OOFEM  2.4
OOFEM.org - Object Oriented Finite Element Solver
oofem::B3Material Class Reference

This class implements the B3 model for concrete creep and shrinkage. More...

#include <b3mat.h>

+ Inheritance diagram for oofem::B3Material:
+ Collaboration diagram for oofem::B3Material:

Public Member Functions

 B3Material (int n, Domain *d)
 
virtual ~B3Material ()
 
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 const char * giveClassName () const
 
virtual const char * giveInputRecordName () const
 
virtual IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. 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 double computeCreepFunction (double t, double t_prime)
 Evaluation of the creep compliance function at time t when loading is acting from time t_prime. More...
 
- Public Member Functions inherited from oofem::MaxwellChainMaterial
 MaxwellChainMaterial (int n, Domain *d)
 
virtual ~MaxwellChainMaterial ()
 
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...
 
void computeHiddenVars (GaussPoint *gp, TimeStep *tStep)
 
virtual int hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. 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 MaterialStatusCreateStatus (GaussPoint *gp) const
 Creates new copy of associated status and inserts it into given integration point. More...
 
- 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 int hasMaterialModeCapability (MaterialMode mode)
 Tests if material supports material mode. More...
 
virtual int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep)
 Returns the integration point corresponding value in Reduced form. 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 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 give1dStressStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 1d 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 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
 
- 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 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 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...
 
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 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 ()
 
bool isActivated (TimeStep *tStep)
 
virtual void printYourself ()
 Prints receiver state on stdout. Useful for debugging. More...
 
virtual int initMaterial (Element *element)
 Optional function to call specific procedures when initializing a material. More...
 
virtual MaterialStatusgiveStatus (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...
 
DomaingiveDomain () const
 
virtual void setDomain (Domain *d)
 Sets associated Domain. More...
 
int giveNumber () const
 
void setNumber (int num)
 Sets number of receiver. More...
 
virtual void updateLocalNumbering (EntityRenumberingFunctor &f)
 Local renumbering support. More...
 
virtual 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 int checkConsistency ()
 Allows programmer to test some internal data, before computation begins. More...
 
virtual void printOutputAt (FILE *file, TimeStep *tStep)
 Prints output of receiver to stream, for given time step. More...
 
virtual InterfacegiveInterface (InterfaceType t)
 Interface requesting service. More...
 
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...
 

Protected Types

enum  b3ShModeType { B3_NoShrinkage, B3_AverageShrinkage, B3_PointShrinkage }
 

Protected Member Functions

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...
 
virtual void computeTotalAverageShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep)
 
virtual void computeShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode)
 Free shrinkage at material point, requires staggered analysis. More...
 
void predictParametersFrom (double, double, double, double, double, double, double)
 
double inverse_sorption_isotherm (double w)
 Function calculates relative humidity from water content (inverse relation form sorption isotherm). More...
 
- Protected Member Functions inherited from oofem::MaxwellChainMaterial
virtual void computeCharCoefficients (FloatArray &answer, double tStep)
 This function computes the moduli of individual Maxwell units such that the corresponding Dirichlet series gives the best approximation of the actual relaxation function. More...
 
virtual double giveEModulus (GaussPoint *gp, TimeStep *tStep)
 Evaluation of the incremental modulus. More...
 
LinearElasticMaterialgiveLinearElasticMaterial ()
 
- Protected Member Functions inherited from oofem::RheoChainMaterial
const FloatArraygiveDiscreteTimes ()
 
void computeDiscreteRelaxationFunction (FloatArray &answer, const FloatArray &tSteps, double t0, double tr)
 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 tStep)
 Update of partial moduli of individual chain units. More...
 
double giveEparModulus (int iChain)
 Access to partial modulus of a given unit. More...
 
virtual void computeCharTimes ()
 Evaluation of characteristic times. 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...
 
LinearElasticMaterialgiveLinearElasticMaterial ()
 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...
 

Protected Attributes

double t0
 Age when drying begins (in days) More...
 
double w
 
double E28
 
double q1
 
double q2
 
double q3
 
double q4
 
double q5
 
enum oofem::B3Material::b3ShModeType shMode
 
Additional parameters for average cross section shrinkage.
double EpsSinf
 
double kt
 
double ks
 
double vs
 
double hum
 
Additional parameters for free shrinkage at material point.
double es0
 
double r
 
double rprime
 
double at
 
Additional parameters for absorption isotherm (used to compute relative humidity from water content)
double w_h
 Constant water content (obtained from experiments) w_h [Pedersen, 1990]. More...
 
double n
 Constant-exponent (obtained from experiments) n [Pedersen, 1990]. More...
 
double a
 Constant (obtained from experiments) A [Pedersen, 1990]. More...
 
double talpha
 Thermal dilatation coeff. More...
 
