OOFEM  2.4
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oofem::TransportGradientDirichlet Class Reference

Prescribes $ T = g_{i}(x_i-\bar{x}_i) $ where $ T $ are primary unknown. More...

#include <transportgradientdirichlet.h>

+ Inheritance diagram for oofem::TransportGradientDirichlet:
+ Collaboration diagram for oofem::TransportGradientDirichlet:

Public Member Functions

 TransportGradientDirichlet (int n, Domain *d)
 Creates boundary condition with given number, belonging to given domain. More...
virtual ~TransportGradientDirichlet ()
 Destructor. More...
virtual IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. More...
virtual void giveInputRecord (DynamicInputRecord &input)
 Setups the input record string of receiver. More...
virtual void postInitialize ()
 Performs post initialization steps. More...
virtual double give (Dof *dof, ValueModeType mode, double time)
virtual bcType giveType () const
double domainSize ()
void computeCoefficientMatrix (FloatMatrix &C)
 Constructs a coefficient matrix for all prescribed unknowns. More...
virtual void computeField (FloatArray &sigma, TimeStep *tStep)
 Computes the homogenized, macroscopic, field (stress). More...
virtual void computeTangent (FloatMatrix &tangent, TimeStep *tStep)
 Computes the macroscopic tangent for homogenization problems through sensitivity analysis. More...
void computeXi ()
 Computes the offset values for "improved" Dirichlet. See class description. More...
virtual void scale (double s)
 Scales the receiver according to given value. More...
virtual const char * giveClassName () const
virtual const char * giveInputRecordName () const
- Public Member Functions inherited from oofem::BoundaryCondition
 BoundaryCondition (int i, Domain *d)
 Constructor. More...
virtual ~BoundaryCondition ()
 Destructor. More...
virtual double give (Dof *dof, ValueModeType mode, TimeStep *tStep)
 Returns the value of a prescribed unknown, respecting requested mode for given time. More...
void setPrescribedValue (double s)
 Set prescribed value at the input record string of receiver. More...
virtual contextIOResultType saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Stores receiver state to output stream. More...
virtual contextIOResultType restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Restores the receiver state previously written in stream. More...
- Public Member Functions inherited from oofem::GeneralBoundaryCondition
 GeneralBoundaryCondition (int n, Domain *d)
 Constructor. More...
virtual ~GeneralBoundaryCondition ()
 Destructor. More...
int giveSetNumber ()
 Gives the set number which boundary condition is applied to. More...
virtual int giveNumberOfInternalDofManagers ()
 Gives the number of internal dof managers. More...
virtual DofManagergiveInternalDofManager (int i)
 Gives an internal dof manager from receiver. More...
FunctiongiveTimeFunction ()
virtual bcValType giveBCValType () const
 Returns receiver load type. More...
virtual bool isImposed (TimeStep *tStep)
 Returns nonzero if receiver representing BC is imposed at given time, otherwise returns zero. More...
virtual const IntArraygiveDofIDs () const
 Array with default dofs which b.c. More...
virtual bcGeomType giveBCGeoType () const
 Returns geometry character of boundary condition. More...
- Public Member Functions inherited from oofem::FEMComponent
 FEMComponent (int n, Domain *d)
 Regular constructor, creates component with given number and belonging to given domain. More...
virtual ~FEMComponent ()
 Virtual destructor. More...
DomaingiveDomain () const
virtual void setDomain (Domain *d)
 Sets associated Domain. More...
int giveNumber () const
void setNumber (int num)
 Sets number of receiver. More...
virtual void updateLocalNumbering (EntityRenumberingFunctor &f)
 Local renumbering support. More...
virtual int checkConsistency ()
 Allows programmer to test some internal data, before computation begins. More...
virtual void printOutputAt (FILE *file, TimeStep *tStep)
 Prints output of receiver to stream, for given time step. More...
virtual void printYourself ()
 Prints receiver state on stdout. Useful for debugging. More...
virtual InterfacegiveInterface (InterfaceType t)
 Interface requesting service. More...
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...

