#include <linearstability.h>

Inheritance diagram for oofem::LinearStability:

Collaboration diagram for oofem::LinearStability:

Public Member Functions
	LinearStability (int i, EngngModel *master=nullptr)
virtual	~LinearStability ()
void	solveYourself () override
void	solveYourselfAt (TimeStep *tStep) override
void	doStepOutput (TimeStep *tStep) override
void	printOutputAt (FILE file, TimeStep tStep) override
void	terminateLinStatic (TimeStep *tStep)
int	requiresNewLsh ()
void	updateYourself (TimeStep *tStep) override
double	giveUnknownComponent (ValueModeType type, TimeStep tStep, Domain d, Dof *dof) override
int	giveUnknownDictHashIndx (ValueModeType mode, TimeStep *tStep) override
bool	newDofHandling () override
void	initializeFrom (InputRecord &ir) override
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
TimeStep *	giveNextStep () override
	Returns next time step (next to current step) of receiver.
double	giveEigenValue (int eigNum) override
	Only relevant for eigen value analysis. Otherwise returns zero.
void	setActiveVector (int i) override
	Only relevant for eigen value analysis. Otherwise does noting.
NumericalMethod *	giveNumericalMethod (MetaStep *mStep) override
	Returns reference to receiver's numerical method.
SparseLinearSystemNM *	giveNumericalMethodForLinStaticProblem (TimeStep *tStep)
const char *	giveInputRecordName () const
const char *	giveClassName () const override
	Returns class name of the receiver.
fMode	giveFormulation () override
Public Member Functions inherited from oofem::StructuralEngngModel
	StructuralEngngModel (int i, EngngModel *master=nullptr)
	Creates new StructuralEngngModel with number i, associated to domain d.
virtual	~StructuralEngngModel ()
	Destructor.
void	updateYourself (TimeStep *tStep) override
int	checkConsistency () override
void	computeReaction (FloatArray &answer, TimeStep *tStep, int di)
void	terminate (TimeStep *tStep) override
void	buildReactionTable (IntArray &restrDofMans, IntArray &restrDofs, IntArray &eqn, TimeStep *tStep, int di)
void	updateInternalRHS (FloatArray &answer, TimeStep tStep, Domain d, FloatArray *eNorm) override
void	showSparseMtrxStructure (int type, oofegGraphicContext &gc, TimeStep *tStep) override
	EngngModel (int i, EngngModel *_master=NULL)
virtual	~EngngModel ()
	Destructor.
	EngngModel (const EngngModel &)=delete
EngngModel &	operator= (const EngngModel &)=delete
Domain *	giveDomain (int n)
void	setDomain (int i, Domain *ptr, bool iDeallocateOld=true)
int	giveNumberOfDomains ()
	Returns number of domains in problem.
const std::string &	giveDescription () const
const time_t &	giveStartTime ()
bool	giveSuppressOutput () const
virtual ErrorEstimator *	giveDomainErrorEstimator (int n)
virtual MaterialInterface *	giveMaterialInterface (int n)
void	setNumberOfEquations (int id, int neq)
FILE *	giveOutputStream ()
	Returns file descriptor of output file.
std::string	giveOutputBaseFileName ()
std::string	giveReferenceFileName ()
void	letOutputBaseFileNameBe (const std ::string &src)
ContextOutputMode	giveContextOutputMode () const
int	giveContextOutputStep () const
void	setContextOutputMode (ContextOutputMode contextMode)
void	setUDContextOutputMode (int cStep)
double	giveDeltaT ()
	Returns time step size from the time step controlelr.
void	setDeltaT (double dT)
	Returns time step size through the time step controlelr.
void	setProblemMode (problemMode pmode)
void	setParallelMode (bool newParallelFlag)
problemMode	giveProblemMode () const
	Returns domain mode.
void	setProblemScale (problemScale pscale)
problemScale	giveProblemScale () const
