This class extends the material model based on MPS theory (microprestress-solidification) for concrete creep and shrinkage by a simple isotropic damage model to take into account cracking in tension. More...

#include <mpsdammat.h>

Inheritance diagram for oofem::MPSDamMaterial:

Collaboration diagram for oofem::MPSDamMaterial:

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

virtual	~MPSDamMaterial ()

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

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

virtual const char *	giveInputRecordName () const

virtual const char *	giveClassName () const

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

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

double	givee0 (GaussPoint *gp)

double	givegf (GaussPoint *gp)

void	initDamaged (double kappa, FloatArray &totalStrainVector, GaussPoint gp, TimeStep tStep)
	Abstract service allowing to perform some initialization, when damage first appear. More...

void	initDamagedFib (GaussPoint gp, TimeStep tStep)

void	computeDamage (double &omega, double kappa, GaussPoint *gp)
	Computes the value of damage omega, based on given value of equivalent strain. More...

void	computeDamageForCohesiveCrack (double &omega, double kappa, GaussPoint *gp)
	computes the value of damage parameter omega, based on a given value of equivalent strain, using iterations to achieve objectivity, based on the crack band concept (effective element size used) More...

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

virtual double	computeTensileStrength (double equivalentTime)

virtual double	computeFractureEnergy (double equivalentTime)

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 mode, GaussPoint gp, TimeStep tStep)
	Method for computing plane stress stiffness matrix of receiver. More...

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

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

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

virtual	~MPSMaterial ()

virtual void	giveShrinkageStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)
	Computes, for the given integration point, the strain vector induced by stress-independent shrinkage. More...

virtual double	computeCreepFunction (double t, double t_prime, GaussPoint gp, TimeStep tStep)
	Evaluation of the basic creep compliance function - can be used to compute elastic modulus in derived damage material. More...

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

virtual	~KelvinChainSolidMaterial ()

void	computeHiddenVars (GaussPoint gp, TimeStep tStep)

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

virtual	~RheoChainMaterial ()

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 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...

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

double	giveAlphaOne () const

double	giveAlphaTwo () const

virtual bool	isActivated (TimeStep *tStep)

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)

double	giveReferenceTemperature ()
	Returns the reference temperature of receiver. 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	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_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 double	give (int aProperty, GaussPoint *gp)
	Returns the value of material property 'aProperty'. 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 void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. 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 MaterialStatus *	giveStatus (GaussPoint *gp) const
	Returns material status of receiver in given integration point. 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...

Protected Types
enum	SofteningType { ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, ST_Disable_Damage }
	Type characterizing the formula for the damage law. More...

Protected Types inherited from oofem::MPSMaterial
enum	coupledAnalysisType { Basic, MPS_full, MPS_humidity, MPS_temperature }

Protected Attributes
bool	timeDepFracturing

double	fib_s

double	fib_fcm28

bool	isotropic

double	E
	dummy Young's modulus More...

double	maxOmega
	Maximum limit on omega. The purpose is elimination of a too compliant material which may cause convergence problems. Set to something like 0.99 if needed. More...

double	ft
	Equivalent strain at stress peak (or a similar parameter). More...

double	const_gf
	Determines the softening -> corresponds to the initial fracture energy. More...

int	checkSnapBack
	Check possible snap back flag. More...

SofteningType	softType
	Parameter specifying the type of softening (damage law). More...

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

double	ft28
	28-day value of tensile strength. Used only with "timedepfracturing" More...

double	gf28
	28-day value of fracture energy. Used only with "timedepfracturing" More...

Protected Attributes inherited from oofem::MPSMaterial
double	t0
	age when temperature or humidity starts to change More...

double	q1
	compliances of the B3 model More...

double	q2

double	q3

double	q4

double	lambda0
	constant equal to one day in time units of analysis (eg. 86400 if the analysis runs in seconds) More...

enum oofem::MPSMaterial::coupledAnalysisType	CoupledAnalysis

double	EspringVal

double	kSh
	additional parameters for sorption isotherm (used to compute relative humidity from water content) More...

double	muS
	fluidity parameter used in viscosity evolution equation More...

double	k3

double	kTm
	kTm replaces ln(h) on RHS of the differential equation describing evolution of MPS More...

double	kTc
	parameter reducing creep effects of thermal cycling (replaces kTm in such case) More...

double	ct
	parameter reducing creep effects of thermal cycling More...

double	roomTemperature
	reference room temperature for MPS algorithm [K] More...

