This class implements a FRCFCM material (Fiber Reinforced Concrete base on Fixed Crack Model) in a finite element problem. More...

#include <frcfcm.h>

Inheritance diagram for oofem::FRCFCM:

Collaboration diagram for oofem::FRCFCM:

Public Member Functions
	FRCFCM (int n, Domain *d)

virtual	~FRCFCM ()

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

virtual MaterialStatus *	CreateStatus (GaussPoint *gp) const
	Creates new copy of associated status and inserts it into given integration point. More...

virtual int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep)
	Returns the integration point corresponding value in Reduced form. More...

Public Member Functions inherited from oofem::ConcreteFCM
	ConcreteFCM (int n, Domain *d)

virtual	~ConcreteFCM ()

virtual int	hasNonLinearBehaviour ()
	Returns nonzero if receiver is non linear. More...

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

virtual double	give (int aProperty, GaussPoint *gp)
	Returns the value of material property 'aProperty'. More...

virtual MaterialStatus *	giveStatus (GaussPoint *gp) const
	Returns material status of receiver in given integration point. More...

Public Member Functions inherited from oofem::FCMMaterial
	FCMMaterial (int n, Domain *d)

virtual	~FCMMaterial ()

virtual int	hasMaterialModeCapability (MaterialMode mode)
	Tests if material supports material mode. More...

IsotropicLinearElasticMaterial *	giveLinearElasticMaterial ()

virtual void	give3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point. More...

virtual void	givePlaneStressStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing plane stress stiffness matrix of receiver. More...

virtual void	givePlaneStrainStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing plane strain stiffness matrix of receiver. More...

virtual void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Computes the real stress vector for given total strain and integration point. More...

virtual void	initializeCrack (GaussPoint *gp, FloatMatrix &base, int nCrack)

virtual void	giveRealStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...

virtual void	giveRealStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_3d. More...

virtual void	giveRealStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_2dBeamLayer (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_PlateLayer (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual double	computeNormalCrackOpening (GaussPoint *gp, int i)
	uses temporary cracking strain and characteristic length to obtain the crack opening More...

virtual double	computeMaxNormalCrackOpening (GaussPoint *gp, int i)
	uses maximum equilibrated cracking strain and characteristic length to obtain the maximum reached crack opening More...

virtual double	computeShearSlipOnCrack (GaussPoint *gp, int i)
	computes total shear slip on a given crack plane (i = 1, 2, 3); the slip is computed from the temporary cracking strain More...

Public Member Functions inherited from oofem::StructuralMaterial
	StructuralMaterial (int n, Domain *d)
	Constructor. More...

virtual	~StructuralMaterial ()
	Destructor. More...

virtual void	giveInputRecord (DynamicInputRecord &input)
	Setups the input record string of receiver. More...

virtual void	giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the stiffness matrix for giveRealStressVector of receiver in given integration point, respecting its history. More...

virtual void	giveRealStressVector_StressControl (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep tStep)
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero· More...

virtual void	giveRealStressVector_ShellStressControl (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep tStep)

virtual void	giveRealStressVector_Warping (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_Fiber (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_Lattice2d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

virtual void	giveRealStressVector_Lattice3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

virtual void	giveRealStressVector_2dPlateSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation is not provided. More...

virtual void	giveRealStressVector_3dBeamSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

virtual void	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Prototype for computation of Eshelby stress. More...

void	give_dPdF_from (const FloatMatrix &dSdE, FloatMatrix &answer, GaussPoint *gp)

void	convert_dSdE_2_dPdF (FloatMatrix &answer, const FloatMatrix &dSdE, const FloatArray &S, const FloatArray &F, MaterialMode matMode)

virtual void	giveThermalDilatationVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis. More...

double	giveReferenceTemperature ()
	Returns the reference temperature of receiver. More...

virtual void	computeStressIndependentStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)
	Computes reduced strain vector in given integration point, generated by internal processes in material, which are independent on loading in particular integration point. More...

virtual void	computeStressIndependentStrainVector_3d (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)

virtual void	give3dMaterialStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

virtual void	give3dMaterialStiffnessMatrix_dCde (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

void	giveStressDependentPartOfStrainVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrainVector, TimeStep tStep, ValueModeType mode)
	Method for subtracting from reduced space strain vector its stress-independent parts (caused by temperature, shrinkage, creep and possibly by other phenomena). More...

void	giveStressDependentPartOfStrainVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrainVector, TimeStep tStep, ValueModeType mode)

virtual int	setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type)
	Sets the value of a certain variable at a given integration point to the given value. More...

virtual void	give2dBeamLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d beam layer stiffness matrix of receiver. More...

virtual void	givePlateLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d plate layer stiffness matrix of receiver. More...

virtual void	giveFiberStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 1d fiber stiffness matrix of receiver. More...

virtual void	give2dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d lattice stiffness matrix of receiver. More...

virtual void	give3dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 3d lattice stiffness matrix of receiver. More...