	Returns scale in multiscale simulation.
virtual void	setRenumberFlag ()
	Sets the renumber flag to true.
virtual void	resetRenumberFlag ()
	Sets the renumber flag to false.
double	giveSolutionStepTime ()
void	giveAnalysisTime (int &rhrs, int &rmin, int &rsec, int &uhrs, int &umin, int &usec)
void	terminateAnalysis ()
virtual void	restartYourself (TimeStep *tS)
void	saveStepContext (TimeStep *tStep, ContextMode mode)
virtual void	initializeYourself (TimeStep *tStep)
virtual int	initializeAdaptive (int tStepNumber)
virtual int	giveNumberOfDomainEquations (int di, const UnknownNumberingScheme &num)
virtual FieldPtr	giveField (FieldType key, TimeStep *)
virtual FieldPtr	giveField (InternalStateType key, TimeStep *)
EngngModel *	giveMasterEngngModel ()
	Returns the master engnmodel.
virtual double	giveLoadLevel ()
	Returns the current load level.
int	updateSharedDofManagers (FloatArray &answer, const UnknownNumberingScheme &s, int ExchangeTag)
int	exchangeRemoteElementData (int ExchangeTag)
virtual int	giveCurrentNumberOfIterations ()
MPI_Comm	giveParallelComm ()
	Returns the communication object of reciever.
int	packRemoteElementData (ProcessCommunicator &processComm)
int	unpackRemoteElementData (ProcessCommunicator &processComm)
int	packDofManagers (ArrayWithNumbering *src, ProcessCommunicator &processComm)
int	unpackDofManagers (ArrayWithNumbering *dest, ProcessCommunicator &processComm)
ProblemCommunicator *	giveProblemCommunicator (EngngModelCommType t)
void	initializeCommMaps (bool forceInit=false)
virtual int	instanciateYourself (DataReader &dr, InputRecord &ir, const char outFileName, const char desc)
void	Instanciate_init ()
int	instanciateDomains (DataReader &dr)
	Instanciate problem domains by calling their instanciateYourself() service.
int	instanciateMetaSteps (DataReader &dr)
	Instanciate problem meta steps by calling their instanciateYourself() service.
virtual int	instanciateDefaultMetaStep (InputRecord &ir)
	Instanciate default metastep, if nmsteps is zero.
virtual void	updateAttributes (MetaStep *mStep)
void	initMetaStepAttributes (MetaStep *mStep)
virtual void	updateDomainLinks ()
MetaStep *	giveCurrentMetaStep ()
	Returns current meta step.
virtual TimeStep *	giveCurrentStep (bool force=false)
virtual void	adaptTimeStep (double nIter)
virtual TimeStep *	givePreviousStep (bool force=false)
virtual void	preInitializeNextStep ()
	Does a pre-initialization of the next time step (implement if necessarry).
virtual TimeStep *	giveSolutionStepWhenIcApply (bool force=false)
virtual int	giveNumberOfFirstStep (bool force=false)
int	giveNumberOfMetaSteps ()
	Return number of meta steps.
MetaStep *	giveMetaStep (int i)
	Returns the i-th meta step.
int	giveNumberOfSteps (bool force=false)
virtual double	giveEndOfTimeOfInterest ()
	Returns end of time interest (time corresponding to end of time integration).
int	giveNumberOfTimeStepWhenIcApply ()
	Returns the time step number, when initial conditions should apply.
ExportModuleManager *	giveExportModuleManager ()
	Returns receiver's export module manager.
EngngModelTimer *	giveTimer ()
	Returns reference to receiver timer (EngngModelTimer).
virtual double	giveInitialTime ()
	return time at the begining of analysis
virtual double	giveFinalTime ()
virtual int	giveNewEquationNumber (int domain, DofIDItem)
virtual int	giveNewPrescribedEquationNumber (int domain, DofIDItem)
std::string	giveContextFileName (int tStepNumber, int stepVersion) const
std::string	giveDomainFileName (int domainNum, int domainSerNum) const
virtual void	updateComponent (TimeStep tStep, NumericalCmpn cmpn, Domain d)