- Protected Attributes inherited from oofem::RheoChainMaterial
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...
 
LinearElasticMateriallinearElasticMaterial
 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...
 
- 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...
 
Domaindomain
 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 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...
 
- 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 implements the B3 model for concrete creep and shrinkage.

Definition at line 76 of file b3mat.h.

Member Enumeration Documentation

Enumerator
B3_NoShrinkage 
B3_AverageShrinkage 
B3_PointShrinkage 

Definition at line 83 of file b3mat.h.

Constructor & Destructor Documentation

oofem::B3Material::B3Material ( int  n,
Domain d 
)
inline

Definition at line 100 of file b3mat.h.

References B3_NoShrinkage.

virtual oofem::B3Material::~B3Material ( )
inlinevirtual

Definition at line 103 of file b3mat.h.

References giveShrinkageStrainVector().

Member Function Documentation

double oofem::B3Material::computeCreepFunction ( double  t,
double  t_prime 
)
virtual

Evaluation of the creep compliance function at time t when loading is acting from time t_prime.

Implements oofem::RheoChainMaterial.

Definition at line 211 of file b3mat.C.

References B3_AverageShrinkage, hum, ks, kt, n, q1, q2, q3, q4, q5, r, shMode, t0, and vs.

Referenced by computeShrinkageStrainVector(), and giveInputRecordName().

virtual const char* oofem::B3Material::giveClassName ( ) const
inlinevirtual
Returns
Class name of the receiver.

Reimplemented from oofem::MaxwellChainMaterial.

Definition at line 107 of file b3mat.h.

virtual const char* oofem::B3Material::giveInputRecordName ( ) const
inlinevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 108 of file b3mat.h.

References _IFT_B3Material_Name, computeCreepFunction(), giveThermalDilatationVector(), and initializeFrom().

void oofem::B3Material::giveShrinkageStrainVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep,
ValueModeType  mode 
)
virtual

Computes, for the given integration point, the strain vector induced by stress-independent shrinkage.

Parameters
answerReturned strain vector.
gpIntegration point.
tStepTime step (most models are able to respond only when tStep is current time step).
modeDetermines response mode (Total or incremental).

Reimplemented from oofem::MaxwellChainMaterial.

Definition at line 262 of file b3mat.C.

References B3_AverageShrinkage, B3_NoShrinkage, computeShrinkageStrainVector(), computeTotalAverageShrinkageStrainVector(), oofem::GaussPoint::giveMaterialMode(), oofem::TimeStep::givePreviousStep(), oofem::StructuralMaterial::giveSizeOfVoigtSymVector(), oofem::TimeStep::isTheFirstStep(), OOFEM_ERROR, oofem::FloatArray::resize(), shMode, oofem::FloatArray::subtract(), and oofem::FloatArray::zero().

Referenced by ~B3Material().

void oofem::B3Material::giveThermalDilatationVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep 
)
virtual

Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis.

Parameters
answerVector of thermal dilatation coefficients.
gpIntegration point.
tStepTime step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::RheoChainMaterial.

Definition at line 129 of file b3mat.C.

References oofem::FloatArray::at(), oofem::FloatArray::resize(), talpha, and oofem::FloatArray::zero().

Referenced by giveInputRecordName().

virtual int oofem::B3Material::hasIncrementalShrinkageFormulation ( )
inlineprotectedvirtual

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.

Reimplemented from oofem::MaxwellChainMaterial.

Definition at line 116 of file b3mat.h.

References computeShrinkageStrainVector(), computeTotalAverageShrinkageStrainVector(), inverse_sorption_isotherm(), and predictParametersFrom().

IRResultType oofem::B3Material::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
irInput record to initialize from.
Returns
IRResultType

Reimplemented from oofem::MaxwellChainMaterial.

Definition at line 46 of file b3mat.C.

