oofem::StructuralNonlocalMaterialExtensionInterface Class Referenceabstract
Abstract base class for all nonlocal structural materials. More...
#include <structuralnonlocalmaterialext.h>
Inheritance diagram for oofem::StructuralNonlocalMaterialExtensionInterface:
Collaboration diagram for oofem::StructuralNonlocalMaterialExtensionInterface:
Public Member Functions | |
| StructuralNonlocalMaterialExtensionInterface (Domain *d) | |
| Constructor. More... | |
| ~StructuralNonlocalMaterialExtensionInterface () | |
| Destructor. More... | |
| virtual void | updateBeforeNonlocAverage (const FloatArray &strainVector, GaussPoint *gp, TimeStep *tStep)=0 |
| Declares the service updating local variables in given integration points, which take part in nonlocal average process. More... | |
| Public Member Functions inherited from oofem::NonlocalMaterialExtensionInterface | |
| NonlocalMaterialExtensionInterface (Domain *d) | |
| Constructor. More... | |
| virtual | ~NonlocalMaterialExtensionInterface () |
| Destructor. More... | |
| void | updateDomainBeforeNonlocAverage (TimeStep *tStep) |
| Updates data in all integration points before nonlocal average takes place. More... | |
| void | buildNonlocalPointTable (GaussPoint *gp) |
| Builds list of integration points which take part in nonlocal average in given integration point. More... | |
| void | rebuildNonlocalPointTable (GaussPoint *gp, IntArray *contributingElems) |
| Rebuild list of integration points which take part in nonlocal average in given integration point. More... | |
| void | modifyNonlocalWeightFunctionAround (GaussPoint *gp) |
| Recompute the nonlocal interaction weights based on the current solution (e.g., on the damage field). More... | |
| void | modifyNonlocalWeightFunction_1D_Around (GaussPoint *gp) |
| virtual double | giveNonlocalMetricModifierAt (GaussPoint *gp) |
| Provide the current value of the variable that affects nonlocal interaction (e.g., of damage) This method is used e.g. More... | |
| double | computeDistanceModifier (double damage) |
| Compute the factor that specifies how the interaction length should be modified, based on the current solution (e.g., on the damage field). More... | |
| double | computeModifiedLength (double length, double dam1, double dam2) |
| Compute the modified interaction length based on the current solution (e.g., on the damage field). More... | |
| std::vector< localIntegrationRecord > * | giveIPIntegrationList (GaussPoint *gp) |
| Returns integration list corresponding to given integration point. More... | |
| virtual double | computeWeightFunction (double distance) |
| Evaluates the basic nonlocal weight function for a given distance between interacting points. More... | |
| virtual double | computeWeightFunction (const FloatArray &src, const FloatArray &coord) |
| Evaluates the basic nonlocal weight function for two points with given coordinates. More... | |
| double | giveIntegralOfWeightFunction (const int spatial_dimension) |
| Provides the integral of the weight function over the contributing volume in 1, 2 or 3D. More... | |
| virtual double | maxValueOfWeightFunction () |
| Determines the maximum value of the nonlocal weight function. More... | |
| int | giveNumberOfRegions () |
| Determines the number of material regions of domain. More... | |
| virtual int | hasBoundedSupport () |
| Determines, whether receiver has bounded weighting function (limited support). More... | |
| virtual double | evaluateSupportRadius () |
| Determines the width (radius) of limited support of weighting function. More... | |
| Domain * | giveDomain () |
| Returns reference to domain. More... | |
| IRResultType | initializeFrom (InputRecord *ir) |
| void | giveInputRecord (DynamicInputRecord &input) |
| Stores receiver in an input record. More... | |
| void | endIPNonlocalAverage (GaussPoint *gp) |
| Notifies the receiver, that the nonlocal averaging has been finished for given ip. More... | |
| Public Member Functions inherited from oofem::Interface | |
| Interface () | |
| Constructor. More... | |
| virtual | ~Interface () |
| virtual const char * | giveClassName () const =0 |
Additional Inherited Members | |
| Protected Types inherited from oofem::NonlocalMaterialExtensionInterface | |
| enum | WeightFunctionType { WFT_Unknown, WFT_Bell, WFT_Gauss, WFT_Green, WFT_Uniform, WFT_UniformOverElement, WFT_Green_21 } |
| Type characterizing the nonlocal weight function. More... | |
| enum | ScalingType { ST_Unknown, ST_Standard, ST_Noscaling, ST_Borino } |
| Type characterizing the scaling approach. More... | |
| enum | AveragedVarType { AVT_Unknown, AVT_EqStrain, AVT_Compliance, AVT_Damage } |
| Type characterizing the averaged (nonlocal) variable. More... | |
| enum | NlVariationType { NLVT_Standard, NLVT_DistanceBasedLinear, NLVT_StressBased, NLVT_DistanceBasedExponential } |
| Type characterizing the Nonlocal variation. More... | |
| Protected Member Functions inherited from oofem::NonlocalMaterialExtensionInterface | |
| void | applyBarrierConstraints (const FloatArray &gpCoords, const FloatArray &jGpCoords, double &weight) |
| void | manipulateWeight (double &weight, GaussPoint *gp, GaussPoint *jGp) |
| Manipulates weight on integration point in the element. More... | |
| double | giveDistanceBasedInteractionRadius (const FloatArray &gpCoords) |
| Provides the distance based interaction radius This function is called when nlvariation is set to 1. More... | |
| int | mapToGridPoint (double x, double x0) |
| double | mapToGridCoord (double x, double x0) |
| double | dist2FromGridNode (double x, double y, int j, int i) |
| Protected Attributes inherited from oofem::NonlocalMaterialExtensionInterface | |
| Domain * | domain |
| IntArray | regionMap |
| Map indicating regions to skip (region - cross section model). More... | |
| bool | permanentNonlocTableFlag |
| Flag indicating whether to keep nonlocal interaction tables of integration points cached. More... | |
| WeightFunctionType | weightFun |
| Parameter specifying the type of nonlocal weight function. More... | |
| int | gridSize |
| Grid on which the eikonal equation will be solved (used by eikonal nonlocal models) More... | |
| Grid * | grid |
| FloatMatrix * | minDist2 |
| Auxiliary matrix to store minimum distances of grid points from Gauss points. More... | |
| double | initDiag |
| Optional parameters setting details of the fast marching method. More... | |
| int | order |
| int | centDiff |
| double | cl |
| Characteristic length of the nonlocal model (its interpretation depends on the type of weight function). More... | |
| double | suprad |
| Support radius. More... | |
| double | mm |
| For "undernonlocal" or "overnonlocal" formulation. More... | |
| ScalingType | scaling |
| Parameter specifying the type of scaling of nonlocal weight function. More... | |
| AveragedVarType | averagedVar |
| Parameter specifying the type of averaged (nonlocal) variable. More... | |
| double | cl0 |
| Initial(user defined) characteristic length of the nonlocal model (its interpretation depends on the weight function) Is different to cl when a Stress-based or a Distance-based nonlocal variation is applied. More... | |
| NlVariationType | nlvar |
| Parameter specifying the type of nonlocal variation. More... | |
| double | beta |
| Parameter which multiplied with the interaction radius cl0 gives its minimum allowed value. More... | |
| double | zeta |
| Parameter used when Distance-based nonlocal variation is applied When it is multiplied with the interaction radius cl gives the maxinmum distance of the Gauss Point from the boundary. More... | |
| double | px |
| Parameter specifying the periodic shift in x-direction. More... | |
| double | Rf |
| Final value of interaction radius, for a model with evolving characteristic length. More... | |
| double | exponent |
| Parameter used as an exponent by models with evolving characteristic length. More... | |
| int | averType |
| Parameter specifying how the weight function should be adjusted due to damage. More... | |
Detailed Description
Abstract base class for all nonlocal structural materials.
Nonlocal in the sense that the response at a particular point depends not only on the state of that point, but also takes into account the state of surrounding points. The response typically depends on some nonlocal quantity obtained as weighted average over some characteristic volume. This class declares the necessary interface for all nonlocal structural constitutive models. It also stores the parameters needed for nonlocal averaging and provides services for evaluation of the weight function.
Definition at line 61 of file structuralnonlocalmaterialext.h.
Constructor & Destructor Documentation
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inline |
Constructor.
- Parameters
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d Domain to which new material will belong.
Definition at line 68 of file structuralnonlocalmaterialext.h.
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inline |
Destructor.
Definition at line 71 of file structuralnonlocalmaterialext.h.
Member Function Documentation
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pure virtual |
Declares the service updating local variables in given integration points, which take part in nonlocal average process.
Because value of single integration point influences nonlocal variables in several near integration points, it is suitable to compute these variables only once. These should be stored in integration point associated statuses. The implementation is left on derived classes. Provide material local strain increment - as is provided to computeRealStresVector. This allows to update internal vars to be averaged to new state
- Parameters
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strainVector Total strain vector in given integration point. gp Integration point to update. tStep Solution step indicating time of update.
Implemented in oofem::MDM, oofem::RankineMatNl, oofem::MisesMatNl, oofem::TrabBoneNL3D, oofem::IDNLMaterial, oofem::RCSDNLMaterial, oofem::FRCFCMNL, oofem::MazarsNLMaterial, oofem::TrabBoneNLEmbed, and oofem::TrabBoneNL.
Referenced by oofem::StructuralElement::updateBeforeNonlocalAverage().
The documentation for this class was generated from the following file: