This class implements nonlinear dynamic engineering problem. More...

#include <nlineardynamic.h>

Inheritance diagram for oofem::NonLinearDynamic:

Collaboration diagram for oofem::NonLinearDynamic:

Public Member Functions
	NonLinearDynamic (int i, EngngModel *_master=NULL)

virtual	~NonLinearDynamic ()

virtual void	solveYourself ()
	Starts solution process. More...

virtual void	solveYourselfAt (TimeStep *tStep)
	Solves problem for given time step. More...

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

virtual void	printDofOutputAt (FILE stream, Dof iDof, TimeStep *tStep)
	DOF printing routine. More...

virtual void	updateYourself (TimeStep *tStep)
	Updates internal state after finishing time step. More...

virtual void	updateComponent (TimeStep tStep, NumericalCmpn, Domain d)
	Updates components mapped to numerical method if necessary during solution process. More...

virtual void	updateAttributes (MetaStep *mStep)
	Update receiver attributes according to step metaStep attributes. More...

virtual void	initializeYourself (TimeStep *tStep)
	Provides the opportunity to initialize state variables stored in element integration points according to initial conditions using function initializeYourself() on element level. More...

virtual double	giveUnknownComponent (ValueModeType type, TimeStep tStep, Domain d, Dof *dof)
	Returns requested unknown. More...

virtual IRResultType	initializeFrom (InputRecord *ir)
	Initializes receiver according to object description in input reader. More...

virtual TimeStep *	giveNextStep ()
	Returns next time step (next to current step) of receiver. More...

virtual NumericalMethod *	giveNumericalMethod (MetaStep *mStep)
	Returns reference to receiver's numerical method. More...

virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode)
	Stores the state of model to output stream. More...

virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode)
	Restores the state of model from output stream. More...

virtual void	updateDomainLinks ()
	Updates domain links after the domains of receiver have changed. More...

virtual const char *	giveInputRecordName () const

virtual const char *	giveClassName () const
	Returns class name of the receiver. More...

virtual fMode	giveFormulation ()
	Indicates type of non linear computation (total or updated formulation). More...

virtual int	useNonlocalStiffnessOption ()
	Returns nonzero if nonlocal stiffness option activated. More...

virtual int	giveUnknownDictHashIndx (ValueModeType mode, TimeStep *tStep)
	This method is responsible for computing unique dictionary id (ie hash value) from given valueModeType and time step. More...

void	timesMtrx (FloatArray &answer, FloatArray &vec, CharType type, Domain domain, TimeStep tStep)

TimeDiscretizationType	giveInitialTimeDiscretization ()

virtual void	showSparseMtrxStructure (int type, oofegGraphicContext &gc, TimeStep *tStep)
	Shows the sparse structure of required matrix, type == 1 stiffness. More...

virtual int	estimateMaxPackSize (IntArray &commMap, DataStream &buff, int packUnpackType)
	Determines the space necessary for send/receive buffer. More...

virtual LoadBalancer *	giveLoadBalancer ()
	Returns reference to receiver's load balancer. More...

virtual LoadBalancerMonitor *	giveLoadBalancerMonitor ()
	Returns reference to receiver's load balancer monitor. More...

Public Member Functions inherited from oofem::StructuralEngngModel
	StructuralEngngModel (int i, EngngModel *_master=NULL)
	Creates new StructuralEngngModel with number i, associated to domain d. More...

virtual	~StructuralEngngModel ()
	Destructor. More...

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

void	computeReaction (FloatArray &answer, TimeStep *tStep, int di)
	Computes reaction forces. More...

virtual void	terminate (TimeStep *tStep)
	Terminates the solution of time step. More...

void	buildReactionTable (IntArray &restrDofMans, IntArray &restrDofs, IntArray &eqn, TimeStep *tStep, int di)
	Builds the reaction force table. More...

Public Member Functions inherited from oofem::EngngModel
	EngngModel (int i, EngngModel *_master=NULL)
	Constructor. More...

virtual	~EngngModel ()
	Destructor. More...

	EngngModel (const EngngModel &)=delete

EngngModel &	operator= (const EngngModel &)=delete

Domain *	giveDomain (int n)
	Service for accessing particular problem domain. More...

void	setDomain (int i, Domain *ptr, bool iDeallocateOld=true)
	Sets i-th domain of receiver. More...

int	giveNumberOfDomains ()
	Returns number of domains in problem. More...

const std::string &	giveDescription () const

const time_t &	giveStartTime ()

bool	giveSuppressOutput () const

virtual ErrorEstimator *	giveDomainErrorEstimator (int n)
	Service for accessing ErrorEstimator corresponding to particular domain. More...

virtual MaterialInterface *	giveMaterialInterface (int n)
	Returns material interface representation for given domain. More...

void	setNumberOfEquations (int id, int neq)

FILE *	giveOutputStream ()
	Returns file descriptor of output file. More...

std::string	giveOutputBaseFileName ()
	Returns base output file name to which extensions, like .out .vtu .osf should be added. More...

std::string	giveReferenceFileName ()
	Returns reference file name. More...

void	letOutputBaseFileNameBe (const std::string &src)
	Sets the base output file name. More...

