This class implements a ConcreteFCM material in a finite element problem. More...

#include <concretefcm.h>

Inheritance diagram for oofem::ConcreteFCM:

Collaboration diagram for oofem::ConcreteFCM:

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

virtual	~ConcreteFCM ()

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

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

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

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

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

virtual int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep)
	Returns the integration point corresponding value in Reduced form. 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	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	giveTensileStrength (GaussPoint *gp)
	returns tensile strength (can be random) More...

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

virtual double	giveCrackingModulus (MatResponseMode rMode, GaussPoint *gp, int i)
	returns stiffness in the normal direction of 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	giveNormalCrackingStress (GaussPoint *gp, double eps_cr, int i)
	computes normal stress associated with i-th crack direction 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 void	checkSnapBack (GaussPoint *gp, int crack)
	checks possible snap-back 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 bool	isStrengthExceeded (const FloatMatrix &base, GaussPoint gp, TimeStep tStep, int iCrack, double trialStress)
	compares trial stress with strength. Returns true if the strength is exceeded. Function oveloaded in the nonlocal approach for the fiber reinforced composites 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	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...

virtual double	computeOverallElasticStiffness (void)
	returns overall Young's modulus More...

virtual double	computeOverallElasticShearModulus (void)
	returns overall shear modulus 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	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 ConcreteFCM material in a finite element problem.

Cracking is described using Fixed Crack Model based on crack band approach. The model offers several predefined functions for softening and for reduction of shear stiffness caused by cracking.

Definition at line 98 of file concretefcm.h.

Member Enumeration Documentation

enum oofem::ConcreteFCM::ShearRetentionType

protected

type of reduction of the shear stiffness caused by cracking

Enumerator
SHR_NONE
SHR_Const_ShearRetFactor
SHR_Const_ShearFactorCoeff
SHR_UserDefined_ShearRetFactor
SHR_Unknown

Definition at line 181 of file concretefcm.h.

enum oofem::ConcreteFCM::ShearStrengthType

protected

defines the maximum value of shear stress

Enumerator
SHS_NONE
SHS_Const_Ft
SHS_Collins_Interlock
SHS_Unknown

Definition at line 185 of file concretefcm.h.

enum oofem::ConcreteFCM::SofteningType

protected

type of post-peak behavior in the normal direction to the crack plane

Enumerator
ST_NONE
ST_Exponential
ST_Linear
ST_Hordijk
ST_UserDefinedCrack
ST_LinearHardeningStrain
ST_UserDefinedStrain
ST_Unknown

Definition at line 177 of file concretefcm.h.

Constructor & Destructor Documentation

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

Definition at line 44 of file concretefcm.C.

References Ft, Gf, oofem::FCMMaterial::linearElasticMaterial, shearType, SHR_Unknown, softType, and ST_Unknown.

virtual oofem::ConcreteFCM::~ConcreteFCM ( )

inlinevirtual

Definition at line 102 of file concretefcm.h.

References oofem::MaterialStatus::initializeFrom().

Member Function Documentation

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

protectedvirtual

checks possible snap-back

Implements oofem::FCMMaterial.

Reimplemented in oofem::FRCFCM.

Definition at line 661 of file concretefcm.C.

References oofem::FloatArray::at(), oofem::FCMMaterial::computeOverallElasticStiffness(), E, Ft, Gf, oofem::FCMMaterialStatus::giveCharLength(), oofem::GaussPoint::giveElement(), giveFractureEnergy(), oofem::FEMComponent::giveNumber(), oofem::FloatArray::giveSize(), giveStatus(), giveTensileStrength(), oofem::min(), OOFEM_ERROR, soft_eps, soft_function_eps, soft_function_w, soft_w, softType, ST_Exponential, ST_Hordijk, ST_Linear, ST_LinearHardeningStrain, ST_NONE, ST_UserDefinedCrack, and ST_UserDefinedStrain.

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

protectedvirtual

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

shear retention factor = beta(w)

Implements oofem::FCMMaterial.

