#include <prescribedgradient.h>

Inheritance diagram for oofem::PrescribedGradient:

Collaboration diagram for oofem::PrescribedGradient:

Public Member Functions
	PrescribedGradient (int n, Domain *d)
virtual	~PrescribedGradient ()
	Destructor.
double	give (Dof *dof, ValueModeType mode, double time) override
bcType	giveType () const override
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
virtual void	updateCoefficientMatrix (FloatMatrix &C)
void	computeField (FloatArray &sigma, TimeStep *tStep) override
void	computeTangent (FloatMatrix &tangent, TimeStep *tStep) override
void	scale (double s) override
const char *	giveClassName () const override
const char *	giveInputRecordName () const override
Public Member Functions inherited from oofem::BoundaryCondition
	BoundaryCondition (int i, Domain *d)
virtual	~BoundaryCondition ()
	Destructor.
virtual double	give (Dof dof, ValueModeType mode, TimeStep tStep)
void	setPrescribedValue (double s)
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
Public Member Functions inherited from oofem::GeneralBoundaryCondition
	GeneralBoundaryCondition (int n, Domain *d)
virtual	~GeneralBoundaryCondition ()
	Destructor.
int	giveSetNumber () const
virtual int	giveNumberOfInternalDofManagers ()
	Gives the number of internal dof managers.
virtual DofManager *	giveInternalDofManager (int i)
	Gives an internal dof manager from receiver.
Function *	giveTimeFunction ()
int	getIsImposedTimeFunctionNumber () const
void	setIsImposedTimeFunctionNumber (int funcIndx)
virtual bcValType	giveBCValType () const
virtual bool	isImposed (TimeStep *tStep)
virtual const IntArray &	giveDofIDs () const
virtual bcGeomType	giveBCGeoType () const
virtual double	giveProperty (int aProperty, TimeStep *tStep) const
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
virtual void	updateYourself (TimeStep *tStep)
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	updateLocalNumbering (EntityRenumberingFunctor &f)
virtual void	initializeFrom (InputRecord &ir, int priority)
virtual void	initializeFinish ()
virtual void	postInitialize ()
	Performs post initialization steps. Called after all components are created and initialized.
virtual int	checkConsistency ()
virtual void	printOutputAt (FILE file, TimeStep tStep)
virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging.
virtual Interface *	giveInterface (InterfaceType t)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).
Public Member Functions inherited from oofem::PrescribedGradientHomogenization
	PrescribedGradientHomogenization ()
virtual	~PrescribedGradientHomogenization ()
virtual double	domainSize ()
void	setPrescribedGradient (const FloatMatrix &t)
void	setPrescribedGradientVoigt (const FloatArray &t)
void	giveGradientVoigt (FloatArray &oGradient) const
void	setCenterCoordinate (FloatArray &x)
FloatArray &	giveCenterCoordinate ()
	Returns the center coordinate.

Additional Inherited Members
Protected Member Functions inherited from oofem::PrescribedGradientHomogenization
virtual double	domainSize (Domain *d, int set)
Protected Attributes inherited from oofem::BoundaryCondition
FloatArray	values
	Prescribed values for each resp. dof.
Protected Attributes inherited from oofem::GeneralBoundaryCondition
int	timeFunction
	Associated load time function.
bcValType	valType
	Physical meaning of BC value.
IntArray	dofs
	Dofs that b.c. is applied to (relevant for Dirichlet type b.c.s).
int	isImposedTimeFunction
int	set
	Set number for boundary condition to be applied to.
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.
Protected Attributes inherited from oofem::PrescribedGradientHomogenization
FloatMatrix	mGradient
	Prescribed gradient \( d_{ij} \).
FloatArray	mCenterCoord
	Center coordinate \( \bar{x}_i \).

Detailed Description

Prescribes \( v_i = d_{ij}(x_j-\bar{x}_j) \) or \( s = d_{1j}(x_j - \bar{x}_j) \) where \( v_i \) are primary unknowns for the subscale. This is typical boundary condition in multiscale analysis where \( d = \partial_x s\) would a macroscopic gradient at the integration point, i.e. this is a boundary condition for prolongation. It is also convenient to use when one wants to test a arbitrary specimen for shear.

Author: Mikael Öhman; Erik Svenning

Definition at line 61 of file prescribedgradient.h.

Constructor & Destructor Documentation

◆ PrescribedGradient()

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

inline

Creates boundary condition with given number, belonging to given domain.

Parameters

n	Boundary condition number.
d	Domain to which new object will belongs.

Definition at line 69 of file prescribedgradient.h.

References oofem::BoundaryCondition::BoundaryCondition().

◆ ~PrescribedGradient()

virtual oofem::PrescribedGradient::~PrescribedGradient ( )

inlinevirtual

Destructor.

Definition at line 72 of file prescribedgradient.h.

Member Function Documentation

◆ computeField()

void oofem::PrescribedGradient::computeField	(	FloatArray &	sigma,
		TimeStep *	tStep )

overridevirtual

Computes the homogenized, macroscopic, field (stress).

Parameters

sigma	Output quantity (typically stress).
tStep	Active time step.

Implements oofem::PrescribedGradientHomogenization.

Definition at line 161 of file prescribedgradient.C.

References oofem::EngngModel::assembleVector(), oofem::FloatArray::beTProductOf(), oofem::FEMComponent::domain, oofem::PrescribedGradientHomogenization::domainSize(), oofem::FEMComponent::giveDomain(), oofem::FEMComponent::giveNumber(), oofem::EngngModel::giveNumberOfDomainEquations(), oofem::GeneralBoundaryCondition::giveSetNumber(), oofem::FloatArray::times(), updateCoefficientMatrix(), and oofem::FloatArray::zero().

Referenced by oofem::GnuplotExportModule::outputBoundaryCondition().

◆ computeTangent()

void oofem::PrescribedGradient::computeTangent	(	FloatMatrix &	tangent,
		TimeStep *	tStep )

overridevirtual

Computes the macroscopic tangent for homogenization problems through sensitivity analysis.

Parameters

tangent	Output tangent.
tStep	Active time step.

Todo: Get this from engineering model

Implements oofem::PrescribedGradientHomogenization.

Definition at line 183 of file prescribedgradient.C.

References oofem::EngngModel::assemble(), oofem::FloatMatrix::beTProductOf(), oofem::classFactory, oofem::FEMComponent::domain, oofem::PrescribedGradientHomogenization::domainSize(), oofem::FEMComponent::giveDomain(), oofem::GeneralBoundaryCondition::giveSetNumber(), OOFEM_ERROR, oofem::ST_Petsc, oofem::FloatMatrix::subtract(), oofem::FloatMatrix::times(), and updateCoefficientMatrix().

◆ give()

double oofem::PrescribedGradient::give	(	Dof *	dof,
		ValueModeType	mode,
		double	time )

overridevirtual

Todo: Use the user-specified dofs here instead:

Reimplemented from oofem::BoundaryCondition.

Definition at line 59 of file prescribedgradient.C.

References oofem::FloatArray::at(), oofem::FloatArray::beDifferenceOf(), oofem::FloatArray::beProductOf(), oofem::GeneralBoundaryCondition::dofs, oofem::DofManager::giveCoordinates(), oofem::Dof::giveDofID(), oofem::Dof::giveDofManager(), oofem::FloatArray::giveSize(), oofem::GeneralBoundaryCondition::giveTimeFunction(), oofem::PrescribedGradientHomogenization::mCenterCoord, oofem::PrescribedGradientHomogenization::mGradient, OOFEM_ERROR, and oofem::FloatArray::times().

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::BoundaryCondition.

Definition at line 113 of file prescribedgradient.h.

◆ giveInputRecord()

void oofem::PrescribedGradient::giveInputRecord ( DynamicInputRecord & input )

overridevirtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::BoundaryCondition.

Definition at line 238 of file prescribedgradient.C.

◆ giveInputRecordName()

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

inlineoverridevirtual

Returns: Input record name of the receiver.

Reimplemented from oofem::BoundaryCondition.

Definition at line 114 of file prescribedgradient.h.

References _IFT_PrescribedGradient_Name.

◆ giveType()

bcType oofem::PrescribedGradient::giveType ( ) const

inlineoverridevirtual

Returns: Type of boundary condition. It allows to distinguish BC according its mathematical meaning, ie. like Dirichlet, Neumann, or Newton type.

Reimplemented from oofem::BoundaryCondition.

Definition at line 76 of file prescribedgradient.h.

References oofem::DirichletBT.

◆ initializeFrom()

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

overridevirtual

Initializes receiver according to object description stored in input record. The input record contains two fields;

gradient #rows #columns { d_11 d_12 ... ; d_21 ... } (required)
cCoords #columns x_1 x_2 ... (optional, default 0) The prescribed tensor's columns must be equal to the size of the center coordinates. The size of the center coordinates must be equal to the size of the coordinates in the applied nodes.

Reimplemented from oofem::BoundaryCondition.

Definition at line 231 of file prescribedgradient.C.

◆ scale()

void oofem::PrescribedGradient::scale ( double s )

inlineoverridevirtual

Scales the receiver according to given value. Typically used in nondimensional analysis to scale down BCs and ICs.

Parameters

s	Scale factor.

Reimplemented from oofem::BoundaryCondition.

Definition at line 111 of file prescribedgradient.h.

References oofem::PrescribedGradientHomogenization::mGradient.

◆ updateCoefficientMatrix()

void oofem::PrescribedGradient::updateCoefficientMatrix ( FloatMatrix & C )

virtual

Constructs a coefficient matrix for all prescribed unknowns. Helper routine for computational homogenization.

Todo: Perhaps this routine should only give results for the dof it prescribes?

Parameters

C	Coefficient matrix to fill.

Definition at line 96 of file prescribedgradient.C.

References oofem::Dof::__givePrescribedEquationNumber(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::GeneralBoundaryCondition::dofs, oofem::FEMComponent::domain, oofem::PrescribedGradientHomogenization::giveCenterCoordinate(), oofem::FEMComponent::giveDomain(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by computeField(), and computeTangent().

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PrescribedGradient()

◆ ~PrescribedGradient()

Member Function Documentation

◆ computeField()

◆ computeTangent()

◆ give()

◆ giveClassName()

◆ giveInputRecord()

◆ giveInputRecordName()

◆ giveType()

◆ initializeFrom()

◆ scale()

◆ updateCoefficientMatrix()