virtual void	initForNewIteration (Domain d, TimeStep tStep, int iterationNumber, const FloatArray &solution)
virtual void	updateSolution (FloatArray &solutionVector, TimeStep tStep, Domain d)
virtual void	updateMatrix (SparseMtrx &mat, TimeStep tStep, Domain d)
virtual void	initStepIncrements ()
virtual int	forceEquationNumbering (int i)
virtual int	forceEquationNumbering ()
virtual int	requiresUnknownsDictionaryUpdate ()
virtual bool	requiresEquationRenumbering (TimeStep *tStep)
virtual void	updateDofUnknownsDictionary (DofManager , TimeStep )
virtual ParallelContext *	giveParallelContext (int n)
virtual void	initParallelContexts ()
virtual void	assemble (SparseMtrx &answer, TimeStep tStep, const MatrixAssembler &ma, const UnknownNumberingScheme &s, Domain domain)
virtual void	assemble (SparseMtrx &answer, TimeStep tStep, const MatrixAssembler &ma, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s, Domain domain)
void	assembleVector (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
void	assembleVectorFromDofManagers (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
void	assembleVectorFromElements (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
void	assembleVectorFromBC (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
void	assembleExtrapolatedForces (FloatArray &answer, TimeStep tStep, CharType type, Domain domain)
void	assemblePrescribedExtrapolatedForces (FloatArray &answer, TimeStep tStep, CharType type, Domain domain)
virtual int	checkProblemConsistency ()
virtual void	init ()
virtual void	postInitialize ()
virtual void	printOutputAt (FILE file, TimeStep tStep, const IntArray &nodeSets, const IntArray &elementSets)
void	outputNodes (FILE file, Domain &domain, TimeStep tStep, int setNum)
void	outputElements (FILE file, Domain &domain, TimeStep tStep, int setNum)
void	printYourself ()
	Prints state of receiver. Useful for debugging.
virtual void	printDofOutputAt (FILE stream, Dof iDof, TimeStep *tStep)
virtual int	useNonlocalStiffnessOption ()
	Returns nonzero if nonlocal stiffness option activated.
bool	isParallel () const
	Returns true if receiver in parallel mode.
int	giveRank () const
	Returns domain rank in a group of collaborating processes (0..groupSize-1).
int	giveNumberOfProcesses () const
	Returns the number of collaborating processes.
EngngModelContext *	giveContext ()
	Context requesting service.
virtual int	giveNumberOfSlaveProblems ()
	Returns number of slave problems.
virtual EngngModel *	giveSlaveProblem (int i)
	Returns i-th slave problem.
virtual bool	giveEquationScalingFlag ()
	Returns the Equation scaling flag, which is used to indicate that governing equation(s) are scaled, or non-dimensionalized.
virtual double	giveVariableScale (VarScaleType varId)
	Returns the scale factor for given variable type.
virtual int	estimateMaxPackSize (IntArray &commMap, DataStream &buff, int packUnpackType)
virtual void	balanceLoad (TimeStep *tStep)
virtual LoadBalancer *	giveLoadBalancer ()
virtual LoadBalancerMonitor *	giveLoadBalancerMonitor ()
void	initParallel ()
	Request domain rank and problem size.
EngngModel *	giveEngngModel ()
	Returns reference to itself -> required by communicator.h.
virtual bool	isElementActivated (int elemNum)
virtual bool	isElementActivated (Element *e)
TimeStepController *	giveTimeStepController ()
	Returns the time step controller.
virtual void	drawYourself (oofegGraphicContext &gc)
virtual void	drawElements (oofegGraphicContext &gc)
virtual void	drawNodes (oofegGraphicContext &gc)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).