Protected Attributes

FloatArray mGradient
FloatArray mCenterCoord
bool tractionControl
std::map< int, FloatArrayxis
 Stores one "psi" value for each node. More...
IntArray surfSets
- Protected Attributes inherited from oofem::BoundaryCondition
FloatArray values
 Prescribed values for each resp. dof. More...
- Protected Attributes inherited from oofem::GeneralBoundaryCondition
int timeFunction
 Associated load time function. More...
bcValType valType
 Physical meaning of BC value. More...
IntArray dofs
 Dofs that b.c. is applied to (relevant for Dirichlet type b.c.s). More...
int isImposedTimeFunction
 Zero by default - the BC is than always imposed. More...
int set
 Set number for boundary condition to be applied to. More...
- Protected Attributes inherited from oofem::FEMComponent
int number
 Component number. More...
 Link to domain object, useful for communicating with other FEM components. More...

Detailed Description

Prescribes $ T = g_{i}(x_i-\bar{x}_i) $ where $ T $ are primary unknown.

This is typical boundary condition in multiscale analysis where $ g = \partial_x T $ would be 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 a given average gradient.

This class has optional support for the "psi" parameter, which is computed to improve the bounds for high permeable inclusions in a matrix. Using this parameter requires additional inputs, edgeSets and surfSets, which should be defined in the particular order. The numbering of the surface should be the same as for the hex cube interpolator as defined in the element reference manual.
Experimental code
Mikael Öhman

Definition at line 73 of file transportgradientdirichlet.h.

Constructor & Destructor Documentation

oofem::TransportGradientDirichlet::TransportGradientDirichlet ( int  n,
Domain d 

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

nBoundary condition number.
dDomain to which new object will belongs.

Definition at line 90 of file transportgradientdirichlet.h.

virtual oofem::TransportGradientDirichlet::~TransportGradientDirichlet ( )


Definition at line 93 of file transportgradientdirichlet.h.

Member Function Documentation

void oofem::TransportGradientDirichlet::computeCoefficientMatrix ( FloatMatrix C)
void oofem::TransportGradientDirichlet::computeField ( FloatArray sigma,
TimeStep tStep 
void oofem::TransportGradientDirichlet::computeXi ( )

Computes the offset values for "improved" Dirichlet. See class description.

Can't do this yet, problem with material model interface (doesn't know the GP material mode). This should be changed.
We can use the single constraint, but this assumes flat surfaces
Can't do this yet, problem with material model interface (doesn't know the GP material mode). This should be changed.

Definition at line 343 of file transportgradientdirichlet.C.

References oofem::FloatArray::add(), oofem::FloatMatrix::assemble(), oofem::FloatArray::assemble(), oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatArray::beProductOf(), oofem::FloatMatrix::beProductOf(), oofem::FloatArray::beScaled(), oofem::FloatArray::beTProductOf(), oofem::FloatMatrix::beTranspositionOf(), oofem::FEInterpolation3d::boundaryEdgeGiveNodes(), oofem::FEInterpolation3d::boundaryEdgeGiveTransformationJacobian(), oofem::FEInterpolation3d::boundaryEvalN(), oofem::FEInterpolation3d::boundaryEvalNormal(), oofem::FEInterpolation3d::boundaryGiveNodes(), oofem::classFactory, oofem::IntArray::containsSorted(), oofem::ClassFactory::createSparseLinSolver(), oofem::ClassFactory::createSparseMtrx(), oofem::FEMComponent::domain, oofem::FloatArray::dotProduct(), oofem::FEInterpolation3d::edgeEvaldNdxi(), oofem::IntArray::followedBy(), oofem::IntegrationRule::getIntegrationPoint(), oofem::FEInterpolation3d::giveBoundaryEdgeIntegrationRule(), oofem::FEInterpolation3d::giveBoundaryIntegrationRule(), oofem::Set::giveBoundaryList(), oofem::Node::giveCoordinates(), oofem::EngngModel::giveCurrentStep(), oofem::Element::giveDefaultIntegrationRulePtr(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveElement(), oofem::Domain::giveEngngModel(), oofem::Element::giveInterpolation(), oofem::FEInterpolation::giveInterpolationOrder(), oofem::Element::giveNode(), oofem::Set::giveNodeList(), oofem::FEMComponent::giveNumber(), oofem::FloatMatrix::giveNumberOfColumns(), oofem::FloatMatrix::giveNumberOfRows(), oofem::Domain::giveSet(), oofem::IntArray::giveSize(), oofem::FloatArray::giveSize(), oofem::IntArray::insertSortedOnce(), oofem::FloatMatrix::negated(), oofem::FloatArray::normalize(), OOFEM_LOG_INFO, oofem::FloatMatrix::plusDyadSymmUpper(), oofem::FloatMatrix::plusDyadUnsym(), oofem::FloatMatrix::plusProductSymmUpper(), oofem::IntArray::preallocate(), oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), oofem::Set::setEdgeList(), oofem::ST_Petsc, oofem::FEInterpolation3d::surfaceEvaldNdx(), surfSets, oofem::FloatMatrix::symmetrized(), oofem::FloatArray::times(), and xis.