virtual void	give2dPlateSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing stiffness matrix of plate subsoil model. More...

virtual void	give3dBeamSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing stiffness matrix of beam3d subsoil model. More...

virtual void	giveFirstPKStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...

virtual void	giveFirstPKStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveFirstPKStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveFirstPKStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveCauchyStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	givePlaneStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStrainStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	give1dStressStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 1d stiffness matrix of receiver. More...

virtual void	give1dStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

Public Member Functions inherited from oofem::Material
	Material (int n, Domain *d)
	Constructor. More...

virtual	~Material ()
	Destructor. More...

virtual bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode)
	Returns true if stiffness matrix of receiver is symmetric Default implementation returns true. More...

virtual bool	hasProperty (int aProperty, GaussPoint *gp)
	Returns true if 'aProperty' exists on material. More...

virtual void	modifyProperty (int aProperty, double value, GaussPoint *gp)
	Modify 'aProperty', which already exists on material. More...

double	giveCastingTime ()

virtual bool	isActivated (TimeStep *tStep)

virtual int	hasCastingTimeSupport ()
	Tests if material supports casting time. More...

virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. More...

virtual contextIOResultType	saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Stores integration point state to output stream. More...

virtual contextIOResultType	restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Reads integration point state to output stream. More...

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

virtual int	initMaterial (Element *element)
	Optional function to call specific procedures when initializing a material. More...

virtual int	packUnknowns (DataStream &buff, TimeStep tStep, GaussPoint ip)
	Pack all necessary data of integration point (according to element parallel_mode) into given communication buffer. More...

virtual int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep tStep, GaussPoint ip)
	Unpack and updates all necessary data of given integration point (according to element parallel_mode) into given communication buffer. More...

virtual int	estimatePackSize (DataStream &buff, GaussPoint *ip)
	Estimates the necessary pack size to hold all packed data of receiver. More...

virtual double	predictRelativeComputationalCost (GaussPoint *gp)
	Returns the weight representing relative computational cost of receiver The reference material model is linear isotropic material - its weight is set to 1.0 The other material models should compare to this reference model. More...

virtual double	predictRelativeRedistributionCost (GaussPoint *gp)
	Returns the relative redistribution cost of the receiver. More...

virtual void	initTempStatus (GaussPoint *gp)
	Initializes temporary variables stored in integration point status at the beginning of new time step. 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...

Domain *	giveDomain () 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 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...

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

virtual Interface *	giveInterface (InterfaceType t)
	Interface requesting service. More...

std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros). More...

Public Member Functions inherited from oofem::RandomMaterialExtensionInterface
	RandomMaterialExtensionInterface ()
	Constructor. More...

virtual	~RandomMaterialExtensionInterface ()
	Destructor. More...

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

void	giveInputRecord (DynamicInputRecord &ir)

bool	give (int key, GaussPoint *gp, double &value)
	Returns the property in associated status of given integration point if defined. More...

Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor. More...

virtual	~Interface ()

Protected Types
enum	FiberShearStrengthType { FSS_NONE, FSS_Sajdlova, FSS_Kabele, FSS_Havlasek, FSS_Unknown }
	Type strength of the shear bond. More...

enum	FiberDamageType { FDAM_NONE, FDAM_GammaCrackLin, FDAM_GammaCrackExp, FDAM_Unknown }
	Type of fibre damage which is triggered by crack shearing strain = w / u. More...

enum	FiberType { FT_CAF, FT_SAF, FT_SRF, FT_Unknown }
	Type fo fibers in the composite. More...

Protected Types inherited from oofem::ConcreteFCM
enum	SofteningType { ST_NONE, ST_Exponential, ST_Linear, ST_Hordijk, ST_UserDefinedCrack, ST_LinearHardeningStrain, ST_UserDefinedStrain, ST_Unknown }
	type of post-peak behavior in the normal direction to the crack plane More...

enum	ShearRetentionType { SHR_NONE, SHR_Const_ShearRetFactor, SHR_Const_ShearFactorCoeff, SHR_UserDefined_ShearRetFactor, SHR_Unknown }
	type of reduction of the shear stiffness caused by cracking More...

enum	ShearStrengthType { SHS_NONE, SHS_Const_Ft, SHS_Collins_Interlock, SHS_Unknown }
	defines the maximum value of shear stress More...