Private Attributes
std ::unique_ptr< SparseMtrx >	stiffnessMatrix
std ::unique_ptr< SparseMtrx >	initialStressMatrix
std ::unique_ptr< EigenVectorPrimaryField >	field
FloatArray	eigVal
int	numberOfRequiredEigenValues
double	rtolv
GenEigvalSolverType	solverType
	Numerical method used to solve the problem.
std ::unique_ptr< SparseGeneralEigenValueSystemNM >	nMethod
std ::unique_ptr< SparseLinearSystemNM >	nMethodLS
	Numerical method used to solve the static problem.

Additional Inherited Members
Public Types inherited from oofem::EngngModel
enum	EngngModel_UpdateMode { EngngModel_Unknown_Mode , EngngModel_SUMM_Mode , EngngModel_SET_Mode }
enum	EngngModelCommType { PC_default , PC_nonlocal }
enum	InitialGuess { IG_None = 0 , IG_Tangent = 1 }
Protected Types inherited from oofem::EngngModel
enum	{ InternalForcesExchangeTag , MassExchangeTag , LoadExchangeTag , ReactionExchangeTag , RemoteElementExchangeTag }
	Message tags. More...
Protected Member Functions inherited from oofem::StructuralEngngModel
void	printReactionForces (TimeStep tStep, int id, FILE out)
virtual void	computeExternalLoadReactionContribution (FloatArray &reactions, TimeStep *tStep, int di)
void	updateInternalState (TimeStep *tStep)
void	printOutputAt (FILE file, TimeStep tStep) override
virtual void	packMigratingData (TimeStep *tStep)
virtual void	unpackMigratingData (TimeStep *tStep)
Protected Attributes inherited from oofem::StructuralEngngModel
StateCounterType	internalVarUpdateStamp
FloatArray	internalForcesEBENorm
	Norm of nodal internal forces evaluated on element by element basis (squared).
Protected Attributes inherited from oofem::EngngModel
int	ndomains
	Number of receiver domains.
std ::vector< std ::unique_ptr< Domain > >	domainList
	List of problem domains.
int	numberOfSteps
	Total number of time steps.
int	numberOfEquations
	Total number of equation in current time step.
int	numberOfPrescribedEquations
	Total number or prescribed equations in current time step.
IntArray	domainNeqs
	Number of equations per domain.
IntArray	domainPrescribedNeqs
	Number of prescribed equations per domain.
bool	renumberFlag
	Renumbering flag (renumbers equations after each step, necessary if Dirichlet BCs change).
bool	profileOpt
	Profile optimized numbering flag (using Sloan's algorithm).
int	equationNumberingCompleted
	Equation numbering completed flag.
int	nMetaSteps
	Number of meta steps.
std ::vector< MetaStep >	metaStepList
	List of problem metasteps.
std ::unique_ptr< TimeStep >	stepWhenIcApply
	Solution step when IC (initial conditions) apply.
std ::unique_ptr< TimeStep >	currentStep
	Current time step.
std ::unique_ptr< TimeStep >	previousStep
	Previous time step.
int	number
	Receivers id.
std::string	dataOutputFileName
	Path to output stream.
std::string	coreOutputFileName
	String with core output file name.
FILE *	outputStream
	Output stream.
std::string	referenceFileName
	String with reference file name.
ContextOutputMode	contextOutputMode
	Domain context output mode.
int	contextOutputStep
ExportModuleManager	exportModuleManager
	Export module manager.
InitModuleManager	initModuleManager
	Initialization module manager.
MonitorManager	monitorManager
	Monitor manager.
problemMode	pMode
	Domain mode.
problemScale	pScale
	Multiscale mode.
time_t	startTime
	Solution start time.
EngngModel *	master
	Master e-model; if defined receiver is in maintained (slave) mode.
EngngModelContext *	context
	Context.
EngngModelTimer	timer
	E-model timer.
int	parallelFlag
	Flag indicating that the receiver runs in parallel.
enum fMode	nonLinFormulation
	Type of non linear formulation (total or updated formulation).
std::unique_ptr< ErrorEstimator >	defaultErrEstimator
	Error estimator. Useful for adaptivity, or simply printing errors output.
std::unique_ptr< TimeStepController >	timeStepController
	Time Step controller is responsible for collecting data from analysis, elements, and materials, and select the appropriate timestep size for the next step, or reduce the step in case of convergence problems.
int	rank
	Domain rank in a group of collaborating processes (0..groupSize-1).
int	numProcs
	Total number of collaborating processes.
int	nonlocalExt
	Flag indicating if nonlocal extension active, which will cause data to be sent between shared elements before computing the internal forces.
char	processor_name [PROCESSOR_NAME_LENGTH]
	Processor name.
MPI_Comm	comm
	Communication object for this engineering model.
std::unique_ptr< LoadBalancer >	lb
	Load Balancer.
std::unique_ptr< LoadBalancerMonitor >	lbm
bool	loadBalancingFlag
	If set to true, load balancing is active.
bool	force_load_rebalance_in_first_step
	Debug flag forcing load balancing after first step.
CommunicatorBuff *	commBuff
	Common Communicator buffer.
ProblemCommunicator *	communicator
	Communicator.
ProblemCommunicator *	nonlocCommunicator
	NonLocal Communicator. Necessary when nonlocal constitutive models are used.
std ::vector< ParallelContext >	parallelContextList
	List where parallel contexts are stored.
bool	suppressOutput
	Flag for suppressing output to file.
std::string	simulationDescription

Detailed Description

This class implements way for examining critical load of structure.

Solution of this problem is base on equation in the form of: \( K\cdot y=w (K_\sigma)y \). Currently eigenvalue problem is solved using subspace iteration. The linear static solution, determining normal forces is done in time = 0.

Tasks:

Assembling the governing equation in the form.
Creating Numerical method for \( K\cdot y=w(K_\sigma)y \).
Interfacing Numerical method to Elements.

Definition at line 72 of file linearstability.h.

Constructor & Destructor Documentation

◆ LinearStability()

oofem::LinearStability::LinearStability	(	int	i,
		EngngModel *	master = nullptr )

Definition at line 63 of file linearstability.C.

References oofem::GES_SubspaceIt, oofem::EngngModel::master, oofem::EngngModel::ndomains, numberOfRequiredEigenValues, oofem::EngngModel::numberOfSteps, rtolv, solverType, and oofem::StructuralEngngModel::StructuralEngngModel().

◆ ~LinearStability()

virtual oofem::LinearStability::~LinearStability ( )

inlinevirtual

Definition at line 91 of file linearstability.h.

Member Function Documentation

◆ doStepOutput()

void oofem::LinearStability::doStepOutput ( TimeStep * tStep )

overridevirtual

Prints the ouput of the solution step (using virtual this->printOutputAtservice) to the stream detemined using this->giveOutputStream() method and calls exportModuleManager to do output.

Reimplemented from oofem::EngngModel.

Definition at line 297 of file linearstability.C.

References oofem::EngngModel::exportModuleManager, oofem::Domain::giveDofManagers(), oofem::EngngModel::giveDomain(), oofem::EngngModel::giveOutputStream(), numberOfRequiredEigenValues, printOutputAt(), oofem::TimeStep::setNumber(), oofem::TimeStep::setTime(), and oofem::EngngModel::suppressOutput.

◆ giveClassName()

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

inlineoverridevirtual

Returns class name of the receiver.

Implements oofem::EngngModel.

Definition at line 124 of file linearstability.h.

◆ giveEigenValue()

double oofem::LinearStability::giveEigenValue ( int eigNum )

inlineoverridevirtual

Only relevant for eigen value analysis. Otherwise returns zero.

Reimplemented from oofem::EngngModel.

Definition at line 116 of file linearstability.h.

References eigVal.

◆ giveFormulation()

fMode oofem::LinearStability::giveFormulation ( )

inlineoverridevirtual

Indicates type of non linear computation (total or updated formulation). This is used for example on Nodal level to update coordinates if updated formulation is done, or on element level, when non linear contributions are computed.

Reimplemented from oofem::EngngModel.

Definition at line 125 of file linearstability.h.

References oofem::TL.

◆ giveInputRecordName()

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

inline

Definition at line 123 of file linearstability.h.

References _IFT_LinearStability_Name.

◆ giveNextStep()

TimeStep * oofem::LinearStability::giveNextStep ( )

overridevirtual

Returns next time step (next to current step) of receiver.

Reimplemented from oofem::EngngModel.

Definition at line 151 of file linearstability.C.

References oofem::EngngModel::currentStep, oofem::EngngModel::giveNumberOfFirstStep(), and oofem::EngngModel::previousStep.

Referenced by solveYourself().

