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

This class implements the extended B3 model for concrete creep and shrinkage based on the microprestress-solidification theory. More...

#include <mps.h>

+ Inheritance diagram for oofem::MPSMaterial:
+ Collaboration diagram for oofem::MPSMaterial:

Public Member Functions

 MPSMaterial (int n, Domain *d)
 
virtual ~MPSMaterial ()
 
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...
 
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...
 
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::KelvinChainSolidMaterial
 KelvinChainSolidMaterial (int n, Domain *d)
 
virtual ~KelvinChainSolidMaterial ()
 
void computeHiddenVars (GaussPoint *gp, TimeStep *tStep)
 
virtual int hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. 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 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 hasMaterialModeCapability (MaterialMode mode)
 Tests if material supports material mode. 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 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
 
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 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 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  coupledAnalysisType { Basic, MPS_full, MPS_humidity, MPS_temperature }
 

Protected Member Functions

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 FloatArraygiveDiscreteTimes ()
 
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...
 
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 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...
 
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...
 
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...
 
Domaindomain
 Link to domain object, useful for communicating with other FEM components. More...
 

Friends

class RankineMPSmat
 

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...
 
- 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 extended B3 model for concrete creep and shrinkage based on the microprestress-solidification theory.

The implementation exploits a solidifying Kelvin chain. Creep is affected by variable temperature and humidity. Comparing to other material models for concrete creep MPS material model is unit independent (except parameters corresponding to concrete strength and composition: fc, c, wc, ac ). In the input record is is necessary to specify time factor equal to 1!!!

Definition at line 204 of file mps.h.

Member Enumeration Documentation

Enumerator
Basic 
MPS_full 
MPS_humidity 
MPS_temperature 

Definition at line 217 of file mps.h.

Constructor & Destructor Documentation

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

Definition at line 258 of file mps.h.

virtual oofem::MPSMaterial::~MPSMaterial ( )
inlinevirtual

Definition at line 259 of file mps.h.

Member Function Documentation

void oofem::MPSMaterial::computeB4AutogenousShrinkageStrainVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep 
)
protected

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)

Definition at line 1270 of file mps.C.

References oofem::FloatArray::at(), oofem::MPSMaterialStatus::giveEquivalentTime(), oofem::TimeStep::giveIntrinsicTime(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralMaterial::giveReducedSymVectorForm(), oofem::TimeStep::giveTimeIncrement(), oofem::TimeStep::isTheFirstStep(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

double oofem::MPSMaterial::computeBetaMu ( GaussPoint gp,
TimeStep tStep,
int  Mu 
)
protectedvirtual

factors for exponential algorithm

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 794 of file mps.C.

References oofem::TimeStep::giveTimeIncrement().

void oofem::MPSMaterial::computeCharCoefficients ( FloatArray answer,
double  tPrime,
GaussPoint gp,
TimeStep tStep 
)
protectedvirtual

Evaluation of characteristic moduli of the non-aging Kelvin chain.

Implements oofem::RheoChainMaterial.

Definition at line 653 of file mps.C.

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

void oofem::MPSMaterial::computeCharTimes ( )
protectedvirtual

Evaluation of characteristic times.

Reimplemented from oofem::RheoChainMaterial.

Definition at line 609 of file mps.C.

References oofem::RheoChainMaterial::giveEndOfTimeOfInterest(), and oofem::RheoChainMaterialStatus::nUnits.

double oofem::MPSMaterial::computeCreepFunction ( double  t,
double  t_prime,
GaussPoint gp,
TimeStep tStep 
)
virtual

Evaluation of the basic creep compliance function - can be used to compute elastic modulus in derived damage material.

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 582 of file mps.C.

Referenced by oofem::MPSDamMaterial::giveRealStressVector().

double oofem::MPSMaterial::computeEquivalentTime ( GaussPoint gp,
TimeStep tStep,
int  option 
)
protected

Computes equivalent time at given time step and GP.

If option == 0, equivalentTime is evaluated in the middle of the time step (to determine solidified ratio). If option == 1, equivalentTime is evaluated at the end of the time step. (for updating).

Definition at line 1542 of file mps.C.

References oofem::MPSMaterialStatus::giveEquivalentTime(), oofem::TimeStep::giveIntrinsicTime(), oofem::TimeStep::giveTimeIncrement(), oofem::TimeStep::isTheFirstStep(), and OOFEM_ERROR.

Referenced by oofem::MPSDamMaterial::initDamagedFib().

void oofem::MPSMaterial::computeFibAutogenousShrinkageStrainVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep 
)
protected
double oofem::MPSMaterial::computeLambdaMu ( GaussPoint gp,
TimeStep tStep,
int  Mu 
)
protectedvirtual

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 818 of file mps.C.

References oofem::TimeStep::giveTimeIncrement().

void oofem::MPSMaterial::computePointShrinkageStrainVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep 
)
protected

Evaluation of the shrinkageStrainVector - shrinkage is fully dependent on humidity rate in given GP.

Definition at line 1172 of file mps.C.

References oofem::FloatArray::at(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralMaterial::giveReducedSymVectorForm(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

double oofem::MPSMaterial::computePsiE ( GaussPoint gp,
TimeStep tStep 
)
protected

Evaluation of the factor transforming real time to equivalent time (effect on the solidified volume)

Definition at line 1515 of file mps.C.

References OOFEM_ERROR.

double oofem::MPSMaterial::computePsiR ( GaussPoint gp,
TimeStep tStep,
int  option 
)
protected

Evaluation of the factor transforming real time to reduced time (effect on the flow term) option = 0 ...

beginning of the time step option = 1 ... end of the time step option = 2 ... average value

Definition at line 1463 of file mps.C.

References OOFEM_ERROR, and oofem::MPSMaterialStatus::T.

double oofem::MPSMaterial::computePsiS ( GaussPoint gp,
TimeStep tStep 
)
protected

Evaluation of the factor transforming real time to reduced time (effect on the evolution of microprestress)

Definition at line 1489 of file mps.C.

References OOFEM_ERROR.

double oofem::MPSMaterial::computeSolidifiedVolume ( GaussPoint gp,
TimeStep tStep 
)
protectedvirtual

Evaluation of the relative volume of the solidified material.

Implements oofem::KelvinChainSolidMaterial.

Definition at line 772 of file mps.C.

References oofem::TimeStep::giveTargetTime(), and oofem::TimeStep::giveTimeIncrement().

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

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

Parameters
gpIntegration point where newly created status will be stored.
Returns
Reference to new status.

Reimplemented from oofem::KelvinChainSolidMaterial.

Reimplemented in oofem::MPSDamMaterial.

Definition at line 536 of file mps.C.

References oofem::FEMComponent::giveDomain(), oofem::IntegrationPointStatus::gp, oofem::MPSMaterialStatus::MPSMaterialStatus(), and oofem::RheoChainMaterialStatus::nUnits.

virtual const char* oofem::MPSMaterial::giveClassName ( ) const
inlinevirtual
void oofem::MPSMaterial::giveEigenStrainVector ( FloatArray answer,
GaussPoint gp,
TimeStep tStep,
ValueModeType  mode 
)
protectedvirtual

Computes, for the given integration point, the strain vector induced by the stress history (typically creep strain).

Parameters
answerComputed strains.
gpIntegration point.
tStepTime step (most models are able to respond only when tStep is the current time step).
modeDetermines response mode.

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 1095 of file mps.C.

References oofem::FloatArray::add(), oofem::FloatArray::beProductOf(), oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::MPSMaterialStatus::giveFlowTermViscosity(), oofem::TimeStep::giveIntrinsicTime(), oofem::TimeStep::giveTimeIncrement(), oofem::RheoChainMaterialStatus::giveViscoelasticStressVector(), oofem::TimeStep::isTheFirstStep(), OOFEM_ERROR, oofem::MPSMaterialStatus::setCreepStrainIncrement(), and oofem::FloatArray::times().

double oofem::MPSMaterial::giveHumidity ( GaussPoint gp,
TimeStep tStep,
int  option 
)
protected
double oofem::MPSMaterial::giveInitViscosity ( TimeStep tStep)
protected

Returns initial value of the flow term viscosity.

Definition at line 1084 of file mps.C.

References oofem::TimeStep::giveTimeIncrement(), and OOFEM_ERROR.

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

Implements oofem::FEMComponent.

Reimplemented in oofem::MPSDamMaterial.

Definition at line 261 of file mps.h.

References _IFT_MPSMaterial_Name.

int oofem::MPSMaterial::giveIPValue ( FloatArray answer,
GaussPoint gp,
InternalStateType  type,
TimeStep tStep 
)
virtual

Returns the integration point corresponding value in Reduced form.

Parameters
answerContain corresponding ip value, zero sized if not available.
gpIntegration point to which the value refers.
typeDetermines the type of internal variable.
tStepDetermines the time step.
Returns
Nonzero if the assignment can be done, zero if this type of variable is not supported.