ContextOutputMode	giveContextOutputMode ()
	Returns domain context output mode. More...

int	giveContextOutputStep ()
	Returns domain context output step. More...

void	setContextOutputMode (ContextOutputMode contextMode)
	Sets context output mode of receiver. More...

void	setUDContextOutputMode (int cStep)
	Sets user defined context output mode (it sets contextOutputMode to contextOutputMode), setting contextOutputStep to given value. More...

void	setProblemMode (problemMode pmode)
	Sets domain mode to given mode. More...

void	setParallelMode (bool newParallelFlag)
	Sets the problem to run in parallel (or not). More...

problemMode	giveProblemMode ()
	Returns domain mode. More...

void	setProblemScale (problemScale pscale)
	Sets scale in multiscale simulation. More...

problemScale	giveProblemScale ()
	Returns scale in multiscale simulation. More...

virtual void	setRenumberFlag ()
	Sets the renumber flag to true. More...

virtual void	resetRenumberFlag ()
	Sets the renumber flag to false. More...

double	giveSolutionStepTime ()
	Returns the user time of the current simulation step in seconds. More...

void	giveAnalysisTime (int &rhrs, int &rmin, int &rsec, int &uhrs, int &umin, int &usec)
	Returns the real and user time for the analysis. More...

void	terminateAnalysis ()
	Performs analysis termination after finishing analysis. More...

virtual void	doStepOutput (TimeStep *tStep)
	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. More...

void	saveStepContext (TimeStep *tStep, ContextMode mode)
	Saves context of given solution step, if required (determined using this->giveContextOutputMode() method). More...

virtual int	initializeAdaptive (int tStepNumber)
	Initializes the newly generated discretization state according to previous solution. More...

virtual int	giveNumberOfDomainEquations (int di, const UnknownNumberingScheme &num)
	Returns number of equations for given domain in active (current time step) time step. More...

virtual FieldPtr	giveField (FieldType key, TimeStep *)
	Returns the smart pointer to requested field, Null otherwise. More...

EngngModel *	giveMasterEngngModel ()
	Returns the master engnmodel. More...

virtual double	giveLoadLevel ()
	Returns the current load level. More...

virtual double	giveEigenValue (int eigNum)
	Only relevant for eigen value analysis. Otherwise returns zero. More...

virtual void	setActiveVector (int i)
	Only relevant for eigen value analysis. Otherwise does noting. More...

int	updateSharedDofManagers (FloatArray &answer, const UnknownNumberingScheme &s, int ExchangeTag)
	Exchanges necessary remote DofManagers data. More...

int	exchangeRemoteElementData (int ExchangeTag)
	Exchanges necessary remote element data with remote partitions. More...

virtual int	giveCurrentNumberOfIterations ()
	Returns number of iterations that was required to reach equilibrium - used for adaptive step length in staggered problem. More...

MPI_Comm	giveParallelComm ()
	Returns the communication object of reciever. More...

int	packRemoteElementData (ProcessCommunicator &processComm)
	Packs data of local element to be received by their remote counterpart on remote partitions. More...

int	unpackRemoteElementData (ProcessCommunicator &processComm)
	Unpacks data for remote elements (which are mirrors of remote partition's local elements). More...

int	packDofManagers (ArrayWithNumbering *src, ProcessCommunicator &processComm)
	Packing function for vector values of DofManagers. More...

int	unpackDofManagers (ArrayWithNumbering *dest, ProcessCommunicator &processComm)
	Unpacking function for vector values of DofManagers . More...

ProblemCommunicator *	giveProblemCommunicator (EngngModelCommType t)

void	initializeCommMaps (bool forceInit=false)

virtual int	instanciateYourself (DataReader &dr, InputRecord ir, const char outFileName, const char *desc)
	Initializes whole problem according to its description stored in inputStream. More...

void	Instanciate_init ()
	Initialization of the receiver state (opening the default output stream, empty domain creation, initialization of parallel context, etc) before Initialization form DataReader. More...

int	instanciateDomains (DataReader &dr)
	Instanciate problem domains by calling their instanciateYourself() service. More...

int	instanciateMetaSteps (DataReader &dr)
	Instanciate problem meta steps by calling their instanciateYourself() service. More...

virtual int	instanciateDefaultMetaStep (InputRecord *ir)
	Instanciate default metastep, if nmsteps is zero. More...

void	initMetaStepAttributes (MetaStep *mStep)
	Update e-model attributes attributes according to step metaStep attributes. More...

MetaStep *	giveCurrentMetaStep ()
	Returns current meta step. More...

virtual TimeStep *	giveCurrentStep (bool force=false)
	Returns current time step. More...

virtual TimeStep *	givePreviousStep (bool force=false)
	Returns previous time step. More...

TimeStep *	generateNextStep ()
	Generate new time step (and associate metastep). More...

virtual void	preInitializeNextStep ()
	Does a pre-initialization of the next time step (implement if necessarry) More...

virtual TimeStep *	giveSolutionStepWhenIcApply (bool force=false)
	Returns the solution step when Initial Conditions (IC) apply. More...

virtual int	giveNumberOfFirstStep (bool force=false)
	Returns number of first time step used by receiver. More...

int	giveNumberOfMetaSteps ()
	Return number of meta steps. More...

MetaStep *	giveMetaStep (int i)
	Returns the i-th meta step. More...

int	giveNumberOfSteps (bool force=false)
	Returns total number of steps. More...

virtual double	giveEndOfTimeOfInterest ()
	Returns end of time interest (time corresponding to end of time integration). More...

int	giveNumberOfTimeStepWhenIcApply ()
	Returns the time step number, when initial conditions should apply. More...

ExportModuleManager *	giveExportModuleManager ()
	Returns receiver's export module manager. More...

EngngModelTimer *	giveTimer ()
	Returns reference to receiver timer (EngngModelTimer). More...

virtual int	giveNewEquationNumber (int domain, DofIDItem)
	Increases number of equations of receiver's domain and returns newly created equation number. More...

virtual int	giveNewPrescribedEquationNumber (int domain, DofIDItem)
	Increases number of prescribed equations of receiver's domain and returns newly created equation number. More...

std::string	giveContextFileName (int tStepNumber, int stepVersion) const
	Returns the filename for the context file for the given step and version. More...

std::string	giveDomainFileName (int domainNum, int domainSerNum) const
	Returns the filename for the given domain (used by adaptivity and restore) More...

virtual void	initStepIncrements ()
	Initializes solution of new time step. More...

virtual int	forceEquationNumbering (int i)
	Forces equation renumbering on given domain. More...

virtual int	forceEquationNumbering ()
	Forces equation renumbering on all domains associated to engng model. More...

virtual int	requiresUnknownsDictionaryUpdate ()
	Indicates if EngngModel requires Dofs dictionaries to be updated. More...

virtual bool	requiresEquationRenumbering (TimeStep *tStep)
	Returns true if equation renumbering is required for given solution step. More...

virtual void	updateDofUnknownsDictionary (DofManager , TimeStep )
	Updates necessary values in Dofs unknown dictionaries. More...

virtual ParallelContext *	giveParallelContext (int n)
	Returns the parallel context corresponding to given domain (n) and unknown type Default implementation returns i-th context from parallelContextList. More...

virtual void	initParallelContexts ()
	Creates parallel contexts. More...

virtual void	assemble (SparseMtrx &answer, TimeStep tStep, const MatrixAssembler &ma, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s, Domain domain)
	Assembles characteristic matrix of required type into given sparse matrix. More...

void	assembleVector (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
	Assembles characteristic vector of required type from dofManagers, element, and active boundary conditions, into given vector. More...

void	assembleVectorFromDofManagers (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
	Assembles characteristic vector of required type from dofManagers into given vector. More...

void	assembleVectorFromElements (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
	Assembles characteristic vector of required type from elements into given vector. More...

void	assembleVectorFromBC (FloatArray &answer, TimeStep tStep, const VectorAssembler &va, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)
	Assembles characteristic vector of required type from boundary conditions. More...

void	assembleExtrapolatedForces (FloatArray &answer, TimeStep tStep, CharType type, Domain domain)
	Assembles the extrapolated internal forces vector, useful for obtaining a good initial guess in nonlinear analysis with Dirichlet boundary conditions. More...

void	assemblePrescribedExtrapolatedForces (FloatArray &answer, TimeStep tStep, CharType type, Domain domain)

void	assembleVectorFromContacts (FloatArray &answer, TimeStep tStep, CharType type, ValueModeType mode, const UnknownNumberingScheme &s, Domain domain, FloatArray *eNorms=NULL)

virtual int	checkProblemConsistency ()
	Allows programmer to test problem its internal data, before computation begins. More...

virtual void	init ()
	Initializes the receiver state. More...

virtual void	postInitialize ()
	Performs post-initialization for all the problem contents (which is called after initializeFrom). More...

virtual void	printOutputAt (FILE file, TimeStep tStep, const IntArray &nodeSets, const IntArray &elementSets)

void	outputNodes (FILE file, Domain &domain, TimeStep tStep, int setNum)
	Outputs all nodes in the given set. More...

void	outputElements (FILE file, Domain &domain, TimeStep tStep, int setNum)
	Outputs all elements in the given set. More...

void	printYourself ()
	Prints state of receiver. Useful for debugging. More...

bool	isParallel () const
	Returns true if receiver in parallel mode. More...

int	giveRank () const
	Returns domain rank in a group of collaborating processes (0..groupSize-1) More...

int	giveNumberOfProcesses () const
	Returns the number of collaborating processes. More...

EngngModelContext *	giveContext ()
	Context requesting service. More...

virtual int	giveNumberOfSlaveProblems ()
	Returns number of slave problems. More...

virtual EngngModel *	giveSlaveProblem (int i)
	Returns i-th slave problem. More...

virtual bool	giveEquationScalingFlag ()
	Returns the Equation scaling flag, which is used to indicate that governing equation(s) are scaled, or non-dimensionalized. More...

virtual double	giveVariableScale (VarScaleType varId)
	Returns the scale factor for given variable type. More...

virtual void	balanceLoad (TimeStep *tStep)
	Recovers the load balance between processors, if needed. More...

void	initParallel ()
	Request domain rank and problem size. More...

EngngModel *	giveEngngModel ()
	Returns reference to itself -> required by communicator.h. More...

virtual bool	isElementActivated (int elemNum)

virtual bool	isElementActivated (Element *e)

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). More...

Protected Member Functions
void	assemble (SparseMtrx &answer, TimeStep tStep, const MatrixAssembler &ma, const UnknownNumberingScheme &, Domain domain)
	Assembles characteristic matrix of required type into given sparse matrix. More...

void	proceedStep (int di, TimeStep *tStep)

void	determineConstants (TimeStep *tStep)

virtual void	packMigratingData (TimeStep *tStep)
	Packs receiver data when rebalancing load. More...

virtual void	unpackMigratingData (TimeStep *tStep)
	Unpacks receiver data when rebalancing load. More...

Protected Member Functions inherited from oofem::StructuralEngngModel
void	printReactionForces (TimeStep tStep, int id, FILE out)
	Computes and prints reaction forces, computed from nodal internal forces. More...

virtual void	computeExternalLoadReactionContribution (FloatArray &reactions, TimeStep *tStep, int di)
	Computes the contribution external loading to reaction forces in given domain. More...

virtual void	giveInternalForces (FloatArray &answer, bool normFlag, int di, TimeStep *tStep)
	Evaluates the nodal representation of internal forces by assembling contributions from individual elements. More...

void	updateInternalState (TimeStep *tStep)
	Updates nodal values (calls also this->updateDofUnknownsDictionary for updating dofs unknowns dictionaries if model supports changes of static system). More...

Protected Attributes
std::unique_ptr< SparseMtrx >	effectiveStiffnessMatrix

std::unique_ptr< SparseMtrx >	massMatrix

LinSystSolverType	solverType

SparseMtrxType	sparseMtrxType

int	initFlag

TimeDiscretizationType	initialTimeDiscretization

double	gamma

double	beta

double	eta

double	delta

double	a0

double	a1

double	a2

double	a3

double	a4

double	a5

double	a6

double	a7

FloatArray	velocityVector

FloatArray	accelerationVector

FloatArray	previousLoadVector

FloatArray	previousVelocityVector

FloatArray	previousAccelerationVector

FloatArray	help

FloatArray	rhs

FloatArray	rhs2

FloatArray	previousInternalForces

FloatArray	previousIncrementOfDisplacement

FloatArray	previousTotalDisplacement

FloatArray	totalDisplacement

FloatArray	incrementOfDisplacement

FloatArray	internalForces

FloatArray	forcesVector

int	currentIterations

int	totIterations

int	MANRMSteps

int	commInitFlag

int	nonlocalStiffnessFlag

std::unique_ptr< SparseNonLinearSystemNM >	nMethod
	Numerical method used to solve the problem. More...

double	deltaT
	Intrinsic time increment. More...

Protected Attributes inherited from oofem::StructuralEngngModel
StateCounterType	internalVarUpdateStamp
	Contains last time stamp of internal variable update. More...

FloatArray	internalForcesEBENorm
	Norm of nodal internal forces evaluated on element by element basis (squared) More...

Protected Attributes inherited from oofem::EngngModel
int	ndomains
	Number of receiver domains. More...

std::vector< std::unique_ptr< Domain > >	domainList
	List of problem domains. More...

int	numberOfSteps
	Total number of time steps. More...

int	numberOfEquations
	Total number of equation in current time step. More...

int	numberOfPrescribedEquations
	Total number or prescribed equations in current time step. More...

IntArray	domainNeqs
	Number of equations per domain. More...

IntArray	domainPrescribedNeqs
	Number of prescribed equations per domain. More...

bool	renumberFlag
	Renumbering flag (renumbers equations after each step, necessary if Dirichlet BCs change). More...

bool	profileOpt
	Profile optimized numbering flag (using Sloan's algorithm). More...

int	equationNumberingCompleted
	Equation numbering completed flag. More...

int	nMetaSteps
	Number of meta steps. More...

std::vector< MetaStep >	metaStepList
	List of problem metasteps. More...

std::unique_ptr< TimeStep >	stepWhenIcApply
	Solution step when IC (initial conditions) apply. More...

std::unique_ptr< TimeStep >	currentStep
	Current time step. More...

std::unique_ptr< TimeStep >	previousStep
	Previous time step. More...

int	number
	Receivers id. More...

std::string	dataOutputFileName
	Path to output stream. More...

std::string	coreOutputFileName
	String with core output file name. More...

FILE *	outputStream
	Output stream. More...

std::string	referenceFileName
	String with reference file name. More...

ContextOutputMode	contextOutputMode
	Domain context output mode. More...

int	contextOutputStep

ExportModuleManager *	exportModuleManager
	Export module manager. More...

InitModuleManager *	initModuleManager
	Initialization module manager. More...

problemMode	pMode
	Domain mode. More...

problemScale	pScale
	Multiscale mode. More...

time_t	startTime
	Solution start time. More...

EngngModel *	master
	Master e-model; if defined receiver is in maintained (slave) mode. More...

EngngModelContext *	context
	Context. More...

EngngModelTimer	timer
	E-model timer. More...

int	parallelFlag
	Flag indicating that the receiver runs in parallel. More...

enum fMode	nonLinFormulation
	Type of non linear formulation (total or updated formulation). More...

ErrorEstimator *	defaultErrEstimator
	Error estimator. Useful for adaptivity, or simply printing errors output. More...

int	rank
	Domain rank in a group of collaborating processes (0..groupSize-1). More...

int	numProcs
	Total number of collaborating processes. More...

int	nonlocalExt
	Flag indicating if nonlocal extension active, which will cause data to be sent between shared elements before computing the internal forces. More...

char	processor_name [PROCESSOR_NAME_LENGTH]
	Processor name. More...

MPI_Comm	comm
	Communication object for this engineering model. More...

CommunicatorBuff *	commBuff
	Common Communicator buffer. More...

ProblemCommunicator *	communicator
	Communicator. More...

ProblemCommunicator *	nonlocCommunicator
	NonLocal Communicator. Necessary when nonlocal constitutive models are used. More...

std::vector< ParallelContext >	parallelContextList
	List where parallel contexts are stored. More...

bool	suppressOutput
	Flag for suppressing output to file. More...

std::string	simulationDescription

LoadBalancer *	lb
	Load Balancer. More...

LoadBalancerMonitor *	lbm

bool	loadBalancingFlag
	If set to true, load balancing is active. More...

bool	force_load_rebalance_in_first_step
	Debug flag forcing load balancing after first step. More...

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 }
	Means to choose methods for finding a good initial guess. More...

Protected Types inherited from oofem::EngngModel
enum	{ InternalForcesExchangeTag, MassExchangeTag, LoadExchangeTag, ReactionExchangeTag, RemoteElementExchangeTag }
	Message tags. More...

Detailed Description

This class implements nonlinear dynamic engineering problem.

Solution of this problem is performed as a series of increments (loading or displacement). At start of Each increment we assemble new tangent stiffness, and iteratively trying to fulfill balance of external and real internal forces at end of load step (see numerical method ). The loading applied can bo of two types:

proportional incremental loading
non-proportional fixed loading, reflecting the previous history, but could not be scaled (like dead weight).

Tasks:

Creating Numerical method for solving nonlinear problem.
Assembling tangent stiffness matrix.
Interfacing Numerical method to Elements.
Managing time steps.

Solution proceedure described in: A SURVEY OF DIRECT TIME-INTEGRATION METHODS IN COMPUTATIONAL STRUCTURAL DYNAMICS - II. IMPLICIT METHODS K. Subbaraj and M. A. Dokainish Computers & Structures Vol. 32. No. 6. pp. 1387-1401, 1989

Author: Andreas Feymark; Alper Cesur

Definition at line 85 of file nlineardynamic.h.

Constructor & Destructor Documentation

oofem::NonLinearDynamic::NonLinearDynamic	(	int	i,
		EngngModel *	_master = `NULL`
	)

Definition at line 69 of file nlineardynamic.C.

References commInitFlag, initFlag, initialTimeDiscretization, oofem::StructuralEngngModel::internalVarUpdateStamp, oofem::EngngModel::ndomains, and oofem::TD_ThreePointBackward.

oofem::NonLinearDynamic::~NonLinearDynamic ( )

virtual

Definition at line 80 of file nlineardynamic.C.

Member Function Documentation

void oofem::NonLinearDynamic::assemble	(	SparseMtrx &	answer,
		TimeStep *	tStep,
		const MatrixAssembler &	ma,
		const UnknownNumberingScheme &	s,
		Domain *	domain
	)

protectedvirtual

Assembles characteristic matrix of required type into given sparse matrix.

Parameters

answer	Assembled matrix.
tStep	Time step, when answer is assembled.
s	Determines the equation numbering scheme.
type	Characteristic components of type type are requested from elements and assembled.
domain	Source domain.

Todo:: This rotation matrix is not flexible enough.. it can only work with full size matrices and doesn't allow for flexibility in the matrixassembler.

Note: : Some active bcs still make changes even when they are not applied We should probably reconsider this approach, so that they e.g. just prescribe their lagrange mult. instead.

Reimplemented from oofem::EngngModel.

Definition at line 739 of file nlineardynamic.C.

References oofem::EngngModel::assemble(), oofem::Timer::getUtime(), oofem::Domain::giveElements(), nonlocalStiffnessFlag, OOFEM_LOG_DEBUG, oofem::SparseMtrx::printStatistics(), oofem::Timer::startTimer(), oofem::Timer::stopTimer(), and oofem::EngngModel::timer.

Referenced by giveInitialTimeDiscretization(), proceedStep(), and updateComponent().

void oofem::NonLinearDynamic::determineConstants ( TimeStep * tStep )

protected

Definition at line 498 of file nlineardynamic.C.

References a0, a1, a2, a3, a4, a5, a6, beta, deltaT, gamma, oofem::TimeStep::giveTimeDiscretization(), oofem::TimeStep::giveTimeIncrement(), oofem::TimeStep::isTheFirstStep(), OOFEM_ERROR, OOFEM_LOG_DEBUG, oofem::TD_Newmark, oofem::TD_ThreePointBackward, and oofem::TD_TwoPointBackward.

Referenced by giveInitialTimeDiscretization(), and proceedStep().

int oofem::NonLinearDynamic::estimateMaxPackSize	(	IntArray &	commMap,
		DataStream &	buff,
		int	packUnpackType
	)

virtual

Determines the space necessary for send/receive buffer.

It uses related communication map pattern to determine the maximum size needed.

Parameters

commMap	Communication map used to send/receive messages.
buff	Communication buffer.
packUnpackType	Determines the type of packed quantity, used by receiver to estimate the size of pack/unpack buffer accordingly.