double	QEtoR
	activation energies More...

double	QRtoR

double	QStoR

double	alphaE
	parameters that control the effect of humidity on rates of hydration, creep and microprestress relaxation More...

double	alphaR

double	alphaS

double	p
	exponent in the microprestress/viscosity governing equation More...

double	sh_a
	parameters for nonlinear shrinkage function More...

double	sh_hC

double	sh_n

double	eps_cas0
	parameter for autogenous shrinkage according to fib MC 2010 More...

double	b4_eps_au_infty
	parameters for autogenous shrinkage according to B4 model More...

double	b4_tau_au

double	b4_alpha

double	b4_r_t

double	stiffnessFactor
	scaling factor 1. for Pa, 1.e6 for MPa - only for empirical formulas - q1-q4 and ft and gf More...

double	temperScaleDifference
	0 for Kelvin, 273.15 for Celsius More...

Protected Attributes inherited from oofem::RheoChainMaterial
double	talpha
	thermal dilatation coeff. More...

int	nUnits
	Number of (Maxwell or Kelvin) units in the rheologic chain. More...

double	relMatAge
	Physical age of the material at simulation time = 0. More...

bool	lattice

double	nu
	Poisson's ratio (assumed to be constant, unaffected by creep). More...

double	alphaOne
	Parameters for the lattice model. More...

double	alphaTwo

double	EparValTime
	Time for which the partial moduli of individual units have been evaluated. More...

double	begOfTimeOfInterest
	Time from which the model should give a good approximation. Optional field. Default value is 0.1 [day]. More...

double	endOfTimeOfInterest
	Time (age???) up to which the model should give a good approximation. More...

LinearElasticMaterial *	linearElasticMaterial
	Associated linearElasticMaterial, with E = 1. More...

FloatArray	EparVal
	Partial moduli of individual units. More...

FloatArray	charTimes
	Characteristic times of individual units (relaxation or retardation times). More...

FloatArray	discreteTimeScale
	Times at which the errors are evaluated if the least-square method is used. More...

double	timeFactor
	Scaling factor transforming the simulation time units into days (gives the number of simulation time units in one day, e.g. More...

int	preCastingTimeMat
	Stiffness at time less than casting time - optional parameter, negative by default. 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...

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...

Protected Member Functions inherited from oofem::MPSMaterial
void	predictParametersFrom (double, double, double, double)

virtual void	computeCharTimes ()
	Evaluation of characteristic times. More...

virtual void	computeCharCoefficients (FloatArray &answer, double, GaussPoint gp, TimeStep tStep)
	Evaluation of characteristic moduli of the non-aging Kelvin chain. More...

virtual double	giveEModulus (GaussPoint gp, TimeStep tStep)
	Evaluation of the incremental modulus. More...

virtual double	computeSolidifiedVolume (GaussPoint gp, TimeStep tStep)
	Evaluation of the relative volume of the solidified material. More...

virtual double	computeBetaMu (GaussPoint gp, TimeStep tStep, int Mu)
	factors for exponential algorithm More...

virtual double	computeLambdaMu (GaussPoint gp, TimeStep tStep, int Mu)

double	computeFlowTermViscosity (GaussPoint gp, TimeStep tStep)
	Evaluation of the flow term viscosity. More...

double	giveInitViscosity (TimeStep *tStep)
	Returns initial value of the flow term viscosity. More...

virtual void	giveEigenStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)
	Computes, for the given integration point, the strain vector induced by the stress history (typically creep strain). More...

virtual int	hasIncrementalShrinkageFormulation ()
	If only incremental shrinkage strain formulation is provided, then total shrinkage strain must be tracked in status in order to be able to compute total value. More...

void	computePointShrinkageStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Evaluation of the shrinkageStrainVector - shrinkage is fully dependent on humidity rate in given GP. More...

void	computeFibAutogenousShrinkageStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Evaluation of the autogenousShrinkageStrainVector according to fib MC 2010 - autogenous shrinkage is fully dependent on the equivalent age at given GP. More...

void	computeB4AutogenousShrinkageStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Evaluation of the autogenousShrinkageStrainVector according to Bazant's B4 model. In the model the evolution depends on temperature adjusted age, here on equivalent age (additional humidity influence) More...

double	giveHumidity (GaussPoint gp, TimeStep tStep, int option)
	Gives value of humidity at given GP and timestep option = 0 ... More...