Reimplemented from oofem::RheoChainMaterial.

Reimplemented in oofem::MPSDamMaterial.

Definition at line 1577 of file mps.C.

References oofem::FloatArray::at(), oofem::MPSMaterialStatus::giveAutogenousShrinkageStrain(), oofem::MPSMaterialStatus::giveCreepStrain(), oofem::MPSMaterialStatus::giveDryingShrinkageStrain(), oofem::StructuralMaterial::giveFullSymVectorForm(), oofem::RheoChainMaterial::giveIPValue(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

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

void oofem::MPSMaterial::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
answerStress vector in reduced form. For large deformations it is treated as the second Piola-Kirchoff stress.
gpIntegration point.
reducedStrainStrain vector in reduced form. For large deformations it is treated as the Green-Lagrange strain.
tStepCurrent time step (most models are able to respond only when tStep is current time step).
Todo:
Move this to StructuralCrossSection ?

Reimplemented from oofem::KelvinChainSolidMaterial.

Reimplemented in oofem::MPSDamMaterial.

Definition at line 430 of file mps.C.

References oofem::KelvinChainSolidMaterial::giveRealStressVector(), and oofem::MPSMaterialStatus::setEquivalentTimeTemp().

Referenced by oofem::MPSDamMaterial::giveRealStressVector().

void oofem::MPSMaterial::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::KelvinChainSolidMaterial.

Definition at line 447 of file mps.C.

References oofem::FloatArray::add(), oofem::FloatArray::at(), oofem::MPSMaterialStatus::giveAutogenousShrinkageStrain(), oofem::MPSMaterialStatus::giveDryingShrinkageStrain(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralMaterial::giveReducedSymVectorForm(), oofem::FloatArray::giveSize(), oofem::StructuralMaterial::giveSizeOfVoigtSymVector(), OOFEM_ERROR, oofem::FloatArray::resize(), oofem::MPSMaterialStatus::setTempAutogenousShrinkageStrain(), oofem::MPSMaterialStatus::setTempDryingShrinkageStrain(), and oofem::FloatArray::zero().

double oofem::MPSMaterial::giveTemperature ( GaussPoint gp,
TimeStep tStep,
int  option 
)
protected
virtual int oofem::MPSMaterial::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::KelvinChainSolidMaterial.

Definition at line 303 of file mps.h.

IRResultType oofem::MPSMaterial::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

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::KelvinChainSolidMaterial.

Reimplemented in oofem::MPSDamMaterial.

Definition at line 192 of file mps.C.

References _IFT_MPSMaterial_ac, _IFT_MPSMaterial_alpha_as, _IFT_MPSMaterial_alphae, _IFT_MPSMaterial_alphar, _IFT_MPSMaterial_alphas, _IFT_MPSMaterial_B4_alpha, _IFT_MPSMaterial_B4_cem_type, _IFT_MPSMaterial_B4_eps_au_infty, _IFT_MPSMaterial_B4_r_t, _IFT_MPSMaterial_B4_tau_au, _IFT_MPSMaterial_cc, _IFT_MPSMaterial_coupledanalysistype, _IFT_MPSMaterial_eps_cas0, _IFT_MPSMaterial_fc, _IFT_MPSMaterial_k3, _IFT_MPSMaterial_ksh, _IFT_MPSMaterial_ktc, _IFT_MPSMaterial_ktm, _IFT_MPSMaterial_lambda0, _IFT_MPSMaterial_mode, _IFT_MPSMaterial_mus, _IFT_MPSMaterial_p, _IFT_MPSMaterial_p_tilde, _IFT_MPSMaterial_q1, _IFT_MPSMaterial_q2, _IFT_MPSMaterial_q3, _IFT_MPSMaterial_q4, _IFT_MPSMaterial_qetor, _IFT_MPSMaterial_qrtor, _IFT_MPSMaterial_qstor, _IFT_MPSMaterial_sh_a, _IFT_MPSMaterial_sh_hC, _IFT_MPSMaterial_sh_n, _IFT_MPSMaterial_stiffnessfactor, _IFT_MPSMaterial_t0, _IFT_MPSMaterial_temperInCelsius, _IFT_MPSMaterial_wc, _IFT_RheoChainMaterial_timefactor, oofem::InputRecord::hasField(), oofem::KelvinChainSolidMaterial::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_BAD_FORMAT, oofem::IRRT_OK, OOFEM_ERROR, and OOFEM_WARNING.