Returns: Upper bound of space needed.

Todo:: Fix this old ProblemCommMode__NODE_CUT value

Reimplemented from oofem::EngngModel.

Definition at line 843 of file nlineardynamic.C.

References oofem::Element::estimatePackSize(), oofem::Domain::giveDofManager(), oofem::EngngModel::giveDomain(), oofem::Domain::giveElement(), oofem::DataStream::givePackSizeOfDouble(), and oofem::max().

Referenced by giveInitialTimeDiscretization().

virtual const char* oofem::NonLinearDynamic::giveClassName ( ) const

inlinevirtual

Returns class name of the receiver.

Implements oofem::EngngModel.

Definition at line 142 of file nlineardynamic.h.

virtual fMode oofem::NonLinearDynamic::giveFormulation ( )

inlinevirtual

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 143 of file nlineardynamic.h.

References oofem::EngngModel::nonLinFormulation.

TimeDiscretizationType oofem::NonLinearDynamic::giveInitialTimeDiscretization ( )

inline

Definition at line 148 of file nlineardynamic.h.

References assemble(), determineConstants(), estimateMaxPackSize(), gc, giveLoadBalancer(), giveLoadBalancerMonitor(), initialTimeDiscretization, packMigratingData(), proceedStep(), showSparseMtrxStructure(), and unpackMigratingData().

Referenced by oofem::FluidStructureProblem::initializeYourself().

virtual const char* oofem::NonLinearDynamic::giveInputRecordName ( ) const

inlinevirtual

Definition at line 141 of file nlineardynamic.h.

References _IFT_NonLinearDynamic_Name.

LoadBalancer * oofem::NonLinearDynamic::giveLoadBalancer ( )

virtual

Returns reference to receiver's load balancer.

Reimplemented from oofem::EngngModel.

Definition at line 875 of file nlineardynamic.C.

References oofem::classFactory, oofem::ClassFactory::createLoadBalancer(), oofem::EngngModel::giveDomain(), oofem::EngngModel::lb, and oofem::EngngModel::loadBalancingFlag.

Referenced by giveInitialTimeDiscretization(), and updateDomainLinks().

LoadBalancerMonitor * oofem::NonLinearDynamic::giveLoadBalancerMonitor ( )

virtual

Returns reference to receiver's load balancer monitor.

Reimplemented from oofem::EngngModel.

Definition at line 891 of file nlineardynamic.C.

References oofem::classFactory, oofem::ClassFactory::createLoadBalancerMonitor(), oofem::EngngModel::lbm, and oofem::EngngModel::loadBalancingFlag.

Referenced by giveInitialTimeDiscretization().

TimeStep * oofem::NonLinearDynamic::giveNextStep ( )

virtual

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

Reimplemented from oofem::EngngModel.

Definition at line 226 of file nlineardynamic.C.

References oofem::EngngModel::currentStep, deltaT, oofem::EngngModel::giveMetaStep(), oofem::EngngModel::giveNumberOfFirstStep(), initialTimeDiscretization, oofem::microScale, oofem::EngngModel::nMetaSteps, OOFEM_ERROR, oofem::EngngModel::previousStep, and oofem::EngngModel::pScale.

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

virtual

Returns reference to receiver's numerical method.

Reimplemented from oofem::EngngModel.

Definition at line 85 of file nlineardynamic.C.

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

Referenced by proceedStep(), and updateDomainLinks().

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

virtual

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 191 of file nlineardynamic.C.

References oofem::Dof::__giveEquationNumber(), accelerationVector, oofem::FloatArray::at(), oofem::EngngModel::giveCurrentStep(), incrementOfDisplacement, OOFEM_ERROR, totalDisplacement, and velocityVector.

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

inlinevirtual

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 145 of file nlineardynamic.h.

References timesMtrx().

IRResultType oofem::NonLinearDynamic::initializeFrom ( InputRecord * ir )

virtual

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 125 of file nlineardynamic.C.

void oofem::NonLinearDynamic::initializeYourself ( TimeStep * tStep )

virtual

Provides the opportunity to initialize state variables stored in element integration points according to initial conditions using function initializeYourself() on element level.

Should be called when current time step is time step when IC will apply (see EngngModel::giveNumberOfTimeStepWhenIcApply) somewhere from solveYourselfAt function). Implementation must be provided. Default implementation is empty.

Reimplemented from oofem::EngngModel.

Definition at line 305 of file nlineardynamic.C.

References accelerationVector, oofem::FloatArray::at(), deltaT, oofem::Domain::giveDofManagers(), oofem::EngngModel::giveDomain(), oofem::StructuralEngngModel::giveInternalForces(), oofem::EngngModel::giveNumberOfDomainEquations(), oofem::EngngModel::giveNumberOfTimeStepWhenIcApply(), incrementOfDisplacement, initFlag, internalForces, oofem::TimeStep::isTheFirstStep(), previousAccelerationVector, previousIncrementOfDisplacement, previousInternalForces, previousTotalDisplacement, previousVelocityVector, oofem::FloatArray::resize(), oofem::EngngModel::stepWhenIcApply, totalDisplacement, velocityVector, and oofem::FloatArray::zero().

void oofem::NonLinearDynamic::packMigratingData ( TimeStep * tStep )

protectedvirtual

Packs receiver data when rebalancing load.

When rebalancing happens, the local numbering will be lost on majority of processors. Instead of identifying values of solution vectors that have to be send/received and then performing renumbering, all solution vectors are assumed to be stored in dof dictionaries before data migration. Then dofs will take care themselves for packing and unpacking. After data migration and local renumbering, the solution vectors will be restored from dof dictionary data back.

Reimplemented from oofem::EngngModel.

Definition at line 907 of file nlineardynamic.C.

References oofem::FloatArray::at(), oofem::Domain::giveDofManager(), oofem::EngngModel::giveDomain(), oofem::Domain::giveNumberOfDofManagers(), and totalDisplacement.

Referenced by giveInitialTimeDiscretization().

void oofem::NonLinearDynamic::printDofOutputAt	(	FILE *	stream,
		Dof *	iDof,
		TimeStep *	tStep
	)

virtual

DOF printing routine.

Called by DofManagers to print Dof specific part. Dof class provides component printing routines, but emodel is responsible for what will be printed at DOF level.

Parameters

stream	output stream
iDof	dof to be processed
tStep	solution step

Reimplemented from oofem::EngngModel.

Definition at line 657 of file nlineardynamic.C.

References oofem::Dof::printMultipleOutputAt().

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

virtual

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::StructuralEngngModel.

Definition at line 640 of file nlineardynamic.C.

References currentIterations, oofem::OutputManager::doDofManOutput(), oofem::OutputManager::doElementOutput(), oofem::EngngModel::giveDomain(), oofem::TimeStep::giveNumber(), oofem::Domain::giveOutputManager(), oofem::TimeStep::giveTargetTime(), nMethod, and oofem::StructuralEngngModel::printReactionForces().

void oofem::NonLinearDynamic::proceedStep	(	int	di,
		TimeStep *	tStep
	)

protected

Definition at line 358 of file nlineardynamic.C.

References a0, a1, a2, a3, a4, a5, a6, accelerationVector, oofem::FloatArray::add(), assemble(), oofem::EngngModel::assembleVector(), oofem::FloatArray::at(), oofem::classFactory, oofem::ClassFactory::createSparseMtrx(), currentIterations, delta, determineConstants(), effectiveStiffnessMatrix, eta, forcesVector, oofem::EngngModel::giveCurrentMetaStep(), oofem::EngngModel::giveDomain(), oofem::EngngModel::giveNumberOfDomainEquations(), giveNumericalMethod(), help, incrementOfDisplacement, initFlag, internalForces, oofem::StructuralEngngModel::internalForcesEBENorm, oofem::EngngModel::LoadExchangeTag, massMatrix, NM_Success, nMethod, nonlocalStiffnessFlag, OOFEM_ERROR, OOFEM_LOG_DEBUG, previousAccelerationVector, previousIncrementOfDisplacement, previousInternalForces, previousTotalDisplacement, previousVelocityVector, oofem::FloatArray::resize(), rhs, rhs2, oofem::SparseNonLinearSystemNM::rlm_total, oofem::SMT_CompCol, sparseMtrxType, oofem::FloatArray::subtract(), timesMtrx(), totalDisplacement, totIterations, oofem::EngngModel::updateSharedDofManagers(), velocityVector, and oofem::FloatArray::zero().

Referenced by giveInitialTimeDiscretization(), and solveYourselfAt().

contextIOResultType oofem::NonLinearDynamic::restoreContext	(	DataStream &	stream,
		ContextMode	mode
	)

virtual

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.

Returns: contextIOResultType.

Exceptions

ContextIOERR exception if error encountered.

Reimplemented from oofem::EngngModel.

Definition at line 695 of file nlineardynamic.C.

References accelerationVector, oofem::CIO_OK, incrementOfDisplacement, oofem::EngngModel::restoreContext(), oofem::FloatArray::restoreYourself(), THROW_CIOERR, totalDisplacement, and velocityVector.

contextIOResultType oofem::NonLinearDynamic::saveContext	(	DataStream &	stream,
		ContextMode	mode
	)

virtual

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.

Returns: contextIOResultType.

Exceptions

ContextIOERR If error encountered.

Reimplemented from oofem::EngngModel.

Definition at line 667 of file nlineardynamic.C.

References accelerationVector, oofem::CIO_OK, incrementOfDisplacement, oofem::EngngModel::saveContext(), oofem::FloatArray::storeYourself(), THROW_CIOERR, totalDisplacement, and velocityVector.

void oofem::NonLinearDynamic::showSparseMtrxStructure	(	int	type,
		oofegGraphicContext &	gc,
		TimeStep *	tStep
	)

virtual

Shows the sparse structure of required matrix, type == 1 stiffness.

Reimplemented from oofem::StructuralEngngModel.

Definition at line 767 of file nlineardynamic.C.

References oofem::EngngModel::giveDomain(), and oofem::Domain::giveElements().

Referenced by giveInitialTimeDiscretization().

void oofem::NonLinearDynamic::solveYourself ( )

virtual

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 262 of file nlineardynamic.C.

References commInitFlag, oofem::EngngModel::giveNumberOfDomainEquations(), oofem::EngngModel::giveRank(), oofem::EngngModel::initializeCommMaps(), oofem::EngngModel::isParallel(), OOFEM_LOG_INFO, and oofem::EngngModel::solveYourself().

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

virtual

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.

Reimplemented from oofem::EngngModel.

Definition at line 282 of file nlineardynamic.C.

References commInitFlag, oofem::TimeStep::giveNumber(), oofem::EngngModel::giveNumberOfDomainEquations(), oofem::EngngModel::giveRank(), oofem::TimeStep::giveTargetTime(), oofem::EngngModel::initializeCommMaps(), oofem::EngngModel::isParallel(), OOFEM_LOG_INFO, OOFEM_LOG_RELEVANT, and proceedStep().

void oofem::NonLinearDynamic::timesMtrx	(	FloatArray &	answer,
		FloatArray &	vec,
		CharType	type,
		Domain *	domain,
		TimeStep *	tStep
	)

void oofem::NonLinearDynamic::unpackMigratingData ( TimeStep * tStep )

protectedvirtual

Unpacks receiver data when rebalancing load.

When rebalancing happens, the local numbering will be lost on majority of processors. Instead of identifying values of solution vectors that have to be send/received and then performing renumbering, all solution vectors are assumed to be stored in dof dictionaries before data migration. Then dofs will take care themselves for packing and unpacking. After data migration and local renumbering, the solution vectors will be restored from dof dictionary data back.

Reimplemented from oofem::EngngModel.

Definition at line 926 of file nlineardynamic.C.

References oofem::FloatArray::at(), oofem::DofManager_shared, oofem::Domain::giveDofManager(), oofem::EngngModel::giveDomain(), oofem::EngngModel::giveDomainErrorEstimator(), oofem::Domain::giveNumberOfDofManagers(), oofem::EngngModel::giveNumberOfDomainEquations(), incrementOfDisplacement, initFlag, oofem::EngngModel::initializeCommMaps(), nMethod, oofem::ErrorEstimator::reinitialize(), oofem::FloatArray::resize(), and totalDisplacement.

Referenced by giveInitialTimeDiscretization().

void oofem::NonLinearDynamic::updateAttributes ( MetaStep * mStep )

virtual

Update receiver attributes according to step metaStep attributes.

Allows the certain parameters or attributes to be updated for particular metastep. The metastep provides the attributes record, from which the corresponding attributes can be read. The service takes a MetaStep parameter. It is recommended, to implement this service in such way, that multiple calls for steps belonging to same MetaStep does not change response. The default implementation updates the numerical method attributes.

Parameters

mStep Meta step.

Reimplemented from oofem::EngngModel.

Definition at line 102 of file nlineardynamic.C.

References _IFT_NonLinearDynamic_delta, _IFT_NonLinearDynamic_deltat, _IFT_NonLinearDynamic_eta, delta, deltaT, eta, oofem::MetaStep::giveAttributesRecord(), IR_GIVE_OPTIONAL_FIELD, OOFEM_ERROR, and oofem::EngngModel::updateAttributes().

void oofem::NonLinearDynamic::updateComponent	(	TimeStep *	tStep,
		NumericalCmpn	cmpn,
		Domain *	d
	)

virtual

Updates components mapped to numerical method if necessary during solution process.

Some numerical methods may require updating mapped components during solution process (e.g., updating of tangent stiffness when using updated Newton-Raphson method).

Parameters

tStep	Time when component is updated.
cmpn	Numerical component to update.
d	Domain.

Reimplemented from oofem::EngngModel.

Definition at line 560 of file nlineardynamic.C.

References a0, a1, oofem::FloatArray::add(), assemble(), oofem::FloatArray::beScaled(), currentIterations, delta, effectiveStiffnessMatrix, eta, forcesVector, oofem::Timer::getUtime(), oofem::EngngModel::giveDomain(), oofem::StructuralEngngModel::giveInternalForces(), oofem::Domain::giveNumber(), help, incrementOfDisplacement, internalForces, oofem::InternalRhs, MANRMSteps, massMatrix, oofem::NonLinearLhs, OOFEM_ERROR, OOFEM_LOG_DEBUG, previousInternalForces, rhs2, oofem::Timer::startTimer(), oofem::Timer::stopTimer(), oofem::FloatArray::subtract(), oofem::EngngModel::timer, timesMtrx(), and totIterations.

void oofem::NonLinearDynamic::updateDomainLinks ( )

virtual

Updates domain links after the domains of receiver have changed.

Used mainly after restoring context - the domains may change and this service is then used to update domain variables in all components belonging to receiver like error estimators, solvers, etc, having domains as attributes.

Reimplemented from oofem::EngngModel.

Definition at line 724 of file nlineardynamic.C.

References oofem::EngngModel::giveCurrentMetaStep(), oofem::EngngModel::giveDomain(), giveLoadBalancer(), giveNumericalMethod(), oofem::NumericalMethod::setDomain(), oofem::LoadBalancer::setDomain(), and oofem::EngngModel::updateDomainLinks().

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

virtual

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::StructuralEngngModel.

Definition at line 547 of file nlineardynamic.C.

References accelerationVector, incrementOfDisplacement, internalForces, previousAccelerationVector, previousIncrementOfDisplacement, previousInternalForces, previousTotalDisplacement, previousVelocityVector, totalDisplacement, totIterations, oofem::StructuralEngngModel::updateYourself(), and velocityVector.