double	giveTemperature (GaussPoint gp, TimeStep tStep, int option)
	Gives value of temperature at given GP and timestep option = 0 ... More...

double	computePsiR (GaussPoint gp, TimeStep tStep, int option)
	Evaluation of the factor transforming real time to reduced time (effect on the flow term) option = 0 ... More...

double	computePsiS (GaussPoint gp, TimeStep tStep)
	Evaluation of the factor transforming real time to reduced time (effect on the evolution of microprestress) More...

double	computePsiE (GaussPoint gp, TimeStep tStep)
	Evaluation of the factor transforming real time to equivalent time (effect on the solidified volume) More...

double	computeEquivalentTime (GaussPoint gp, TimeStep tStep, int option)
	Computes equivalent time at given time step and GP. More...

Protected Member Functions inherited from oofem::RheoChainMaterial
const FloatArray &	giveDiscreteTimes ()

void	computeDiscreteRelaxationFunction (FloatArray &answer, const FloatArray &tSteps, double t0, double tr, GaussPoint gp, TimeStep tSte)
	Evaluation of the relaxation function at given times. More...

void	giveUnitComplianceMatrix (FloatMatrix &answer, GaussPoint gp, TimeStep tStep)
	Evaluation of elastic compliance matrix for unit Young's modulus. More...

void	giveUnitStiffnessMatrix (FloatMatrix &answer, GaussPoint gp, TimeStep tStep)
	Evaluation of elastic stiffness matrix for unit Young's modulus. More...

virtual void	updateEparModuli (double tPrime, GaussPoint gp, TimeStep tStep)
	Update of partial moduli of individual chain units. More...

double	giveEparModulus (int iChain)
	Access to partial modulus of a given unit. More...

double	giveCharTime (int) const
	Access to the characteristic time of a given unit. More...

virtual double	giveCharTimeExponent (int i)
	Exponent to be used with the char time of a given unit, usually = 1.0. More...

LinearElasticMaterial *	giveLinearElasticMaterial ()
	Access to the underlying linear elastic material with unit Young's modulus. More...

double	giveEndOfTimeOfInterest ()
	Access to the time up to which the response should be accurate. More...

void	computeTrueStressIndependentStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)
	Computes, for the given integration point, the strain vector induced by stress-independent internal processes in the material. More...

Static Protected Member Functions inherited from oofem::RheoChainMaterial
static void	generateLogTimeScale (FloatArray &answer, double from, double to, int nsteps)
	Generates discrete times starting from time "from" to time "to" uniformly distributed in log time scale. More...

Detailed Description

This class extends the material model based on MPS theory (microprestress-solidification) for concrete creep and shrinkage by a simple isotropic damage model to take into account cracking in tension.

Most of the methods are simply copied from "idm1" and "isodamagemodel" files. Since the damage is not the main feature of this model the methods were simplified to make the code brief. The following simplifications are assumed:

only two softening laws are implemented: linear and exponential
the equivalent strain measure uses Rankine (standard) criterion (max. principal strain)
the damage parameters (tensile strength, fracture energy) can be either specified or they can be computed according to recommendations from fib Model Code 2010
on contrary to idm1, the crack vector specifies the direction of crack opening and not the crack orientation
snapback is checked by default
element length is computed using ecsMethod = ECSM_Projection

Definition at line 182 of file mpsdammat.h.

Member Enumeration Documentation

enum oofem::MPSDamMaterial::SofteningType

protected

Type characterizing the formula for the damage law.

For example, linear softening can be specified with fracturing strain or crack opening.

Enumerator
ST_Exponential_Cohesive_Crack
ST_Linear_Cohesive_Crack
ST_Disable_Damage

Definition at line 214 of file mpsdammat.h.

Constructor & Destructor Documentation

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

Definition at line 222 of file mpsdammat.C.

References checkSnapBack, const_gf, E, oofem::ECSM_Projection, ecsMethod, maxOmega, softType, and ST_Exponential_Cohesive_Crack.

virtual oofem::MPSDamMaterial::~MPSDamMaterial ( )

inlinevirtual

Definition at line 232 of file mpsdammat.h.

Member Function Documentation

void oofem::MPSDamMaterial::computeDamage	(	double &	omega,
		double	kappa,
		GaussPoint *	gp
	)

Computes the value of damage omega, based on given value of equivalent strain.

Parameters

[out]	omega	Contains result.
	kappa	Equivalent strain measure.
	strain	Total strain in full form.
	gp	Integration point.