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

void oofem::MPSMaterial::predictParametersFrom ( double  fc,
double  c,
double  wc,
double  ac 
)
protected

Definition at line 546 of file mps.C.

References oofem::FEMComponent::number, and OOFEM_LOG_DEBUG.

Friends And Related Function Documentation

friend class RankineMPSmat
friend

Definition at line 348 of file mps.h.

Member Data Documentation

double oofem::MPSMaterial::alphaE
protected

parameters that control the effect of humidity on rates of hydration, creep and microprestress relaxation

Definition at line 240 of file mps.h.

double oofem::MPSMaterial::alphaR
protected

Definition at line 240 of file mps.h.

double oofem::MPSMaterial::alphaS
protected

Definition at line 240 of file mps.h.

double oofem::MPSMaterial::b4_alpha
protected

Definition at line 248 of file mps.h.

double oofem::MPSMaterial::b4_eps_au_infty
protected

parameters for autogenous shrinkage according to B4 model

Definition at line 248 of file mps.h.

double oofem::MPSMaterial::b4_r_t
protected

Definition at line 248 of file mps.h.

double oofem::MPSMaterial::b4_tau_au
protected

Definition at line 248 of file mps.h.

enum oofem::MPSMaterial::coupledAnalysisType oofem::MPSMaterial::CoupledAnalysis
protected
double oofem::MPSMaterial::ct
protected

parameter reducing creep effects of thermal cycling

Definition at line 234 of file mps.h.

double oofem::MPSMaterial::eps_cas0
protected

parameter for autogenous shrinkage according to fib MC 2010

Definition at line 246 of file mps.h.

double oofem::MPSMaterial::EspringVal
protected

Definition at line 219 of file mps.h.

double oofem::MPSMaterial::k3
protected

Definition at line 228 of file mps.h.

double oofem::MPSMaterial::kSh
protected

additional parameters for sorption isotherm (used to compute relative humidity from water content)

proportionality parameter between change of humidity and shrinkage

Definition at line 226 of file mps.h.

double oofem::MPSMaterial::kTc
protected

parameter reducing creep effects of thermal cycling (replaces kTm in such case)

Definition at line 232 of file mps.h.

double oofem::MPSMaterial::kTm
protected

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

Definition at line 230 of file mps.h.

double oofem::MPSMaterial::lambda0
protected

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

Definition at line 214 of file mps.h.

Referenced by oofem::MPSDamMaterial::computeFractureEnergy(), and oofem::MPSDamMaterial::computeTensileStrength().

double oofem::MPSMaterial::muS
protected

fluidity parameter used in viscosity evolution equation

Definition at line 228 of file mps.h.

double oofem::MPSMaterial::p
protected

exponent in the microprestress/viscosity governing equation

Definition at line 242 of file mps.h.

double oofem::MPSMaterial::q1
protected

compliances of the B3 model

Definition at line 212 of file mps.h.

double oofem::MPSMaterial::q2
protected

Definition at line 212 of file mps.h.

double oofem::MPSMaterial::q3
protected

Definition at line 212 of file mps.h.

double oofem::MPSMaterial::q4
protected

Definition at line 212 of file mps.h.

double oofem::MPSMaterial::QEtoR
protected

activation energies

Definition at line 238 of file mps.h.

double oofem::MPSMaterial::QRtoR
protected

Definition at line 238 of file mps.h.

double oofem::MPSMaterial::QStoR
protected

Definition at line 238 of file mps.h.

double oofem::MPSMaterial::roomTemperature
protected

reference room temperature for MPS algorithm [K]

Definition at line 236 of file mps.h.

double oofem::MPSMaterial::sh_a
protected

parameters for nonlinear shrinkage function

Definition at line 244 of file mps.h.

double oofem::MPSMaterial::sh_hC
protected

Definition at line 244 of file mps.h.

double oofem::MPSMaterial::sh_n
protected

Definition at line 244 of file mps.h.

double oofem::MPSMaterial::stiffnessFactor
protected

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

Definition at line 251 of file mps.h.

Referenced by oofem::MPSDamMaterial::computeFractureEnergy(), and oofem::MPSDamMaterial::computeTensileStrength().

double oofem::MPSMaterial::t0
protected

age when temperature or humidity starts to change

Definition at line 210 of file mps.h.

double oofem::MPSMaterial::temperScaleDifference
protected

0 for Kelvin, 273.15 for Celsius

Definition at line 254 of file mps.h.


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

This page is part of the OOFEM documentation. Copyright (c) 2011 Borek Patzak
Project e-mail: info@oofem.org
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