Referenced by postInitialize().

virtual const char* oofem::TransportGradientDirichlet::giveClassName ( ) const
Class name of the receiver.

Reimplemented from oofem::BoundaryCondition.

Definition at line 131 of file transportgradientdirichlet.h.

void oofem::TransportGradientDirichlet::giveInputRecord ( DynamicInputRecord input)
virtual const char* oofem::TransportGradientDirichlet::giveInputRecordName ( ) const
Input record name of the receiver.

Reimplemented from oofem::BoundaryCondition.

Definition at line 132 of file transportgradientdirichlet.h.

References _IFT_TransportGradientDirichlet_Name.

virtual bcType oofem::TransportGradientDirichlet::giveType ( ) const
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 101 of file transportgradientdirichlet.h.

References oofem::DirichletBT.

IRResultType oofem::TransportGradientDirichlet::initializeFrom ( InputRecord ir)

Initializes receiver according to object description stored in input record.

This function is called immediately after creating object using constructor. Input record 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.

See also
irInput record to initialize from.

Reimplemented from oofem::BoundaryCondition.

Definition at line 71 of file transportgradientdirichlet.C.

References _IFT_TransportGradientDirichlet_centerCoords, _IFT_TransportGradientDirichlet_gradient, _IFT_TransportGradientDirichlet_surfSets, _IFT_TransportGradientDirichlet_tractionControl, oofem::InputRecord::hasField(), oofem::GeneralBoundaryCondition::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, mCenterCoord, mGradient, oofem::FloatArray::resize(), surfSets, and tractionControl.

void oofem::TransportGradientDirichlet::postInitialize ( )

Performs post initialization steps.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 103 of file transportgradientdirichlet.C.

References computeXi(), oofem::GeneralBoundaryCondition::postInitialize(), and tractionControl.

virtual void oofem::TransportGradientDirichlet::scale ( double  s)

Scales the receiver according to given value.

Typically used in nondimensional analysis to scale down BCs and ICs.

sScale factor.

Reimplemented from oofem::BoundaryCondition.

Definition at line 129 of file transportgradientdirichlet.h.

References oofem::FloatArray::times().

Member Data Documentation

FloatArray oofem::TransportGradientDirichlet::mCenterCoord
FloatArray oofem::TransportGradientDirichlet::mGradient

Definition at line 76 of file transportgradientdirichlet.h.

Referenced by give(), giveInputRecord(), and initializeFrom().

IntArray oofem::TransportGradientDirichlet::surfSets
bool oofem::TransportGradientDirichlet::tractionControl
std :: map< int, FloatArray > oofem::TransportGradientDirichlet::xis

Stores one "psi" value for each node.

Definition at line 81 of file transportgradientdirichlet.h.

Referenced by computeCoefficientMatrix(), computeXi(), and give().

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

This page is part of the OOFEM documentation. Copyright (c) 2011 Borek Patzak
Project e-mail: info@oofem.org
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