Reimplemented in oofem::FRCFCM.

Definition at line 598 of file concretefcm.C.

References oofem::FloatArray::at(), beta, beta_function, beta_w, oofem::FCMMaterial::computeMaxNormalCrackOpening(), oofem::FCMMaterial::computeNormalCrackOpening(), oofem::FCMMaterial::computeOverallElasticShearModulus(), oofem::FCMMaterial::computeOverallElasticStiffness(), E, fcm_BIGNUMBER, fcm_SMALL_STRAIN, giveCrackingModulus(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::FloatArray::giveSize(), oofem::FCMMaterial::isIntact(), oofem::max(), oofem::min(), N, OOFEM_ERROR, sf, shearType, SHR_Const_ShearFactorCoeff, SHR_Const_ShearRetFactor, SHR_NONE, and SHR_UserDefined_ShearRetFactor.

Referenced by oofem::FRCFCM::computeD2ModulusForCrack(), and oofem::FRCFCM::estimateD2ModulusForCrack().

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

protectedvirtual

returns Geff which is necessary in the global stiffness matrix

Implements oofem::FCMMaterial.

Reimplemented in oofem::FRCFCM.

Definition at line 541 of file concretefcm.C.

References beta, oofem::FCMMaterial::computeOverallElasticShearModulus(), oofem::FCMMaterial::computeTotalD2Modulus(), oofem::FCMMaterial::giveNumberOfCracksForShearDirection(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::FCMMaterial::isIntactForShear(), oofem::FCMMaterial::multipleCrackShear, N, OOFEM_ERROR, shearType, SHR_Const_ShearFactorCoeff, SHR_Const_ShearRetFactor, SHR_NONE, and SHR_UserDefined_ShearRetFactor.

virtual MaterialStatus* oofem::ConcreteFCM::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::FCMMaterial.

Reimplemented in oofem::FRCFCMNL, and oofem::FRCFCM.

Definition at line 112 of file concretefcm.h.

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

Referenced by giveStatus().

double oofem::ConcreteFCM::give	(	int	aProperty,
		GaussPoint *	gp
	)

virtual

Returns the value of material property 'aProperty'.

Property must be identified by unique int id. Integration point also passed to allow for materials with spatially varying properties

Parameters

aProperty	ID of property requested.
gp	Integration point,

Returns: Property value.

Reimplemented from oofem::FCMMaterial.

Definition at line 767 of file concretefcm.C.

References Ft, ft_strength, Gf, gf_ID, oofem::RandomMaterialExtensionInterface::give(), and oofem::FCMMaterial::give().

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

inlinevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::FCMMaterial.

Reimplemented in oofem::FRCFCMNL.

Definition at line 109 of file concretefcm.h.

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

protectedvirtual

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

Implements oofem::FCMMaterial.

Reimplemented in oofem::FRCFCM.

Definition at line 236 of file concretefcm.C.

References oofem::FloatArray::at(), oofem::FCMMaterial::computeOverallElasticStiffness(), E, eps_f, fcm_BIGNUMBER, fcm_SMALL_STRAIN, Ft, Gf, oofem::FCMMaterialStatus::giveCharLength(), giveFractureEnergy(), oofem::FCMMaterialStatus::giveMaxCrackStrain(), giveNormalCrackingStress(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::FloatArray::giveSize(), giveStatus(), oofem::FCMMaterialStatus::giveTempCrackStatus(), oofem::FCMMaterialStatus::giveTempCrackStrain(), giveTensileStrength(), H, oofem::max(), OOFEM_ERROR, OOFEM_WARNING, pscm_CLOSED, pscm_NONE, soft_eps, soft_function_eps, soft_function_w, soft_w, softType, ST_Exponential, ST_Hordijk, ST_Linear, ST_LinearHardeningStrain, ST_NONE, ST_UserDefinedCrack, and ST_UserDefinedStrain.

Referenced by computeD2ModulusForCrack(), and oofem::FRCFCM::giveCrackingModulus().

virtual double oofem::ConcreteFCM::giveFractureEnergy ( GaussPoint * gp )

inlineprotectedvirtual

returns fracture energy (can be random)

Definition at line 156 of file concretefcm.h.

References gf_ID.

Referenced by checkSnapBack(), giveCrackingModulus(), and giveNormalCrackingStress().

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

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::FRCFCMNL.

Definition at line 110 of file concretefcm.h.

References _IFT_ConcreteFCM_Name.

int oofem::ConcreteFCM::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::FCMMaterial.

Reimplemented in oofem::FRCFCMNL, and oofem::FRCFCM.

Definition at line 782 of file concretefcm.C.

References oofem::FCMMaterial::giveIPValue().

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

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

protectedvirtual

computes normal stress associated with i-th crack direction

Implements oofem::FCMMaterial.

Reimplemented in oofem::FRCFCM.

Definition at line 374 of file concretefcm.C.

References oofem::FloatArray::at(), oofem::FCMMaterial::computeOverallElasticStiffness(), E, eps_f, fcm_SMALL_STRAIN, Ft, Gf, oofem::FCMMaterialStatus::giveCharLength(), giveFractureEnergy(), oofem::FCMMaterialStatus::giveMaxCrackStrain(), oofem::FCMMaterial::giveNumberOfCracksInDirection(), oofem::FloatArray::giveSize(), giveStatus(), oofem::FCMMaterialStatus::giveTempCrackStatus(), giveTensileStrength(), H, oofem::max(), OOFEM_ERROR, OOFEM_WARNING, pscm_CLOSED, soft_eps, soft_function_eps, soft_function_w, soft_w, softType, ST_Exponential, ST_Hordijk, ST_Linear, ST_LinearHardeningStrain, ST_NONE, ST_UserDefinedCrack, and ST_UserDefinedStrain.

Referenced by giveCrackingModulus(), and oofem::FRCFCM::giveNormalCrackingStress().

MaterialStatus * oofem::ConcreteFCM::giveStatus ( GaussPoint * gp ) const

virtual

Returns material status of receiver in given integration point.

If status does not exist yet, it is created using CreateStatus member function.

Parameters

gp	Returns reference to material status belonging to integration point gp.

Returns: Material status associated with given integration point.

Reimplemented from oofem::Material.

Definition at line 790 of file concretefcm.C.

References oofem::RandomMaterialExtensionInterface::_generateStatusVariables(), CreateStatus(), oofem::GaussPoint::giveMaterialStatus(), oofem::FEMComponent::giveNumber(), and oofem::GaussPoint::setMaterialStatus().

Referenced by checkSnapBack(), oofem::FRCFCM::computeCrackFibreAngle(), oofem::FRCFCM::computeD2ModulusForCrack(), oofem::FRCFCM::computeStressInFibersInCracked(), oofem::FRCFCM::computeTempDamage(), oofem::FRCFCM::estimateD2ModulusForCrack(), giveCrackingModulus(), oofem::FRCFCM::giveCrackingModulus(), oofem::FRCFCM::giveIPValue(), oofem::FRCFCMNL::giveIPValue(), giveNormalCrackingStress(), oofem::FRCFCMNL::giveRealStressVector(), oofem::FRCFCMNL::isStrengthExceeded(), and oofem::FRCFCM::maxShearStress().

virtual double oofem::ConcreteFCM::giveTensileStrength ( GaussPoint * gp )

inlineprotectedvirtual

returns tensile strength (can be random)

Implements oofem::FCMMaterial.

Definition at line 153 of file concretefcm.h.

References ft_strength.

Referenced by checkSnapBack(), giveCrackingModulus(), giveNormalCrackingStress(), and oofem::FRCFCM::isStrengthExceeded().

virtual int oofem::ConcreteFCM::hasNonLinearBehaviour ( )

inlinevirtual

Returns nonzero if receiver is non linear.

Reimplemented from oofem::FCMMaterial.

Definition at line 108 of file concretefcm.h.

IRResultType oofem::ConcreteFCM::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.