◆ giveNumericalMethod()

NumericalMethod * oofem::LinearStability::giveNumericalMethod ( MetaStep * mStep )

overridevirtual

Returns reference to receiver's numerical method.

Reimplemented from oofem::EngngModel.

Definition at line 73 of file linearstability.C.

References oofem::classFactory, oofem::EngngModel::giveDomain(), nMethod, OOFEM_ERROR, and solverType.

Referenced by solveYourselfAt().

◆ giveNumericalMethodForLinStaticProblem()

SparseLinearSystemNM * oofem::LinearStability::giveNumericalMethodForLinStaticProblem ( TimeStep * tStep )

Todo: Support other solvers

Definition at line 86 of file linearstability.C.

References oofem::classFactory, oofem::EngngModel::giveDomain(), nMethodLS, OOFEM_ERROR, and oofem::ST_Direct.

Referenced by solveYourselfAt().

◆ giveUnknownComponent()

double oofem::LinearStability::giveUnknownComponent	(	ValueModeType	,
		TimeStep *	,
		Domain *	,
		Dof *	)

overridevirtual

Returns requested unknown. Unknown at give time step is characterized by its type and mode and by its equation number. This function is used by Dofs, when they are requested for their associated unknowns.

See also: Dof::giveUnknown

Reimplemented from oofem::EngngModel.

Definition at line 145 of file linearstability.C.

References field.

◆ giveUnknownDictHashIndx()

int oofem::LinearStability::giveUnknownDictHashIndx	(	ValueModeType	mode,
		TimeStep *	tStep )

overridevirtual

This method is responsible for computing unique dictionary id (ie hash value) from given valueModeType and time step. This function is used by particular dofs to access unknown identified by given parameters from its dictionary using computed index. Usually the hash algorithm should produce index that depend on time step relatively to actual one to avoid storage of complete history.

Reimplemented from oofem::EngngModel.

Definition at line 139 of file linearstability.C.

References oofem::TimeStep::giveNumber(), and numberOfRequiredEigenValues.

◆ initializeFrom()

void oofem::LinearStability::initializeFrom ( InputRecord & ir )

overridevirtual

Initializes receiver according to object description in input reader. InitString can be imagined as data record in component database belonging to receiver. Receiver may use value-name extracting functions to extract particular field from record.

Reimplemented from oofem::EngngModel.

Definition at line 100 of file linearstability.C.

References _IFT_EngngModel_suppressOutput, _IFT_LinearStability_nroot, _IFT_LinearStability_rtolv, _IFT_LinearStability_stype, oofem::EngngModel::dataOutputFileName, field, oofem::InputRecord::hasField(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, oofem::EngngModel::nMetaSteps, numberOfRequiredEigenValues, oofem::EngngModel::numberOfSteps, OOFEM_ERROR, oofem::EngngModel::outputStream, PRG_HEADER, rtolv, oofem::EngngModel::simulationDescription, solverType, oofem::EngngModel::startTime, and oofem::EngngModel::suppressOutput.

◆ newDofHandling()

bool oofem::LinearStability::newDofHandling ( )

inlineoverridevirtual

Temporary method for allowing code to seamlessly convert from the old to new way of handling DOF values. (the new way expects the field to store all values, regardless of if they are computed, from BC, or IC.) This is used by MasterDof

Todo: When all models have converted to using a field, this should be removed.

Reimplemented from oofem::EngngModel.

Definition at line 110 of file linearstability.h.

◆ printOutputAt()

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

overridevirtual

Prints output of receiver to output domain stream, for given time step. Corresponding function for element gauss points is invoked (gaussPoint::printOutputAt).

Reimplemented from oofem::EngngModel.

Definition at line 320 of file linearstability.C.

References eigVal, oofem::Domain::giveDofManagers(), oofem::EngngModel::giveDomain(), oofem::Domain::giveElements(), oofem::Domain::giveOutputManager(), numberOfRequiredEigenValues, oofem::StructuralEngngModel::printReactionForces(), oofem::TimeStep::setNumber(), oofem::TimeStep::setTime(), and oofem::OutputManager::testTimeStepOutput().

Referenced by doStepOutput().

◆ requiresNewLsh()

int oofem::LinearStability::requiresNewLsh ( )

inline

Definition at line 100 of file linearstability.h.

◆ restoreContext()

void oofem::LinearStability::restoreContext	(	DataStream &	stream,
		ContextMode	mode )

overridevirtual

Restores the state of model from output stream. Restores not only the receiver state, but also same function is invoked for all DofManagers and Elements in associated domain. Note that by restoring element context also contexts of all associated integration points (and material statuses) are restored. Each context is associated with unique time step. Only one context per time step is allowed. Restore context function will restore such context, which is related (through its step number) to time step number and version given in obj parameter. Restoring context will change current time step in order to correspond to newly restored context.

Parameters

stream	Context file.
mode	Determines amount of info in stream.

Exceptions

ContextIOERR exception if error encountered.

Reimplemented from oofem::EngngModel.

Definition at line 385 of file linearstability.C.

References oofem::CIO_OK, eigVal, field, and THROW_CIOERR.

◆ saveContext()

void oofem::LinearStability::saveContext	(	DataStream &	stream,
		ContextMode	mode )

overridevirtual

Stores the state of model to output stream. Stores not only the receiver state, but also same function is invoked for all DofManagers and Elements in associated domain. Note that by storing element context also contexts of all associated integration points (and material statuses) are stored.

Parameters

stream	Context stream.
mode	Determines amount of info in stream.

Exceptions

ContextIOERR If error encountered.

Reimplemented from oofem::EngngModel.

Definition at line 372 of file linearstability.C.

References oofem::CIO_OK, eigVal, field, and THROW_CIOERR.

Referenced by terminateLinStatic().

◆ setActiveVector()

void oofem::LinearStability::setActiveVector ( int i )

overridevirtual

Only relevant for eigen value analysis. Otherwise does noting.

Reimplemented from oofem::EngngModel.

Definition at line 365 of file linearstability.C.

References oofem::EngngModel::giveCurrentStep().

◆ solveYourself()

void oofem::LinearStability::solveYourself ( )

overridevirtual

Starts solution process. Implementation should invoke for each time step solveYourselfAt function with time step as parameter. Time steps are created using giveNextStep function (this will set current time step to newly created, and updates previous step).

Reimplemented from oofem::EngngModel.

Definition at line 168 of file linearstability.C.

References oofem::EngngModel::giveCurrentMetaStep(), oofem::EngngModel::giveCurrentStep(), giveNextStep(), solveYourselfAt(), oofem::StructuralEngngModel::terminate(), oofem::EngngModel::timer, and oofem::EngngModel::updateAttributes().

◆ solveYourselfAt()

void oofem::LinearStability::solveYourselfAt ( TimeStep * tStep )

overridevirtual

Solves problem for given time step. Should assemble characteristic matrices and vectors if necessary and solve problem using appropriate numerical method. After finishing solution, this->updateYourself function for updating solution state and then this->terminate function (for updating nodal and element values) should be called.

Todo: Don't hardcode skyline matrix only

Reimplemented from oofem::EngngModel.

Definition at line 179 of file linearstability.C.

References oofem::assemble(), oofem::EngngModel::assembleVector(), oofem::classFactory, eigVal, field, oofem::EngngModel::giveDomain(), oofem::EngngModel::giveMetaStep(), oofem::TimeStep::giveMetaStepNumber(), oofem::EngngModel::giveNumberOfDomainEquations(), giveNumericalMethod(), giveNumericalMethodForLinStaticProblem(), initialStressMatrix, oofem::FloatArray::negated(), nMethod, nMethodLS, numberOfRequiredEigenValues, OOFEM_LOG_INFO, oofem::EngngModel::ReactionExchangeTag, rtolv, oofem::TimeStep::setNumber(), oofem::TimeStep::setTime(), oofem::SMT_Skyline, stiffnessMatrix, terminateLinStatic(), and oofem::EngngModel::updateSharedDofManagers().

Referenced by solveYourself().

◆ terminateLinStatic()

void oofem::LinearStability::terminateLinStatic ( TimeStep * tStep )

Definition at line 261 of file linearstability.C.

References oofem::COM_Always, oofem::COM_Required, oofem::COM_UserDefined, oofem::Domain::giveDofManagers(), oofem::EngngModel::giveDomain(), oofem::Domain::giveElements(), oofem::TimeStep::giveNumber(), oofem::Domain::giveNumberOfDofManagers(), oofem::Domain::giveNumberOfElements(), saveContext(), and VERBOSE_PRINT0.

Referenced by solveYourselfAt().

◆ updateYourself()

void oofem::LinearStability::updateYourself ( TimeStep * tStep )

overridevirtual

Updates internal state after finishing time step. (for example total values may be updated according to previously solved increments). Then element values are also updated (together with related integration points and material statuses).

Reimplemented from oofem::EngngModel.

Definition at line 256 of file linearstability.C.

Member Data Documentation

◆ eigVal

FloatArray oofem::LinearStability::eigVal

private

Definition at line 79 of file linearstability.h.

Referenced by giveEigenValue(), printOutputAt(), restoreContext(), saveContext(), and solveYourselfAt().

◆ field

std :: unique_ptr< EigenVectorPrimaryField > oofem::LinearStability::field

private

Definition at line 77 of file linearstability.h.

Referenced by giveUnknownComponent(), initializeFrom(), restoreContext(), saveContext(), and solveYourselfAt().

◆ initialStressMatrix

std :: unique_ptr< SparseMtrx > oofem::LinearStability::initialStressMatrix

private

Definition at line 76 of file linearstability.h.

Referenced by solveYourselfAt().

◆ nMethod

std :: unique_ptr< SparseGeneralEigenValueSystemNM > oofem::LinearStability::nMethod

private

Definition at line 85 of file linearstability.h.

Referenced by giveNumericalMethod(), and solveYourselfAt().

◆ nMethodLS

std :: unique_ptr< SparseLinearSystemNM > oofem::LinearStability::nMethodLS

private

Numerical method used to solve the static problem.

Definition at line 87 of file linearstability.h.

Referenced by giveNumericalMethodForLinStaticProblem(), and solveYourselfAt().

◆ numberOfRequiredEigenValues

int oofem::LinearStability::numberOfRequiredEigenValues

private

Definition at line 81 of file linearstability.h.

Referenced by doStepOutput(), giveUnknownDictHashIndx(), initializeFrom(), LinearStability(), printOutputAt(), and solveYourselfAt().

◆ rtolv

double oofem::LinearStability::rtolv

private

Definition at line 82 of file linearstability.h.

Referenced by initializeFrom(), LinearStability(), and solveYourselfAt().

◆ solverType

GenEigvalSolverType oofem::LinearStability::solverType

private

Numerical method used to solve the problem.

Definition at line 84 of file linearstability.h.

Referenced by giveNumericalMethod(), initializeFrom(), and LinearStability().

◆ stiffnessMatrix

std :: unique_ptr< SparseMtrx > oofem::LinearStability::stiffnessMatrix

private

Definition at line 75 of file linearstability.h.

Referenced by solveYourselfAt().

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

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LinearStability()

◆ ~LinearStability()

Member Function Documentation

◆ doStepOutput()

◆ giveClassName()

◆ giveEigenValue()

◆ giveFormulation()

◆ giveInputRecordName()

◆ giveNextStep()

◆ giveNumericalMethod()

◆ giveNumericalMethodForLinStaticProblem()

◆ giveUnknownComponent()

◆ giveUnknownDictHashIndx()

◆ initializeFrom()

◆ newDofHandling()

◆ printOutputAt()

◆ requiresNewLsh()

◆ restoreContext()

◆ saveContext()

◆ setActiveVector()

◆ solveYourself()

◆ solveYourselfAt()

◆ terminateLinStatic()

◆ updateYourself()

Member Data Documentation

◆ eigVal

◆ field

◆ initialStressMatrix

◆ nMethod

◆ nMethodLS

◆ numberOfRequiredEigenValues

◆ rtolv

◆ solverType

◆ stiffnessMatrix