonzero the stresses are taken directly from integration point status (should be derived from StructuralMaterialStatus) (fast, but engineering model must ensure valid status data in each integration point).

Reimplemented from oofem::StructuralElement.

Definition at line 144 of file linedistributedspring.C.

References oofem::FloatArray::beProductOf(), oofem::StructuralElement::computeStiffnessMatrix(), and oofem::Element::computeVectorOf().

◆ giveInterpolation() [1/2]

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

overridevirtual

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

Reimplemented from oofem::Element.

Definition at line 78 of file linedistributedspring.C.

References interp_lin.

◆ giveInterpolation() [2/2]

FEInterpolation * oofem::LineDistributedSpring::giveInterpolation ( DofIDItem id ) const

overridevirtual

Returns the interpolation for the specific dof id. Special elements which uses a mixed interpolation should reimplement this method.

Parameters

id	ID of the dof for the for the requested interpolation.

Returns: Appropriate interpolation, or NULL if none exists.

Reimplemented from oofem::Element.

Definition at line 71 of file linedistributedspring.C.

References interp_lin.

◆ giveIPValue()

int oofem::LineDistributedSpring::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 236 of file linedistributedspring.C.

◆ giveMaterialMode()

MaterialMode oofem::LineDistributedSpring::giveMaterialMode ( )

inlineoverridevirtual

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

Returns: Material mode of element.

Reimplemented from oofem::Element.

Definition at line 76 of file linedistributedspring.h.

◆ initializeFrom()

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

overridevirtual

Reimplemented from oofem::Element.

Definition at line 159 of file linedistributedspring.C.

References dofs, oofem::FEMComponent::giveDomain(), oofem::Element::initializeFrom(), IPK_LineDistributedSpring_Dofs, IPK_LineDistributedSpring_Stiffnesses, oofem::FEMComponent::number, PM_UPDATE_PARAMETER, and springStiffnesses.

◆ postInitialize()

void oofem::LineDistributedSpring::postInitialize ( )

overridevirtual

Performs post initialization steps.

Reimplemented from oofem::Element.

Definition at line 168 of file linedistributedspring.C.

References dofs, oofem::FEMComponent::giveDomain(), IPK_LineDistributedSpring_Dofs, IPK_LineDistributedSpring_Stiffnesses, oofem::FEMComponent::number, OOFEM_ERROR, PM_ELEMENT_ERROR_IFNOTSET, oofem::Element::postInitialize(), and springStiffnesses.

◆ printOutputAt()

void oofem::LineDistributedSpring::printOutputAt	(	FILE *	file,
		TimeStep *	tStep )

overridevirtual

Prints output of receiver to stream, for given time step. This is used for output into the standard output file.

Parameters

file	File pointer to print to.
tStep	Time step to write for.

Reimplemented from oofem::Element.

Definition at line 188 of file linedistributedspring.C.

References oofem::FloatArray::at(), oofem::StructuralElement::computeStrainVector(), computeStressVector(), oofem::Element::giveDefaultIntegrationRulePtr(), oofem::Element::giveLabel(), oofem::FEMComponent::giveNumber(), and oofem::FloatArray::giveSize().

◆ SPRNodalRecoveryMI_giveDofMansDeterminedByPatch()

void oofem::LineDistributedSpring::SPRNodalRecoveryMI_giveDofMansDeterminedByPatch	(	IntArray &	answer,
		int	pap )

overrideprotectedvirtual

Implements oofem::SPRNodalRecoveryModelInterface.

Definition at line 263 of file linedistributedspring.C.

References oofem::IntArray::at(), oofem::Element::giveNode(), oofem::FEMComponent::giveNumber(), OOFEM_ERROR, and oofem::IntArray::resize().

◆ SPRNodalRecoveryMI_giveNumberOfIP()

int oofem::LineDistributedSpring::SPRNodalRecoveryMI_giveNumberOfIP ( )

inlineoverrideprotectedvirtual

Implements oofem::SPRNodalRecoveryModelInterface.

Definition at line 112 of file linedistributedspring.h.

References oofem::Element::numberOfGaussPoints.

◆ SPRNodalRecoveryMI_givePatchType()

SPRPatchType oofem::LineDistributedSpring::SPRNodalRecoveryMI_givePatchType ( )

inlineoverrideprotectedvirtual

Implements oofem::SPRNodalRecoveryModelInterface.

Definition at line 113 of file linedistributedspring.h.

References oofem::SPRPatchType_2dxy.

◆ SPRNodalRecoveryMI_giveSPRAssemblyPoints()

void oofem::LineDistributedSpring::SPRNodalRecoveryMI_giveSPRAssemblyPoints ( IntArray & pap )

overrideprotectedvirtual

Implements oofem::SPRNodalRecoveryModelInterface.

Definition at line 254 of file linedistributedspring.C.

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

Member Data Documentation

◆ dofs

IntArray oofem::LineDistributedSpring::dofs

protected

Definition at line 63 of file linedistributedspring.h.

Referenced by computeBmatrixAt(), computeConstitutiveMatrixAt(), computeStressVector(), giveDofManDofIDMask(), initializeFrom(), and postInitialize().

◆ interp_lin

FEI3dLineLin oofem::LineDistributedSpring::interp_lin

staticprotected

Definition at line 62 of file linedistributedspring.h.

Referenced by computeBmatrixAt(), computeVolumeAround(), giveInterpolation(), and giveInterpolation().

◆ IPK_LineDistributedSpring_Dofs

ParamKey oofem::LineDistributedSpring::IPK_LineDistributedSpring_Dofs

staticprotected

Definition at line 66 of file linedistributedspring.h.

Referenced by initializeFrom(), and postInitialize().

◆ IPK_LineDistributedSpring_Stiffnesses

ParamKey oofem::LineDistributedSpring::IPK_LineDistributedSpring_Stiffnesses

staticprotected

Definition at line 67 of file linedistributedspring.h.

Referenced by initializeFrom(), and postInitialize().

◆ springStiffnesses

FloatArray oofem::LineDistributedSpring::springStiffnesses

protected

Definition at line 64 of file linedistributedspring.h.

Referenced by computeConstitutiveMatrixAt(), computeStressVector(), initializeFrom(), and postInitialize().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LineDistributedSpring()

◆ ~LineDistributedSpring()

Member Function Documentation

◆ checkConsistency()

◆ computeBmatrixAt()

◆ computeBodyLoadVectorAt()

◆ computeConstitutiveMatrixAt()

◆ computeGaussPoints()

◆ computeLumpedMassMatrix()

◆ computeMassMatrix()

◆ computeNumberOfDofs()

◆ computeStressVector()

◆ computeVolumeAround()

◆ giveClassName()

◆ giveDofManDofIDMask()

◆ giveGeometryType()

◆ giveInputRecordName()

◆ giveInterface()

◆ giveInternalForcesVector()

◆ giveInterpolation() [1/2]

◆ giveInterpolation() [2/2]

◆ giveIPValue()

◆ giveMaterialMode()

◆ initializeFrom()

◆ postInitialize()

◆ printOutputAt()

◆ SPRNodalRecoveryMI_giveDofMansDeterminedByPatch()

◆ SPRNodalRecoveryMI_giveNumberOfIP()

◆ SPRNodalRecoveryMI_givePatchType()

◆ SPRNodalRecoveryMI_giveSPRAssemblyPoints()

Member Data Documentation

◆ dofs

◆ interp_lin

◆ IPK_LineDistributedSpring_Dofs

◆ IPK_LineDistributedSpring_Stiffnesses

◆ springStiffnesses