References _IFT_B3Material_a, _IFT_B3Material_ac, _IFT_B3Material_alpha1, _IFT_B3Material_alpha2, _IFT_B3Material_at, _IFT_B3Material_cc, _IFT_B3Material_EpsSinf, _IFT_B3Material_es0, _IFT_B3Material_fc, _IFT_B3Material_hum, _IFT_B3Material_ks, _IFT_B3Material_kt, _IFT_B3Material_mode, _IFT_B3Material_ncoeff, _IFT_B3Material_q1, _IFT_B3Material_q2, _IFT_B3Material_q3, _IFT_B3Material_q4, _IFT_B3Material_q5, _IFT_B3Material_r, _IFT_B3Material_rprime, _IFT_B3Material_shmode, _IFT_B3Material_t0, _IFT_B3Material_talpha, _IFT_B3Material_vs, _IFT_B3Material_wc, _IFT_B3Material_wh, a, at, B3_AverageShrinkage, B3_PointShrinkage, E28, EpsSinf, es0, hum, oofem::MaxwellChainMaterial::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_OK, ks, kt, n, predictParametersFrom(), q1, q2, q3, q4, q5, r, rprime, shMode, t0, talpha, vs, w, and w_h.

Referenced by giveInputRecordName().

double oofem::B3Material::inverse_sorption_isotherm ( double  w)
protected

Function calculates relative humidity from water content (inverse relation form sorption isotherm).

Relative humidity (phi) is from range 0.2 - 0.98 !!! Sorption isotherm by C. R. Pedersen (1990), Combined heat and moisture transfer in building constructions, PhD-thesis, Technical University of Denmark, Lingby.

Parameters
wWater content (kg/kg).

Definition at line 453 of file b3mat.C.

References a, n, OOFEM_ERROR, and w_h.

Referenced by computeShrinkageStrainVector(), and hasIncrementalShrinkageFormulation().

void oofem::B3Material::predictParametersFrom ( double  fc,
double  c,
double  wc,
double  ac,
double  t0,
double  alpha1,
double  alpha2 
)
protected

Member Data Documentation

double oofem::B3Material::a
protected

Constant (obtained from experiments) A [Pedersen, 1990].

Definition at line 96 of file b3mat.h.

Referenced by initializeFrom(), and inverse_sorption_isotherm().

double oofem::B3Material::at
protected

Definition at line 90 of file b3mat.h.

Referenced by computeShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::E28
protected

Definition at line 81 of file b3mat.h.

Referenced by computeTotalAverageShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::EpsSinf
protected
double oofem::B3Material::es0
protected

Definition at line 90 of file b3mat.h.

Referenced by computeShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::hum
protected
double oofem::B3Material::ks
protected
double oofem::B3Material::kt
protected
double oofem::B3Material::n
protected

Constant-exponent (obtained from experiments) n [Pedersen, 1990].

Definition at line 95 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and inverse_sorption_isotherm().

double oofem::B3Material::q1
protected

Definition at line 82 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and predictParametersFrom().

double oofem::B3Material::q2
protected

Definition at line 82 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and predictParametersFrom().

double oofem::B3Material::q3
protected

Definition at line 82 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and predictParametersFrom().

double oofem::B3Material::q4
protected

Definition at line 82 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and predictParametersFrom().

double oofem::B3Material::q5
protected

Definition at line 82 of file b3mat.h.

Referenced by computeCreepFunction(), initializeFrom(), and predictParametersFrom().

double oofem::B3Material::r
protected

Definition at line 90 of file b3mat.h.

Referenced by computeCreepFunction(), computeShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::rprime
protected

Definition at line 90 of file b3mat.h.

Referenced by computeShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::t0
protected

Age when drying begins (in days)

Definition at line 79 of file b3mat.h.

Referenced by computeCreepFunction(), computeShrinkageStrainVector(), computeTotalAverageShrinkageStrainVector(), and initializeFrom().

double oofem::B3Material::talpha
protected

Thermal dilatation coeff.

Definition at line 97 of file b3mat.h.

Referenced by giveThermalDilatationVector(), and initializeFrom().

double oofem::B3Material::vs
protected
double oofem::B3Material::w
protected

Definition at line 81 of file b3mat.h.

Referenced by initializeFrom(), and predictParametersFrom().

double oofem::B3Material::w_h
protected

Constant water content (obtained from experiments) w_h [Pedersen, 1990].

Definition at line 94 of file b3mat.h.

Referenced by initializeFrom(), and inverse_sorption_isotherm().


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

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