Protected Member Functions
virtual double	giveCrackingModulus (MatResponseMode rMode, GaussPoint *gp, int i)
	returns stiffness in the normal direction of the i-th crack More...

virtual double	computeFiberBond (double w)
	evaluates the fiber bond if w > w* More...

virtual double	giveNormalCrackingStress (GaussPoint *gp, double eps_cr, int i)
	computes normal stress associated with i-th crack direction More...

virtual double	computeStressInFibersInCracked (GaussPoint *gp, double eps_cr, int i)
	compute the nominal stress in fibers in the i-th crack More...

virtual double	computeEffectiveShearModulus (GaussPoint *gp, int i)
	returns Geff which is necessary in the global stiffness matrix More...

virtual double	computeD2ModulusForCrack (GaussPoint *gp, int icrack)
	shear modulus for a given crack plane (1, 2, 3) More...

virtual double	estimateD2ModulusForCrack (GaussPoint *gp, int icrack)
	estimate shear modulus for a given crack plane (1, 2, 3). Uses equilibrated value of damage. More...

virtual double	maxShearStress (GaussPoint *gp, int i)
	computes the maximum value of the shear stress; if the shear stress exceeds this value, it is cropped More...

virtual double	computeTempDamage (GaussPoint *gp)
	evaluates temporary value of damage caused by fibre shearing More...

virtual double	computeCrackSpacing (void)
	computes crack spacing based on composition of the fibre composite More...

virtual double	computeCrackFibreAngle (GaussPoint *gp, int i)
	compute the angle between the fibre and i-th crack normal More...

virtual void	checkSnapBack (GaussPoint *gp, int crack)
	overrides real checking from concretefcm.C, here we assume that the fibers provide sufficient strength to prevent snapback More...

virtual bool	isStrengthExceeded (const FloatMatrix &base, GaussPoint gp, TimeStep tStep, int iCrack, double trialStress)
	the method from fcm is overridden to consider stress split between the matrix and fibers More...

virtual double	computeShearStiffnessRedistributionFactor (GaussPoint *gp, int ithCrackPlane, int jthCrackDirection)
	function calculating ratio used to split shear slips on two crack planes More...

virtual double	computeOverallElasticStiffness (void)
	according to the volume fraction of fibers and the Young's moduli estimates the overall stiffness of the composite More...

virtual double	computeOverallElasticShearModulus (void)
	from the Poisson's ratio of matrix and the overall stiffness estimates G More...

Protected Member Functions inherited from oofem::ConcreteFCM
virtual double	giveTensileStrength (GaussPoint *gp)
	returns tensile strength (can be random) More...

virtual double	giveFractureEnergy (GaussPoint *gp)
	returns fracture energy (can be random) More...

Protected Member Functions inherited from oofem::FCMMaterial
virtual void	updateCrackStatus (GaussPoint *gp)
	updates crack statuses More...

virtual double	giveCharacteristicElementLength (GaussPoint *gp, const FloatArray &crackPlaneNormal)
	returns characteristic element length in given direction More...

virtual double	computeTotalD2Modulus (GaussPoint *gp, int i)
	shear modulus for a given shear direction (4, 5, 6) More...

virtual bool	isIntactForShear (GaussPoint *gp, int i)
	returns true for closed or no cracks associated to given shear direction (i = 4, 5, 6) More...

virtual bool	isIntact (GaussPoint *gp, int icrack)
	returns true for closed or no crack (i = 1, 2, 3) More...

virtual bool	checkStrengthCriterion (FloatMatrix &newBase, const FloatArray &globalStress, GaussPoint gp, TimeStep tStep, int nCrack)
	checks if the globalStress does not exceed strength in the direction of newBase for n-th crack More...

virtual double	giveCrackSpacing (void)
	returns either user-provided value of crack spacing or a value computed from composition More...

virtual double	giveNumberOfCracksInDirection (GaussPoint *gp, int iCrack)
	returns number of fictiotious parallel cracks in the direction of i-th crack More...

virtual double	giveNumberOfCracksForShearDirection (GaussPoint *gp, int i)
	returns number of cracks for given shear direction (i = 4, 5, 6) which is treated as the maximum of the two associated normal directions More...

virtual void	giveMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep)

virtual void	giveLocalCrackedStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, GaussPoint gp, TimeStep tStep)
	returns local stiffness matrix of the crack More...

Protected Member Functions inherited from oofem::RandomMaterialExtensionInterface
void	_generateStatusVariables (GaussPoint *) const
	Sets up (generates) the variables identified in randVariables array using generators given in randomVariableGenerators and stores them in given status. More...

Protected Attributes
double	tau_0
	fiber shear strength at zero slip More...

double	b0
	micromechanical parameter for fiber shear according to Sajdlova More...

double	b1
	micromechanical parameter for fiber shear according to Kabele More...

double	b2

double	b3

double	f
	snubbing factor "f" More...

double	g
	auxiliary parameter computed from snubbing factor "f" More...

double	Vf
	volume fraction of fibers More...

double	Lf
	fiber length More...

double	Df
	fiber diameter More...

double	Ef
	fiber Young's modulus More...

double	Gfib
	fiber shear modulus More...

double	kfib
	fiber cross-sectional shear factor More...

double	w_star
	transitional opening More...

double	eta
	aux. factor More...

double	gammaCrackFail
	shear strain at full fibers rupture More...

double	minDamageOpening
	minimum opening at which damage can start More...

int	M
	Exponent in the unloading-reloading constitutive law. More...

FloatArray	orientationVector
	orientation of fibres More...

double	fibreActivationOpening
	crack opening at which the crossing fibers begin to be activated More...

double	dw0
	smooth transition of the bridging stress if fibreActivationOpening is applied dw0 = distance from the fibreActivationOpening where the smooth transition starts dw1 = distance from the fibreActivationOpening where the smooth transition ends smoothen = flag More...

double	dw1

bool	smoothen

FiberShearStrengthType	fiberShearStrengthType

FiberDamageType	fiberDamageType

FiberType	fiberType

Protected Attributes inherited from oofem::ConcreteFCM
double	Gf
	Fracture energy. More...

double	Ft
	Tensile strenght. More...

double	beta
	shear retention factor More...

double	sf
	shear factor More...

double	fc
	Collins' aggregate interlock: compressive strength in MPa. More...

double	ag
	Collins' aggregate interlock: aggregate diameter in appropriate units (same as FE mesh) More...

double	lengthScale
	Collins' aggregate interlock: 1 for meter, 1000 for analysis in mm. More...

FloatArray	soft_w
	user-defined softening (traction-COD) More...

FloatArray	soft_function_w

FloatArray	soft_eps
	user-defined softening (traction-strain) More...

FloatArray	soft_function_eps

FloatArray	beta_w
	user-defined shear retention factor (with respect to crack opening) More...

FloatArray	beta_function

double	H
	hardening modulus More...

double	eps_f
	strain at failure More...

SofteningType	softType

ShearRetentionType	shearType

ShearStrengthType	shearStrengthType

Protected Attributes inherited from oofem::FCMMaterial
IsotropicLinearElasticMaterial *	linearElasticMaterial

int	nAllowedCracks
	allowed number of cracks (user-defined) More...

ElementCharSizeMethod	ecsMethod
	Method used for evaluation of characteristic element size. More...

bool	multipleCrackShear
	if true = takes shear compliance of all cracks, false = only dominant crack contribution, default value is false More...

double	crackSpacing
	value of crack spacing (allows to "have" more parallel cracks in one direction if the element size exceeds user-defined or computed crack spacing). More...

Protected Attributes inherited from oofem::StructuralMaterial
double	referenceTemperature
	Reference temperature (temperature, when material has been built into structure). More...

Protected Attributes inherited from oofem::Material
Dictionary	propertyDictionary
	Property dictionary. More...

double	castingTime
	Casting time. More...

Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number. More...

Domain *	domain
	Link to domain object, useful for communicating with other FEM components. More...

Protected Attributes inherited from oofem::RandomMaterialExtensionInterface
IntArray	randVariables
	Array of randomized variables (identified by a key). More...

IntArray	randomVariableGenerators
	Array of generators id's for corresponding randomized variables. More...

Additional Inherited Members
Static Public Member Functions inherited from oofem::StructuralMaterial
static int	giveSymVI (int ind1, int ind2)

static int	giveVI (int ind1, int ind2)

static int	giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
	Returns a mask of the vector indicies corresponding to components in a general (non-symmetric) second order tensor of some stress/strain/deformation measure that performes work. More...

static int	giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
	The same as giveVoigtVectorMask but returns a mask corresponding to a symmetric second order tensor. More...

static void	giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
	Gives the inverted version of giveVoigtVectorMask. More...

static int	giveSizeOfVoigtVector (MaterialMode mmode)
	Returns the size of reduced stress/strain vector according to given mode. More...

static int	giveSizeOfVoigtSymVector (MaterialMode mmode)
	Returns the size of symmetric part of a reduced stress/strain vector according to given mode. More...

static void	giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced symmetric Voigt vector (2nd order tensor) to full form. More...

static void	giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced deformation gradient Voigt vector (2nd order tensor). More...

static void	giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form. More...

static void	giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full symmetric Voigt vector (2nd order tensor) to reduced form. More...

static void	giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form. More...

static void	giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full symmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	transformStrainVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &strainVector, bool transpose=false)
	Transforms 3d strain vector into another coordinate system. More...

static void	transformStressVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &stressVector, bool transpose=false)
	Transforms 3d stress vector into another coordinate system. More...

static double	computeVonMisesStress (const FloatArray *currentStress)
	Computes equivalent of von Mises stress. More...

static void	giveStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 3d strain vector transformation matrix from standard vector transformation matrix. More...

static void	give2DStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 2d strain vector transformation matrix from standard vector transformation matrix. More...

static void	giveStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 3d stress vector transformation matrix from standard vector transformation matrix. More...

static void	givePlaneStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 2d stress vector transformation matrix from standard vector transformation matrix. More...

static void	sortPrincDirAndValCloseTo (FloatArray pVal, FloatMatrix pDir, FloatMatrix *toPDir)
	Method for sorting newly computed principal values (pVal) and corresponding principal directions (pDir) to be closed to some (often previous) principal directions (toPDir). More...

static void	computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
	Common functions for convenience. More...

static void	computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
	Computes principal values and directions of stress or strain vector. More...

static double	computeDeviatoricVolumetricSplit (FloatArray &dev, const FloatArray &s)
	Computes split of receiver into deviatoric and volumetric part. More...

static void	computeDeviatoricVolumetricSum (FloatArray &s, const FloatArray &dev, double mean)

static void	applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)

static void	applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double GModulus)

static void	applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)

static void	applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double GModulus)

static void	applyElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)

static void	applyElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)

static double	computeStressNorm (const FloatArray &stress)

static double	computeFirstInvariant (const FloatArray &s)

static double	computeSecondStressInvariant (const FloatArray &s)

static double	computeThirdStressInvariant (const FloatArray &s)

static double	computeFirstCoordinate (const FloatArray &s)

static double	computeSecondCoordinate (const FloatArray &s)

static double	computeThirdCoordinate (const FloatArray &s)

Static Public Attributes inherited from oofem::StructuralMaterial
static std::vector< std::vector< int > >	vIindex
	Voigt index map. More...

static std::vector< std::vector< int > >	svIndex
	Symmetric Voigt index map. More...

Detailed Description

This class implements a FRCFCM material (Fiber Reinforced Concrete base on Fixed Crack Model) in a finite element problem.

This class provides an extension to the ConcreteFCM which serves as a material model for matrix while the present class FRCFCM adds the contribution of fibers

Definition at line 113 of file frcfcm.h.

Member Enumeration Documentation

enum oofem::FRCFCM::FiberDamageType

protected

Type of fibre damage which is triggered by crack shearing strain = w / u.

Enumerator
FDAM_NONE
FDAM_GammaCrackLin
FDAM_GammaCrackExp
FDAM_Unknown

Definition at line 203 of file frcfcm.h.

enum oofem::FRCFCM::FiberShearStrengthType

protected

Type strength of the shear bond.

This is activated only for short fibers (SAF or SRF) once the maximum crack opening exceeds w*

Enumerator
FSS_NONE
FSS_Sajdlova
FSS_Kabele
FSS_Havlasek
FSS_Unknown

Definition at line 199 of file frcfcm.h.

enum oofem::FRCFCM::FiberType

protected

Type fo fibers in the composite.

CAF = continuous aligned fibers SAF = short aligned fibers SRF = short random fibers

Enumerator
FT_CAF
FT_SAF
FT_SRF
FT_Unknown

Definition at line 212 of file frcfcm.h.

Constructor & Destructor Documentation

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

Definition at line 45 of file frcfcm.C.

References fiberShearStrengthType, and FSS_Unknown.

virtual oofem::FRCFCM::~FRCFCM ( )

inlinevirtual

Definition at line 117 of file frcfcm.h.

References oofem::MaterialStatus::initializeFrom().

Member Function Documentation

virtual void oofem::FRCFCM::checkSnapBack	(	GaussPoint *	gp,
		int	crack
	)

inlineprotectedvirtual

overrides real checking from concretefcm.C, here we assume that the fibers provide sufficient strength to prevent snapback

Reimplemented from oofem::ConcreteFCM.

Definition at line 238 of file frcfcm.h.

double oofem::FRCFCM::computeCrackFibreAngle	(	GaussPoint *	gp,
		int	i
	)

protectedvirtual

compute the angle between the fibre and i-th crack normal

Definition at line 265 of file frcfcm.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FCMMaterialStatus::giveCrackDirs(), oofem::FloatMatrix::giveNumberOfRows(), oofem::FloatArray::giveSize(), oofem::ConcreteFCM::giveStatus(), M_PI, oofem::min(), and orientationVector.

Referenced by computeD2ModulusForCrack(), oofem::FRCFCMNL::computeNonlocalStressInFibers(), oofem::FRCFCMNL::computeNonlocalStressInFibersInUncracked(), computeStressInFibersInCracked(), estimateD2ModulusForCrack(), giveCrackingModulus(), and maxShearStress().

double oofem::FRCFCM::computeCrackSpacing ( void )

protectedvirtual

computes crack spacing based on composition of the fibre composite

Definition at line 990 of file frcfcm.C.

References Df, f, fiberType, oofem::ConcreteFCM::Ft, FT_CAF, FT_SAF, FT_SRF, Lf, M_PI, OOFEM_ERROR, tau_0, and Vf.

Referenced by initializeFrom().

double oofem::FRCFCM::computeD2ModulusForCrack	(	GaussPoint *	gp,
		int	icrack
	)

protectedvirtual

shear modulus for a given crack plane (1, 2, 3)

Reimplemented from oofem::ConcreteFCM.

Definition at line 800 of file frcfcm.C.

References computeCrackFibreAngle(), oofem::ConcreteFCM::computeD2ModulusForCrack(), computeTempDamage(), E, fcm_BIGNUMBER, fiberType, FT_CAF, FT_SAF, Gfib, oofem::FCMMaterial::giveLinearElasticMaterial(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterialStatus::giveTempMaxCrackStrain(), oofem::IsotropicLinearElasticMaterial::giveYoungsModulus(), oofem::FCMMaterial::isIntact(), kfib, oofem::min(), and Vf.

Referenced by computeEffectiveShearModulus().

double oofem::FRCFCM::computeEffectiveShearModulus	(	GaussPoint *	gp,
		int	i
	)

protectedvirtual

returns Geff which is necessary in the global stiffness matrix

Reimplemented from oofem::ConcreteFCM.

Definition at line 742 of file frcfcm.C.

References computeD2ModulusForCrack(), computeOverallElasticShearModulus(), oofem::FCMMaterial::isIntact(), oofem::FCMMaterial::isIntactForShear(), oofem::min(), oofem::FCMMaterial::multipleCrackShear, OOFEM_ERROR, oofem::ConcreteFCM::shearType, and oofem::ConcreteFCM::SHR_NONE.

double oofem::FRCFCM::computeFiberBond ( double w )

protectedvirtual

evaluates the fiber bond if w > w*

Definition at line 526 of file frcfcm.C.

References b0, b1, b2, b3, Df, Ef, eta, fiberShearStrengthType, fiberType, FSS_Havlasek, FSS_Kabele, FSS_NONE, FSS_Sajdlova, FT_CAF, FT_SRF, Lf, OOFEM_ERROR, oofem::sgn(), tau_0, and w_star.

Referenced by oofem::FRCFCMNL::computeDecreaseInFibreStress(), computeStressInFibersInCracked(), and giveCrackingModulus().

virtual double oofem::FRCFCM::computeOverallElasticShearModulus ( void )

inlineprotectedvirtual

from the Poisson's ratio of matrix and the overall stiffness estimates G

Reimplemented from oofem::FCMMaterial.

Definition at line 246 of file frcfcm.h.

Referenced by computeEffectiveShearModulus().

double oofem::FRCFCM::computeOverallElasticStiffness ( void )

protectedvirtual

according to the volume fraction of fibers and the Young's moduli estimates the overall stiffness of the composite

Reimplemented from oofem::FCMMaterial.

Definition at line 1074 of file frcfcm.C.

References Ef, fiberType, FT_CAF, FT_SAF, FT_SRF, oofem::FCMMaterial::giveLinearElasticMaterial(), oofem::IsotropicLinearElasticMaterial::giveYoungsModulus(), OOFEM_ERROR, and Vf.

double oofem::FRCFCM::computeShearStiffnessRedistributionFactor	(	GaussPoint *	gp,
		int	ithCrackPlane,
		int	jthCrackDirection
	)

protectedvirtual

function calculating ratio used to split shear slips on two crack planes

Reimplemented from oofem::FCMMaterial.

Definition at line 1038 of file frcfcm.C.

References estimateD2ModulusForCrack().

double oofem::FRCFCM::computeStressInFibersInCracked	(	GaussPoint *	gp,
		double	eps_cr,
		int	i
	)

protectedvirtual

compute the nominal stress in fibers in the i-th crack

Definition at line 580 of file frcfcm.C.

References computeCrackFibreAngle(), computeFiberBond(), computeTempDamage(), Df, dw0, dw1, Ef, eta, f, fiberType, fibreActivationOpening, FT_CAF, FT_SAF, FT_SRF, g, oofem::FCMMaterialStatus::giveCharLength(), oofem::FCMMaterialStatus::giveMaxCrackStrain(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterialStatus::giveTempCrackStatus(), Lf, M, oofem::max(), OOFEM_ERROR, pscm_NONE, smoothen, tau_0, Vf, and w_star.

Referenced by giveCrackingModulus(), giveIPValue(), giveNormalCrackingStress(), and oofem::FRCFCMNL::giveRealStressVector().

double oofem::FRCFCM::computeTempDamage ( GaussPoint * gp )

protectedvirtual

evaluates temporary value of damage caused by fibre shearing

Definition at line 868 of file frcfcm.C.

References oofem::FCMMaterial::computeMaxNormalCrackOpening(), oofem::FCMMaterial::computeShearSlipOnCrack(), FDAM_GammaCrackExp, FDAM_GammaCrackLin, FDAM_NONE, fiberDamageType, fibreActivationOpening, gammaCrackFail, oofem::FRCFCMStatus::giveDamage(), oofem::GaussPoint::giveElement(), oofem::FEMComponent::giveNumber(), oofem::FCMMaterialStatus::giveNumberOfTempCracks(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterial::isIntact(), oofem::max(), oofem::min(), OOFEM_ERROR, OOFEM_WARNING, and oofem::FRCFCMStatus::setTempDamage().

Referenced by computeD2ModulusForCrack(), computeStressInFibersInCracked(), giveCrackingModulus(), and maxShearStress().

virtual MaterialStatus* oofem::FRCFCM::CreateStatus ( GaussPoint * gp ) const

inlinevirtual

Creates new copy of associated status and inserts it into given integration point.

Parameters

gp	Integration point where newly created status will be stored.

Returns: Reference to new status.

Reimplemented from oofem::ConcreteFCM.

Reimplemented in oofem::FRCFCMNL.

Definition at line 122 of file frcfcm.h.

References oofem::FEMComponent::domain, oofem::FRCFCMStatus::FRCFCMStatus(), and oofem::IntegrationPointStatus::gp.

double oofem::FRCFCM::estimateD2ModulusForCrack	(	GaussPoint *	gp,
		int	icrack
	)

protectedvirtual

estimate shear modulus for a given crack plane (1, 2, 3). Uses equilibrated value of damage.

Definition at line 834 of file frcfcm.C.

References computeCrackFibreAngle(), oofem::ConcreteFCM::computeD2ModulusForCrack(), E, fcm_BIGNUMBER, fiberType, FT_CAF, FT_SAF, Gfib, oofem::FRCFCMStatus::giveDamage(), oofem::FCMMaterial::giveLinearElasticMaterial(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterialStatus::giveTempMaxCrackStrain(), oofem::IsotropicLinearElasticMaterial::giveYoungsModulus(), oofem::FCMMaterial::isIntact(), kfib, oofem::min(), and Vf.

Referenced by computeShearStiffnessRedistributionFactor().

double oofem::FRCFCM::giveCrackingModulus	(	MatResponseMode	rMode,
		GaussPoint *	gp,
		int	i
	)

protectedvirtual

returns stiffness in the normal direction of the i-th crack

Reimplemented from oofem::ConcreteFCM.

Definition at line 297 of file frcfcm.C.

References computeCrackFibreAngle(), computeFiberBond(), computeStressInFibersInCracked(), computeTempDamage(), Df, dw0, dw1, Ef, eta, f, fiberType, fibreActivationOpening, FT_CAF, FT_SAF, FT_SRF, g, oofem::FCMMaterialStatus::giveCharLength(), oofem::ConcreteFCM::giveCrackingModulus(), oofem::FCMMaterialStatus::giveMaxCrackStrain(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterialStatus::giveTempCrackStatus(), oofem::FCMMaterialStatus::giveTempCrackStrain(), Lf, M, oofem::max(), OOFEM_ERROR, pscm_NONE, smoothen, tau_0, Vf, and w_star.

int oofem::FRCFCM::giveIPValue	(	FloatArray &	answer,
		GaussPoint *	gp,
		InternalStateType	type,
		TimeStep *	tStep
	)

virtual

Returns the integration point corresponding value in Reduced form.

Parameters

answer	Contain corresponding ip value, zero sized if not available.
gp	Integration point to which the value refers.
type	Determines the type of internal variable.
tStep	Determines the time step.

Returns: Nonzero if the assignment can be done, zero if this type of variable is not supported.

Reimplemented from oofem::ConcreteFCM.

Reimplemented in oofem::FRCFCMNL.

Definition at line 1053 of file frcfcm.C.

References oofem::FloatArray::at(), computeStressInFibersInCracked(), oofem::FCMMaterialStatus::giveCrackStrain(), oofem::FRCFCMStatus::giveDamage(), oofem::ConcreteFCM::giveIPValue(), oofem::ConcreteFCM::giveStatus(), and oofem::FloatArray::resize().

Referenced by oofem::FRCFCMNL::giveIPValue().

double oofem::FRCFCM::giveNormalCrackingStress	(	GaussPoint *	gp,
		double	eps_cr,
		int	i
	)

protectedvirtual

computes normal stress associated with i-th crack direction

Reimplemented from oofem::ConcreteFCM.

Definition at line 562 of file frcfcm.C.

References computeStressInFibersInCracked(), oofem::ConcreteFCM::giveNormalCrackingStress(), and Vf.

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

virtual

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: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

ir	Input record to initialize from.

Returns: IRResultType

Reimplemented from oofem::ConcreteFCM.

Reimplemented in oofem::FRCFCMNL.

Definition at line 53 of file frcfcm.C.

References _IFT_FRCFCM_b0, _IFT_FRCFCM_b1, _IFT_FRCFCM_b2, _IFT_FRCFCM_b3, _IFT_FRCFCM_computeCrackSpacing, _IFT_FRCFCM_Df, _IFT_FRCFCM_dw0, _IFT_FRCFCM_dw1, _IFT_FRCFCM_Ef, _IFT_FRCFCM_f, _IFT_FRCFCM_fDamType, _IFT_FRCFCM_fiberType, _IFT_FRCFCM_fibreActivationOpening, _IFT_FRCFCM_fssType, _IFT_FRCFCM_gammaCrack, _IFT_FRCFCM_Gfib, _IFT_FRCFCM_kfib, _IFT_FRCFCM_Lf, _IFT_FRCFCM_M, _IFT_FRCFCM_nuf, _IFT_FRCFCM_orientationVector, _IFT_FRCFCM_tau_0, _IFT_FRCFCM_Vf, _IFT_IsotropicLinearElasticMaterial_e, oofem::FloatArray::at(), b0, b1, b2, b3, computeCrackSpacing(), oofem::FCMMaterial::crackSpacing, Df, dw0, dw1, Ef, eta, f, FDAM_GammaCrackExp, FDAM_GammaCrackLin, FDAM_NONE, FDAM_Unknown, fiberDamageType, fiberShearStrengthType, fiberType, fibreActivationOpening, FSS_Havlasek, FSS_Kabele, FSS_NONE, FSS_Sajdlova, FSS_Unknown, FT_CAF, FT_SAF, FT_SRF, FT_Unknown, g, gammaCrackFail, Gfib, oofem::FloatArray::giveSize(), oofem::InputRecord::hasField(), oofem::ConcreteFCM::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_BAD_FORMAT, oofem::IRRT_OK, kfib, Lf, M, M_PI, OOFEM_ERROR, OOFEM_WARNING, orientationVector, oofem::FloatArray::resize(), smoothen, tau_0, oofem::FloatArray::times(), Vf, w_star, and oofem::FloatArray::zero().

Referenced by oofem::FRCFCMNL::initializeFrom().

bool oofem::FRCFCM::isStrengthExceeded	(	const FloatMatrix &	base,
		GaussPoint *	gp,
		TimeStep *	tStep,
		int	iCrack,
		double	trialStress
	)

protectedvirtual

the method from fcm is overridden to consider stress split between the matrix and fibers

Reimplemented from oofem::FCMMaterial.

Reimplemented in oofem::FRCFCMNL.

Definition at line 1012 of file frcfcm.C.

References Ef, oofem::FCMMaterial::giveLinearElasticMaterial(), oofem::ConcreteFCM::giveTensileStrength(), oofem::IsotropicLinearElasticMaterial::giveYoungsModulus(), and Vf.

Referenced by oofem::FRCFCMNL::isStrengthExceeded().

double oofem::FRCFCM::maxShearStress	(	GaussPoint *	gp,
		int	i
	)

protectedvirtual

computes the maximum value of the shear stress; if the shear stress exceeds this value, it is cropped

Reimplemented from oofem::ConcreteFCM.

Definition at line 916 of file frcfcm.C.

References computeCrackFibreAngle(), computeTempDamage(), E, fcm_BIGNUMBER, fiberType, FT_CAF, FT_SAF, Gfib, oofem::FCMMaterial::giveLinearElasticMaterial(), oofem::GaussPoint::giveMaterialMode(), oofem::ConcreteFCM::giveStatus(), oofem::FCMMaterialStatus::giveTempMaxCrackStrain(), oofem::IsotropicLinearElasticMaterial::giveYoungsModulus(), oofem::FCMMaterial::isIntact(), kfib, oofem::ConcreteFCM::maxShearStress(), oofem::min(), OOFEM_ERROR, and Vf.

Member Data Documentation

double oofem::FRCFCM::b0

protected

micromechanical parameter for fiber shear according to Sajdlova

Definition at line 132 of file frcfcm.h.

Referenced by computeFiberBond(), and initializeFrom().

double oofem::FRCFCM::b1

protected

micromechanical parameter for fiber shear according to Kabele

Definition at line 134 of file frcfcm.h.

Referenced by computeFiberBond(), and initializeFrom().

double oofem::FRCFCM::b2

protected

Definition at line 134 of file frcfcm.h.

Referenced by computeFiberBond(), and initializeFrom().

double oofem::FRCFCM::b3

protected

Definition at line 134 of file frcfcm.h.

Referenced by computeFiberBond(), and initializeFrom().

double oofem::FRCFCM::Df

protected

fiber diameter

Definition at line 149 of file frcfcm.h.

Referenced by computeCrackSpacing(), oofem::FRCFCMNL::computeDebondedLength(), oofem::FRCFCMNL::computeDecreaseInFibreStress(), computeFiberBond(), computeStressInFibersInCracked(), giveCrackingModulus(), and initializeFrom().

double oofem::FRCFCM::dw0

protected

smooth transition of the bridging stress if fibreActivationOpening is applied dw0 = distance from the fibreActivationOpening where the smooth transition starts dw1 = distance from the fibreActivationOpening where the smooth transition ends smoothen = flag

Definition at line 192 of file frcfcm.h.

Referenced by computeStressInFibersInCracked(), giveCrackingModulus(), and initializeFrom().

double oofem::FRCFCM::dw1

protected

Definition at line 192 of file frcfcm.h.

Referenced by computeStressInFibersInCracked(), giveCrackingModulus(), and initializeFrom().

double oofem::FRCFCM::Ef

protected

fiber Young's modulus

Definition at line 152 of file frcfcm.h.

Referenced by oofem::FRCFCMNL::computeDebondedLength(), computeFiberBond(), computeOverallElasticStiffness(), computeStressInFibersInCracked(), giveCrackingModulus(), initializeFrom(), and isStrengthExceeded().