Definition at line 644 of file mpsdammat.C.

References computeDamageForCohesiveCrack(), softType, and ST_Disable_Damage.

Referenced by giveRealStressVector().

void oofem::MPSDamMaterial::computeDamageForCohesiveCrack	(	double &	omega,
		double	kappa,
		GaussPoint *	gp
	)

computes the value of damage parameter omega, based on a given value of equivalent strain, using iterations to achieve objectivity, based on the crack band concept (effective element size used)

Parameters

[out]	omega	Contains the resulting damage.
	kappa	Equivalent strain measure.
	gp	Integration point.

Definition at line 654 of file mpsdammat.C.

References checkSnapBack, E, oofem::MPSDamMaterialStatus::giveCharLength(), givee0(), oofem::GaussPoint::giveElement(), givegf(), oofem::FEMComponent::giveNumber(), oofem::Material::giveStatus(), MPSDAMMAT_ITERATION_LIMIT, OOFEM_ERROR, OOFEM_WARNING, oofem::MPSDamMaterialStatus::setResidualTensileStrength(), softType, ST_Exponential_Cohesive_Crack, and ST_Linear_Cohesive_Crack.

Referenced by computeDamage().

double oofem::MPSDamMaterial::computeFractureEnergy ( double equivalentTime )

virtual

Definition at line 556 of file mpsdammat.C.

References computeTensileStrength(), fib_fcm28, gf28, oofem::MPSMaterial::lambda0, and oofem::MPSMaterial::stiffnessFactor.

Referenced by initDamagedFib().

double oofem::MPSDamMaterial::computeTensileStrength ( double equivalentTime )

virtual

Definition at line 603 of file mpsdammat.C.

References fib_fcm28, fib_s, ft28, oofem::MPSMaterial::lambda0, and oofem::MPSMaterial::stiffnessFactor.

Referenced by computeFractureEnergy(), giveIPValue(), and initDamagedFib().

MaterialStatus * oofem::MPSDamMaterial::CreateStatus ( GaussPoint * gp ) const

virtual

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::MPSMaterial.

Definition at line 807 of file mpsdammat.C.

References oofem::FEMComponent::giveDomain(), and oofem::RheoChainMaterial::nUnits.

void oofem::MPSDamMaterial::give1dStressStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing 1d stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to 1d stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix.

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::RheoChainMaterial.

Definition at line 873 of file mpsdammat.C.

References oofem::RheoChainMaterial::give1dStressStiffMtrx(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::giveTempDamage(), isotropic, maxOmega, oofem::min(), and oofem::FloatMatrix::times().

void oofem::MPSDamMaterial::give3dMaterialStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point.

Parameters

answer	Computed results.
mode	Material response mode.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::RheoChainMaterial.

Definition at line 817 of file mpsdammat.C.

References oofem::RheoChainMaterial::give3dMaterialStiffnessMatrix(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::giveTempDamage(), isotropic, maxOmega, oofem::min(), and oofem::FloatMatrix::times().

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

inlinevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::MPSMaterial.

Definition at line 239 of file mpsdammat.h.

References oofem::MPSMaterialStatus::equivalentTime, oofem::MPSDamMaterialStatus::givee0(), oofem::MPSDamMaterialStatus::givegf(), oofem::IntegrationPointStatus::gp, oofem::MPSDamMaterialStatus::initDamaged(), oofem::MaterialStatus::initializeFrom(), and oofem::MPSDamMaterialStatus::kappa.

double oofem::MPSDamMaterial::givee0 ( GaussPoint * gp )

Definition at line 533 of file mpsdammat.C.

References E, ft, oofem::MPSDamMaterialStatus::givee0(), oofem::Material::giveStatus(), and timeDepFracturing.

Referenced by computeDamageForCohesiveCrack(), giveRealStressVector(), and initDamaged().

double oofem::MPSDamMaterial::givegf ( GaussPoint * gp )

Definition at line 544 of file mpsdammat.C.

References const_gf, oofem::MPSDamMaterialStatus::givegf(), oofem::Material::giveStatus(), and timeDepFracturing.

Referenced by computeDamageForCohesiveCrack(), giveRealStressVector(), and initDamaged().

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

inlinevirtual

Returns: Input record name of the receiver.

Reimplemented from oofem::MPSMaterial.

Definition at line 238 of file mpsdammat.h.

References _IFT_MPSDamMaterial_Name.

int oofem::MPSDamMaterial::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::MPSMaterial.

Definition at line 892 of file mpsdammat.C.

References oofem::FloatArray::at(), oofem::Material::castingTime, computeTensileStrength(), ft, oofem::MPSDamMaterialStatus::giveCharLength(), oofem::MPSDamMaterialStatus::giveCrackVector(), oofem::MPSDamMaterialStatus::giveCrackWidth(), oofem::MPSDamMaterialStatus::giveDamage(), oofem::MPSMaterialStatus::giveEquivalentTime(), oofem::MPSMaterial::giveIPValue(), oofem::StructuralMaterial::giveIPValue(), oofem::MPSDamMaterialStatus::giveResidualTensileStrength(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::giveTempDamage(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

void oofem::MPSDamMaterial::givePlaneStrainStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing plane strain stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to plane strain stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix. Note: as already described, if zero strain component is imposed (Plane strain, ..) this condition must be taken into account in geometrical relations, and corresponding component has to be included in reduced vector. (So plane strain conditions are $\epsilon_z = \gamma_{xz} = \gamma_{yz} = 0$ , but relations for $\epsilon_z$ and $\sigma_z$ are included).

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::RheoChainMaterial.

Definition at line 854 of file mpsdammat.C.

References oofem::RheoChainMaterial::givePlaneStrainStiffMtrx(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::giveTempDamage(), isotropic, maxOmega, oofem::min(), and oofem::FloatMatrix::times().

void oofem::MPSDamMaterial::givePlaneStressStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing plane stress stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to plane stress stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix.

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::RheoChainMaterial.

Definition at line 836 of file mpsdammat.C.

References oofem::RheoChainMaterial::givePlaneStressStiffMtrx(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::giveTempDamage(), isotropic, maxOmega, oofem::min(), and oofem::FloatMatrix::times().

void oofem::MPSDamMaterial::giveRealStressVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedStrain,
		TimeStep *	tStep
	)

virtual

Computes the real stress vector for given total strain and integration point.

The total strain is defined as strain computed directly from displacement field at given time. The stress independent parts (temperature, eigenstrains) are subtracted in constitutive driver. The service should use previously reached equilibrium history variables. Also it should update temporary history variables in status according to newly reached state. The temporary history variables are moved into equilibrium ones after global structure equilibrium has been reached by iteration process.

Parameters

answer	Stress vector in reduced form. For large deformations it is treated as the second Piola-Kirchoff stress.
gp	Integration point.
reducedStrain	Strain vector in reduced form. For large deformations it is treated as the Green-Lagrange strain.
tStep	Current time step (most models are able to respond only when tStep is current time step).

Todo:: Move this to StructuralCrossSection ?

Reimplemented from oofem::MPSMaterial.

Definition at line 326 of file mpsdammat.C.

int oofem::MPSDamMaterial::hasMaterialModeCapability ( MaterialMode mode )

virtual

Tests if material supports material mode.

Parameters

mode	Required material mode.

Returns: Nonzero if supported, zero otherwise.

Reimplemented from oofem::RheoChainMaterial.

Definition at line 239 of file mpsdammat.C.

virtual int oofem::MPSDamMaterial::hasNonLinearBehaviour ( )

inlinevirtual

Returns nonzero if receiver is non linear.

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 234 of file mpsdammat.h.

void oofem::MPSDamMaterial::initDamaged	(	double	kappa,
		FloatArray &	totalStrainVector,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

Abstract service allowing to perform some initialization, when damage first appear.

Parameters

kappa	Scalar measure of strain level.
totalStrainVector	Current total strain vector.
gp	Integration point.

Definition at line 765 of file mpsdammat.C.

References checkSnapBack, E, ecsMethod, oofem::Element::giveCharacteristicSize(), oofem::MPSDamMaterialStatus::giveDamage(), givee0(), oofem::GaussPoint::giveElement(), givegf(), oofem::Element::giveLabel(), oofem::Material::giveStatus(), initDamagedFib(), OOFEM_ERROR, OOFEM_WARNING, oofem::MPSDamMaterialStatus::setCharLength(), oofem::MPSDamMaterialStatus::setCrackVector(), softType, ST_Disable_Damage, ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, and timeDepFracturing.

Referenced by giveRealStressVector().

void oofem::MPSDamMaterial::initDamagedFib	(	GaussPoint *	gp,
		TimeStep *	tStep
	)

Definition at line 515 of file mpsdammat.C.

References oofem::MPSMaterial::computeEquivalentTime(), computeFractureEnergy(), computeTensileStrength(), E, oofem::MPSDamMaterialStatus::giveDamage(), oofem::Material::giveStatus(), oofem::MPSDamMaterialStatus::sete0(), and oofem::MPSDamMaterialStatus::setgf().

Referenced by giveRealStressVector(), and initDamaged().

IRResultType oofem::MPSDamMaterial::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

if sortion parameters are provided then it is assumed that the transport analysis uses moisture content/ratio; if not then it exports relative humidity

flag - if true, external fields and reference temperature are in Celsius

auxiliary parameters for autogenous shrinkage according to B4 model

Reimplemented from oofem::MPSMaterial.

Definition at line 250 of file mpsdammat.C.

Member Data Documentation

int oofem::MPSDamMaterial::checkSnapBack

protected

Check possible snap back flag.

Definition at line 217 of file mpsdammat.h.

Referenced by computeDamageForCohesiveCrack(), initDamaged(), initializeFrom(), and MPSDamMaterial().

double oofem::MPSDamMaterial::const_gf

protected

Determines the softening -> corresponds to the initial fracture energy.

For a linear law, it is the area under the stress/strain curve. For an exponential law, it is the area bounded by the elastic range and a tangent to the softening part of the curve at the peak stress. For a bilinear law, gf corresponds to area bounded by elasticity and the first linear softening line projected to zero stress.

Definition at line 209 of file mpsdammat.h.

Referenced by givegf(), initializeFrom(), and MPSDamMaterial().

double oofem::MPSDamMaterial::E

protected

dummy Young's modulus

Definition at line 192 of file mpsdammat.h.

Referenced by computeDamageForCohesiveCrack(), givee0(), giveRealStressVector(), initDamaged(), initDamagedFib(), and MPSDamMaterial().

ElementCharSizeMethod oofem::MPSDamMaterial::ecsMethod

protected

Method used for evaluation of characteristic element size.

Definition at line 223 of file mpsdammat.h.

Referenced by initDamaged(), and MPSDamMaterial().

double oofem::MPSDamMaterial::fib_fcm28

protected

Definition at line 188 of file mpsdammat.h.

Referenced by computeFractureEnergy(), computeTensileStrength(), and initializeFrom().

double oofem::MPSDamMaterial::fib_s

protected

Definition at line 187 of file mpsdammat.h.

Referenced by computeTensileStrength(), and initializeFrom().

double oofem::MPSDamMaterial::ft

protected

Equivalent strain at stress peak (or a similar parameter).

constant tensile strength

Definition at line 201 of file mpsdammat.h.

Referenced by givee0(), giveIPValue(), and initializeFrom().

double oofem::MPSDamMaterial::ft28

protected

28-day value of tensile strength. Used only with "timedepfracturing"

Definition at line 226 of file mpsdammat.h.

Referenced by computeTensileStrength(), and initializeFrom().

double oofem::MPSDamMaterial::gf28

protected

28-day value of fracture energy. Used only with "timedepfracturing"

Definition at line 228 of file mpsdammat.h.

Referenced by computeFractureEnergy(), and initializeFrom().

bool oofem::MPSDamMaterial::isotropic

protected

Definition at line 189 of file mpsdammat.h.

Referenced by give1dStressStiffMtrx(), give3dMaterialStiffnessMatrix(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), giveRealStressVector(), and initializeFrom().

double oofem::MPSDamMaterial::maxOmega

protected

Maximum limit on omega. The purpose is elimination of a too compliant material which may cause convergence problems. Set to something like 0.99 if needed.

Definition at line 195 of file mpsdammat.h.

Referenced by give1dStressStiffMtrx(), give3dMaterialStiffnessMatrix(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), and MPSDamMaterial().

SofteningType oofem::MPSDamMaterial::softType

protected

Parameter specifying the type of softening (damage law).

Definition at line 220 of file mpsdammat.h.

Referenced by computeDamage(), computeDamageForCohesiveCrack(), giveRealStressVector(), initDamaged(), initializeFrom(), and MPSDamMaterial().

bool oofem::MPSDamMaterial::timeDepFracturing

protected

Definition at line 186 of file mpsdammat.h.

Referenced by givee0(), givegf(), giveRealStressVector(), initDamaged(), and initializeFrom().

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

Public Member Functions

Protected Types

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation