OOFEM 3.0
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oofem::MPSMaterial Class Reference

#include <mps.h>

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

Public Member Functions

 MPSMaterial (int n, Domain *d)
const char * giveInputRecordName () const override
const char * giveClassName () const override
void initializeFrom (InputRecord &ir) override
int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
void giveRealStressVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep) const override
void giveShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const override
double computeCreepFunction (double t, double t_prime, GaussPoint *gp, TimeStep *tStep) const override
 Evaluation of the basic creep compliance function - can be used to compute elastic modulus in derived damage material.
double giveEquivalentTime (GaussPoint *gp, TimeStep *tStep) const override
 By default returns equivalent time in the middle of the time step.
std::unique_ptr< MaterialStatusCreateStatus (GaussPoint *gp) const override
Public Member Functions inherited from oofem::KelvinChainSolidMaterial
 KelvinChainSolidMaterial (int n, Domain *d)
void computeHiddenVars (GaussPoint *gp, TimeStep *tStep) const
Public Member Functions inherited from oofem::RheoChainMaterial
 RheoChainMaterial (int n, Domain *d)
virtual ~RheoChainMaterial ()
void giveRealStressVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep) const override
FloatArrayF< 6 > giveRealStressVector_3d (const FloatArrayF< 6 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
FloatArrayF< 4 > giveRealStressVector_PlaneStrain (const FloatArrayF< 4 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector_3d.
FloatArrayF< 3 > giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 1 > giveRealStressVector_1d (const FloatArrayF< 1 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 2 > giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 5 > giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &strain, GaussPoint *gp, TimeStep *tStep) const override
 Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 6 > giveThermalDilatationVector (GaussPoint *gp, TimeStep *tStep) const override
bool hasMaterialModeCapability (MaterialMode mode) const override
bool hasCastingTimeSupport () const override
const char * giveClassName () const override
void initializeFrom (InputRecord &ir) override
int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
void saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp) override
void restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp) override
FloatMatrixF< 6, 6 > give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 3, 3 > givePlaneStressStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 4, 4 > givePlaneStrainStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 1, 1 > give1dStressStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override
FloatArray computeStressIndependentStrainVector (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const override
std::unique_ptr< MaterialStatusCreateStatus (GaussPoint *gp) const override
double giveAlphaOne () const
double giveAlphaTwo () const
double givePoissonsRatio () const
 Returns Poisson's ratio.
bool isActivated (TimeStep *tStep) const override
 Extended meaning: returns true if the material is cast (target time > casting time) or the precasing time mat is defined.
Public Member Functions inherited from oofem::StructuralMaterial
 StructuralMaterial (int n, Domain *d)
bool hasMaterialModeCapability (MaterialMode mode) const override
const char * giveClassName () const override
void initializeFrom (InputRecord &ir) override
void giveInputRecord (DynamicInputRecord &input) override
void giveCharacteristicMatrix (FloatMatrix &answer, MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const override
 Returns characteristic matrix of the receiver.
void giveCharacteristicVector (FloatArray &answer, FloatArray &flux, MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const override
 Returns characteristic vector of the receiver.
virtual void giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArray giveRealStressVector_StressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint *gp, TimeStep *tStep) const
 Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArray giveRealStressVector_ShellStressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 2 > giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 > giveRealStressVector_Fiber (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 > giveRealStressVector_2dPlateSubSoil (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
 Default implementation is not provided.
virtual FloatArrayF< 6 > giveRealStressVector_3dBeamSubSoil (const FloatArrayF< 6 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 9 > giveFirstPKStressVector_3d (const FloatArrayF< 9 > &vF, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
virtual FloatArrayF< 5 > giveFirstPKStressVector_PlaneStrain (const FloatArrayF< 5 > &vF, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveFirstPKStressVector_3d.
virtual FloatArray giveFirstPKStressVector_StressControl (const FloatArray &reducedvF, const IntArray &FControl, GaussPoint *gp, TimeStep *tStep) const
 Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArrayF< 4 > giveFirstPKStressVector_PlaneStress (const FloatArrayF< 4 > &vF, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveFirstPKStressVector_StressControl.
virtual FloatArrayF< 1 > giveFirstPKStressVector_1d (const FloatArrayF< 1 > &vF, GaussPoint *gp, TimeStep *tStep) const
 Default implementation relies on giveFirstPKStressVector_StressControl.
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 giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
double giveReferenceTemperature ()
FloatArrayF< 6 > computeStressIndependentStrainVector_3d (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const
virtual void giveStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 9, 9 > give3dMaterialStiffnessMatrix_dPdF (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
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) const
int setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type) override
int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
virtual FloatMatrixF< 4, 4 > givePlaneStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 5, 5 > givePlaneStrainStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 1, 1 > give1dStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 2, 2 > give2dBeamLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 5, 5 > givePlateLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 3, 3 > giveFiberStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 3, 3 > give2dPlateSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 6, 6 > give3dBeamSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
Public Member Functions inherited from oofem::Material
 Material (int n, Domain *d)
virtual ~Material ()=default
 Destructor.
virtual bool isCharacteristicMtrxSymmetric (MatResponseMode rMode) const
virtual double giveCharacteristicValue (MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const
 Returns characteristic value of the receiver.
virtual double give (int aProperty, GaussPoint *gp) const
virtual bool hasProperty (int aProperty, GaussPoint *gp) const
virtual void modifyProperty (int aProperty, double value, GaussPoint *gp)
double giveCastingTime () const
void printYourself () override
 Prints receiver state on stdout. Useful for debugging.
int checkConsistency () override
virtual void restoreConsistency (GaussPoint *gp)
virtual int initMaterial (Element *element)
virtual MaterialStatusgiveStatus (GaussPoint *gp) const
virtual int packUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
virtual int unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
virtual int estimatePackSize (DataStream &buff, GaussPoint *ip)
virtual double predictRelativeComputationalCost (GaussPoint *gp)
virtual double predictRelativeRedistributionCost (GaussPoint *gp)
virtual void initTempStatus (GaussPoint *gp) const
void saveContext (DataStream &stream, ContextMode mode) override
void restoreContext (DataStream &stream, ContextMode mode) override
Public Member Functions inherited from oofem::FEMComponent
 FEMComponent (int n, Domain *d)
virtual ~FEMComponent ()=default
 Virtual destructor.
DomaingiveDomain () const
virtual void setDomain (Domain *d)
int giveNumber () const
void setNumber (int num)
virtual void updateLocalNumbering (EntityRenumberingFunctor &f)
virtual void initializeFrom (InputRecord &ir, int priority)
virtual void initializeFinish ()
virtual void postInitialize ()
 Performs post initialization steps. Called after all components are created and initialized.
virtual void printOutputAt (FILE *file, TimeStep *tStep)
virtual InterfacegiveInterface (InterfaceType t)
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros).

Protected Types

enum  coupledAnalysisType { Basic , MPS_full , MPS_humidity , MPS_temperature }

Protected Member Functions

void predictParametersFrom (double, double, double, double)
void computeCharTimes () override
 Evaluation of characteristic times.
FloatArray computeCharCoefficients (double tPrime, GaussPoint *gp, TimeStep *tStep) const override
 Evaluation of characteristic moduli of the non-aging Kelvin chain.
double giveEModulus (GaussPoint *gp, TimeStep *tStep) const override
 Evaluation of the incremental modulus.
double computeSolidifiedVolume (GaussPoint *gp, TimeStep *tStep) const override
 Evaluation of the relative volume of the solidified material.
double computeBetaMu (GaussPoint *gp, TimeStep *tStep, int Mu) const override
 factors for exponential algorithm
double computeLambdaMu (GaussPoint *gp, TimeStep *tStep, int Mu) const override
double computeFlowTermViscosity (GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the flow term viscosity.
double giveInitViscosity (TimeStep *tStep) const
 Returns initial value of the flow term viscosity.
void giveEigenStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const override
bool hasIncrementalShrinkageFormulation () const override
void computePointShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the shrinkageStrainVector - shrinkage is fully dependent on humidity rate in given GP.
void computeFibAutogenousShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the autogenousShrinkageStrainVector according to fib MC 2010 - autogenous shrinkage is fully dependent on the equivalent age at given GP.
void computeB4AutogenousShrinkageStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep) const
 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).
void computeAutogenousShrinkageDefinedByTF (FloatArray &answer, GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the autogenousShrinkageStrainVector given by an auxiliary time function (autoShrinkageTF parameter). The time scale in that time function corresponds to the equivalent material age.
double giveHumidity (GaussPoint *gp, TimeStep *tStep, int option) const
double giveHumidityNano (GaussPoint *gp, TimeStep *tStep, int option) const
double giveTemperature (GaussPoint *gp, TimeStep *tStep, int option) const
double computePsiR (GaussPoint *gp, TimeStep *tStep, int option) const
double computePsiS (GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the factor transforming real time to reduced time (effect on the evolution of microprestress).
double computePsiE (GaussPoint *gp, TimeStep *tStep) const
 Evaluation of the factor transforming real time to equivalent time (effect on the solidified volume).
double computeEquivalentTime (GaussPoint *gp, TimeStep *tStep, int option) const
Protected Member Functions inherited from oofem::RheoChainMaterial
const FloatArraygiveDiscreteTimes () const
void computeDiscreteRelaxationFunction (FloatArray &answer, const FloatArray &tSteps, double t0, double tr, GaussPoint *gp, TimeStep *tStep) const
void giveUnitComplianceMatrix (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep) const
 Evaluation of elastic compliance matrix for unit Young's modulus.
void giveUnitStiffnessMatrix (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep) const
 Evaluation of elastic stiffness matrix for unit Young's modulus.
virtual void updateEparModuli (double tPrime, GaussPoint *gp, TimeStep *tStep) const
 Update of partial moduli of individual chain units.
double giveEparModulus (int iChain) const
 Access to partial modulus of a given unit.
double giveCharTime (int) const
 Access to the characteristic time of a given unit.
virtual double giveCharTimeExponent (int i) const
 Exponent to be used with the char time of a given unit, usually = 1.0.
StructuralMaterialgiveLinearElasticMaterial ()
 Access to the underlying linear elastic material with unit Young's modulus.
double giveEndOfTimeOfInterest ()
 Access to the time up to which the response should be accurate.
void computeTrueStressIndependentStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const

Protected Attributes

double t0 = 0.
 age when temperature or humidity starts to change
double q1 = 0.
 compliances of the B3 model
double q2 = 0.
double q3 = 0.
double q4 = 0.
double lambda0 = 0.
 constant equal to one day in time units of analysis (eg. 86400 if the analysis runs in seconds)
enum oofem::MPSMaterial::coupledAnalysisType CoupledAnalysis
double EspringVal = 0.
double kSh = 0.
 additional parameters for sorption isotherm (used to compute relative humidity from water content)
double muS = 0.
 fluidity parameter used in viscosity evolution equation
double k3 = 0.
double kTm = 0.
 kTm replaces ln(h) on RHS of the differential equation describing evolution of MPS
double kTc = 0.
 parameter reducing creep effects of thermal cycling (replaces kTm in such case)
double khc = 0.
 parameter reducing creep effects of hygral cycling (0 = complete reduction, 1 = no reduction, default value)
double roomTemperature = 0.
 parameter reducing creep effects of thermal cycling
double QEtoR = 0.
 activation energies
double QRtoR = 0.
double QStoR = 0.
double alphaE = 0.
 parameters that control the effect of humidity on rates of hydration, creep and microprestress relaxation
double alphaR = 0.
double alphaS = 0.
double p = 0.
 exponent in the microprestress/viscosity governing equation
double sh_a = 0.
 parameters for nonlinear shrinkage function
double sh_hC = 0.
double sh_n = 0.
bool timeDependent_ksh = false
 flag activating equivalent-time-dependence of shrinkage coefficient
FloatArray ksh_h
 nonlinear shrinkage function - user-defined piecewise-linear function
FloatArray ksh_fh
double eps_cas0 = 0.
 parameter for autogenous shrinkage according to fib MC 2010
double b4_eps_au_infty = 0.
 parameters for autogenous shrinkage according to B4 model
double b4_tau_au = 0.
double b4_alpha = 0.
double b4_r_t = 0.
double stiffnessFactor = 0.
 scaling factor 1. for Pa, 1.e6 for MPa - only for empirical formulas - q1-q4 and ft and gf
double temperScaleDifference = 0.
 0 for Kelvin, 273.15 for Celsius
int hydrationTimescaleTF
int autoShrinkageTF
double tau_nano = 0.
Protected Attributes inherited from oofem::RheoChainMaterial
double talpha = 0.
 thermal dilatation coeff.
int nUnits = 0
 Number of (Maxwell or Kelvin) units in the rheologic chain.
double relMatAge = 0.
 Physical age of the material at castingTime.
bool lattice = false
double nu = 0.
 Poisson's ratio (assumed to be constant, unaffected by creep).
double alphaOne = 0.
 Parameters for the lattice model.
double alphaTwo = 0.
double EparValTime = -1.
 Time for which the partial moduli of individual units have been evaluated.
double begOfTimeOfInterest = 0.
 Time from which the model should give a good approximation. Optional field. Default value is 0.1 [day].
double endOfTimeOfInterest = 0.
 Time (age???) up to which the model should give a good approximation.
StructuralMateriallinearElasticMaterial = nullptr
 Associated linearElasticMaterial, with E = 1.
FloatArray EparVal
 Partial moduli of individual units.
FloatArray charTimes
 Characteristic times of individual units (relaxation or retardation times).
FloatArray discreteTimeScale
 Times at which the errors are evaluated if the least-square method is used.
double timeFactor = 0.
Protected Attributes inherited from oofem::StructuralMaterial
double referenceTemperature = 0.
 Reference temperature (temperature, when material has been built into structure).
MatResponseMode SCStiffMode = TangentStiffness
 stifness mode used in stress control
double SCRelTol = 1.e-3
 relative tolerance for stress control
double SCAbsTol = 1.e-12
 absolute stress tolerance for stress control
int SCMaxiter = 100000
 maximum iterations for stress-control
Protected Attributes inherited from oofem::Material
Dictionary propertyDictionary
double castingTime
int preCastingTimeMat
 Material existing before casting time - optional parameter, zero by default.
Protected Attributes inherited from oofem::FEMComponent
int number
 Component number.
Domaindomain
 Link to domain object, useful for communicating with other FEM components.

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 FloatMatrixF< 9, 9 > convert_dSdE_2_dPdF_3D (const FloatMatrixF< 6, 6 > &dSdE, const FloatArrayF< 6 > &S, const FloatArrayF< 9 > &F)
static FloatMatrixF< 5, 5 > convert_dSdE_2_dPdF_PlaneStrain (const FloatMatrixF< 4, 4 > &dSdE, const FloatArrayF< 4 > &S, const FloatArrayF< 5 > &F)
static FloatMatrixF< 4, 4 > convert_dSdE_2_dPdF_PlaneStress (const FloatMatrixF< 3, 3 > &dSdE, const FloatArrayF< 3 > &S, const FloatArrayF< 4 > &F)
static FloatMatrixF< 1, 1 > convert_dSdE_2_dPdF_1D (const FloatMatrixF< 1, 1 > &dSdE, const FloatArrayF< 1 > &S, const FloatArrayF< 1 > &F)
static void computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
 Common functions for convenience.
static FloatArrayF< 3 > computePrincipalValues (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 3 > computePrincipalValues (double I1, double I2, double I3)
static void computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
static std::pair< FloatArrayF< 3 >, FloatMatrixF< 3, 3 > > computePrincipalValDir (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 6 > computeDeviator (const FloatArrayF< 6 > &s)
static std::pair< FloatArrayF< 6 >, double > computeDeviatoricVolumetricSplit (const FloatArrayF< 6 > &s)
static FloatArrayF< 6 > computeDeviatoricVolumetricSum (const FloatArrayF< 6 > &dev, double mean)
static FloatArrayF< 6 > applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static FloatArrayF< 6 > applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double GModulus)
static FloatArrayF< 6 > applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 > applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double GModulus)
static FloatArrayF< 6 > applyElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 > applyElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static double computeStressNorm (const FloatArrayF< 6 > &stress)
static double computeFirstInvariant (const FloatArrayF< 6 > &s)
static double computeSecondStressInvariant (const FloatArrayF< 6 > &s)
static double computeThirdStressInvariant (const FloatArrayF< 6 > &s)
static double computeFirstCoordinate (const FloatArrayF< 6 > &s)
static double computeSecondCoordinate (const FloatArrayF< 6 > &s)
static double computeThirdCoordinate (const FloatArrayF< 6 > &s)
static int giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
static void giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int giveSizeOfVoigtVector (MaterialMode mmode)
static int giveSizeOfVoigtSymVector (MaterialMode mmode)
static void giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
 Converts the reduced symmetric Voigt vector (2nd order tensor) to full form.
static void giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
 Converts the reduced deformation gradient Voigt vector (2nd order tensor).
static void giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form.
static void giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the full symmetric Voigt vector (2nd order tensor) to reduced form.
static void giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form.
static void giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
 Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static void giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
 Converts the full symmetric Voigt matrix (4th order tensor) to reduced form.
static void giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
 Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static FloatArrayF< 6 > transformStrainVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &strain, bool transpose=false)
static FloatArrayF< 6 > transformStressVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &stress, bool transpose=false)
static double computeVonMisesStress (const FloatArray &currentStress)
static double computeVonMisesStress_3D (const FloatArrayF< 6 > &stress)
static double computeVonMisesStress_PlaneStress (const FloatArrayF< 3 > &stress)
static FloatMatrixF< 6, 6 > giveStrainVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 > give2DStrainVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static FloatMatrixF< 6, 6 > giveStressVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 > givePlaneStressVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static void sortPrincDirAndValCloseTo (FloatArray &pVal, FloatMatrix &pDir, const FloatMatrix &toPDir)
Static Public Attributes inherited from oofem::StructuralMaterial
static std::array< std::array< int, 3 >, 3 > vIindex
 Voigt index map.
static std::array< std::array< int, 3 >, 3 > svIndex
 Symmetric Voigt index map.
Static Protected Member Functions inherited from oofem::RheoChainMaterial
static FloatArray generateLogTimeScale (double from, double to, int nsteps)

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 227 of file mps.h.

Member Enumeration Documentation

◆ coupledAnalysisType

Enumerator
Basic 
MPS_full 
MPS_humidity 
MPS_temperature 

Definition at line 238 of file mps.h.

Constructor & Destructor Documentation

◆ MPSMaterial()

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

Member Function Documentation

◆ computeAutogenousShrinkageDefinedByTF()

void oofem::MPSMaterial::computeAutogenousShrinkageDefinedByTF ( FloatArray & answer,
GaussPoint * gp,
TimeStep * tStep ) const
protected

◆ computeB4AutogenousShrinkageStrainVector()

void oofem::MPSMaterial::computeB4AutogenousShrinkageStrainVector ( FloatArray & answer,
GaussPoint * gp,
TimeStep * tStep ) const
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 1334 of file mps.C.

References b4_alpha, b4_eps_au_infty, b4_r_t, b4_tau_au, computeEquivalentTime(), oofem::MPSMaterialStatus::giveEquivalentTime(), oofem::GaussPoint::giveMaterialMode(), oofem::TimeStep::givePreviousStep(), oofem::StructuralMaterial::giveReducedSymVectorForm(), oofem::Material::giveStatus(), oofem::TimeStep::giveTimeIncrement(), oofem::Material::isActivated(), oofem::TimeStep::isTheFirstStep(), and oofem::RheoChainMaterial::relMatAge.

Referenced by giveShrinkageStrainVector().

◆ computeBetaMu()

double oofem::MPSMaterial::computeBetaMu ( GaussPoint * gp,
TimeStep * tStep,
int Mu ) const
overrideprotectedvirtual

◆ computeCharCoefficients()

FloatArray oofem::MPSMaterial::computeCharCoefficients ( double tPrime,
GaussPoint * gp,
TimeStep * tStep ) const
overrideprotectedvirtual

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

Implements oofem::RheoChainMaterial.

Definition at line 689 of file mps.C.

References oofem::FloatArray::at(), oofem::RheoChainMaterial::charTimes, EspringVal, oofem::RheoChainMaterial::giveCharTime(), lambda0, oofem::RheoChainMaterial::nUnits, and q2.

◆ computeCharTimes()

void oofem::MPSMaterial::computeCharTimes ( )
overrideprotectedvirtual

◆ computeCreepFunction()

double oofem::MPSMaterial::computeCreepFunction ( double t,
double t_prime,
GaussPoint * gp,
TimeStep * tStep ) const
overridevirtual

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 619 of file mps.C.

References lambda0, q1, q2, q3, and q4.

Referenced by computePointShrinkageStrainVector(), and predictParametersFrom().

◆ computeEquivalentTime()

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

◆ computeFibAutogenousShrinkageStrainVector()

void oofem::MPSMaterial::computeFibAutogenousShrinkageStrainVector ( FloatArray & answer,
GaussPoint * gp,
TimeStep * tStep ) const
protected

◆ computeFlowTermViscosity()

◆ computeLambdaMu()

double oofem::MPSMaterial::computeLambdaMu ( GaussPoint * gp,
TimeStep * tStep,
int Mu ) const
overrideprotectedvirtual

◆ computePointShrinkageStrainVector()

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

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

Definition at line 1232 of file mps.C.

References oofem::FloatArray::at(), computeCreepFunction(), computeEquivalentTime(), giveHumidity(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralMaterial::giveReducedSymVectorForm(), kSh, ksh_fh, ksh_h, lambda0, sh_a, sh_hC, sh_n, and timeDependent_ksh.

Referenced by giveShrinkageStrainVector().

◆ computePsiE()

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

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

Definition at line 1677 of file mps.C.

References alphaE, CoupledAnalysis, oofem::FEMComponent::domain, giveHumidity(), oofem::TimeStep::giveIntrinsicTime(), giveTemperature(), hydrationTimescaleTF, MPS_full, MPS_humidity, MPS_temperature, OOFEM_ERROR, QEtoR, and roomTemperature.

Referenced by computeEquivalentTime().

◆ computePsiR()

double oofem::MPSMaterial::computePsiR ( GaussPoint * gp,
TimeStep * tStep,
int option ) const
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 1611 of file mps.C.

References alphaR, CoupledAnalysis, giveHumidity(), giveHumidityNano(), giveTemperature(), MPS_full, MPS_humidity, MPS_temperature, OOFEM_ERROR, QRtoR, roomTemperature, and tau_nano.

Referenced by computeBetaMu(), computeLambdaMu(), giveEigenStrainVector(), and giveEModulus().

◆ computePsiS()

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

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

Definition at line 1643 of file mps.C.

References alphaS, CoupledAnalysis, giveHumidity(), giveHumidityNano(), giveTemperature(), MPS_full, MPS_humidity, MPS_temperature, OOFEM_ERROR, QStoR, roomTemperature, and tau_nano.

Referenced by computeFlowTermViscosity().

◆ computeSolidifiedVolume()

double oofem::MPSMaterial::computeSolidifiedVolume ( GaussPoint * gp,
TimeStep * tStep ) const
overrideprotectedvirtual

Evaluation of the relative volume of the solidified material.

Implements oofem::KelvinChainSolidMaterial.

Definition at line 819 of file mps.C.

References Basic, oofem::Material::castingTime, computeEquivalentTime(), CoupledAnalysis, lambda0, q2, q3, and oofem::RheoChainMaterial::relMatAge.

Referenced by giveEModulus().

◆ CreateStatus()

std::unique_ptr< MaterialStatus > oofem::MPSMaterial::CreateStatus ( GaussPoint * gp) const
overridevirtual

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.

Definition at line 573 of file mps.C.

References oofem::RheoChainMaterial::nUnits.

◆ giveClassName()

const char * oofem::MPSMaterial::giveClassName ( ) const
inlineoverridevirtual
Returns
Class name of the receiver.

Reimplemented from oofem::KelvinChainSolidMaterial.

Definition at line 311 of file mps.h.

◆ giveEigenStrainVector()

void oofem::MPSMaterial::giveEigenStrainVector ( FloatArray & answer,
GaussPoint * gp,
TimeStep * tStep,
ValueModeType mode ) const
overrideprotectedvirtual

◆ giveEModulus()

◆ giveEquivalentTime()

double oofem::MPSMaterial::giveEquivalentTime ( GaussPoint * gp,
TimeStep * tStep ) const
overridevirtual

By default returns equivalent time in the middle of the time step.

Reimplemented from oofem::RheoChainMaterial.

Definition at line 643 of file mps.C.

References computeEquivalentTime().

◆ giveHumidity()

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

◆ giveHumidityNano()

double oofem::MPSMaterial::giveHumidityNano ( GaussPoint * gp,
TimeStep * tStep,
int option ) const
protected

Gives value of humidity in the nanopores at given GP and timestep for default value tau_nano = 0 hum_nano coincides with conventional pore humidity option = 0 ... beginning of the time step option = 1 ... end of the time step option = 2 ... average values option = 3 ... incremental values

Definition at line 1500 of file mps.C.

References giveHumidity(), oofem::MPSMaterialStatus::giveHumNano(), oofem::TimeStep::givePreviousStep(), oofem::Material::giveStatus(), oofem::TimeStep::giveTimeIncrement(), oofem::Material::isActivated(), oofem::TimeStep::isTheFirstStep(), OOFEM_ERROR, oofem::MPSMaterialStatus::setHumNanoTemp(), and tau_nano.

Referenced by computeFlowTermViscosity(), computePsiR(), and computePsiS().

◆ giveInitViscosity()

double oofem::MPSMaterial::giveInitViscosity ( TimeStep * tStep) const
protected

Returns initial value of the flow term viscosity.

Definition at line 1138 of file mps.C.

References oofem::TimeStep::giveTimeIncrement(), OOFEM_ERROR, q4, and t0.

Referenced by computeFlowTermViscosity(), giveEigenStrainVector(), and giveEModulus().

◆ giveInputRecordName()

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

Implements oofem::FEMComponent.

Definition at line 310 of file mps.h.

References _IFT_MPSMaterial_Name.

◆ giveIPValue()

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

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::Material.

Definition at line 1741 of file mps.C.

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

◆ giveRealStressVector()

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

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.

Definition at line 467 of file mps.C.

References computeEquivalentTime(), oofem::KelvinChainSolidMaterial::giveRealStressVector(), oofem::Material::giveStatus(), oofem::Material::isActivated(), and oofem::MPSMaterialStatus::setEquivalentTimeTemp().

◆ giveShrinkageStrainVector()

◆ giveTemperature()

double oofem::MPSMaterial::giveTemperature ( GaussPoint * gp,
TimeStep * tStep,
int option ) const
protected

◆ hasIncrementalShrinkageFormulation()

bool oofem::MPSMaterial::hasIncrementalShrinkageFormulation ( ) const
inlineoverrideprotectedvirtual

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 352 of file mps.h.

◆ initializeFrom()

void oofem::MPSMaterial::initializeFrom ( InputRecord & ir)
overridevirtual

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. Note that initializeFrom may be called mutiple times.

See also
IR_GIVE_FIELD
IR_GIVE_OPTIONAL_FIELD
Parameters
irInput record to initialize from.
priorityPriority of the input record. This is used to determine the order of initialization

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.

Definition at line 187 of file mps.C.

References _IFT_MPSMaterial_ac, _IFT_MPSMaterial_acr, _IFT_MPSMaterial_alpha_as, _IFT_MPSMaterial_alphae, _IFT_MPSMaterial_alphar, _IFT_MPSMaterial_alphas, _IFT_MPSMaterial_autoShrinkageTF, _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_factor_ksh_fh, _IFT_MPSMaterial_factor_ksh_h, _IFT_MPSMaterial_fc, _IFT_MPSMaterial_hydrationTimescaleTF, _IFT_MPSMaterial_k3, _IFT_MPSMaterial_khc, _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_tau_nano, _IFT_MPSMaterial_temperInCelsius, _IFT_MPSMaterial_timedependent_ksh, _IFT_MPSMaterial_wc, _IFT_MPSMaterial_wcr, _IFT_RheoChainMaterial_timefactor, alphaE, alphaR, alphaS, autoShrinkageTF, b4_alpha, b4_eps_au_infty, b4_r_t, b4_tau_au, CoupledAnalysis, eps_cas0, oofem::InputRecord::hasField(), hydrationTimescaleTF, oofem::KelvinChainSolidMaterial::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, k3, khc, kSh, ksh_fh, ksh_h, kTc, kTm, lambda0, MPS_full, MPS_humidity, MPS_temperature, muS, p, predictParametersFrom(), q1, q2, q3, q4, QEtoR, QRtoR, QStoR, oofem::RheoChainMaterial::relMatAge, roomTemperature, sh_a, sh_hC, sh_n, stiffnessFactor, t0, tau_nano, temperScaleDifference, and timeDependent_ksh.

◆ predictParametersFrom()

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

Definition at line 583 of file mps.C.

References computeCreepFunction(), lambda0, oofem::FEMComponent::number, OOFEM_LOG_DEBUG, q1, q2, q3, q4, and stiffnessFactor.

Referenced by initializeFrom().

◆ RankineMPSmat

friend class RankineMPSmat
friend

Definition at line 407 of file mps.h.

References RankineMPSmat.

Referenced by RankineMPSmat.

Member Data Documentation

◆ alphaE

double oofem::MPSMaterial::alphaE = 0.
protected

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

Definition at line 264 of file mps.h.

Referenced by computePsiE(), and initializeFrom().

◆ alphaR

double oofem::MPSMaterial::alphaR = 0.
protected

Definition at line 264 of file mps.h.

Referenced by computePsiR(), and initializeFrom().

◆ alphaS

double oofem::MPSMaterial::alphaS = 0.
protected

Definition at line 264 of file mps.h.

Referenced by computePsiS(), and initializeFrom().

◆ autoShrinkageTF

int oofem::MPSMaterial::autoShrinkageTF
protected

Possibility to prescribe the evolution of autogenous shrinkage strain by an auxiliary time function, the function is evaluated according to the current value of the equivalenet age, i.e. maturity.

Definition at line 296 of file mps.h.

Referenced by computeAutogenousShrinkageDefinedByTF(), giveShrinkageStrainVector(), and initializeFrom().

◆ b4_alpha

double oofem::MPSMaterial::b4_alpha = 0.
protected

Definition at line 276 of file mps.h.

Referenced by computeB4AutogenousShrinkageStrainVector(), and initializeFrom().

◆ b4_eps_au_infty

double oofem::MPSMaterial::b4_eps_au_infty = 0.
protected

parameters for autogenous shrinkage according to B4 model

Definition at line 276 of file mps.h.

Referenced by computeB4AutogenousShrinkageStrainVector(), giveShrinkageStrainVector(), and initializeFrom().

◆ b4_r_t

double oofem::MPSMaterial::b4_r_t = 0.
protected

Definition at line 276 of file mps.h.

Referenced by computeB4AutogenousShrinkageStrainVector(), and initializeFrom().

◆ b4_tau_au

double oofem::MPSMaterial::b4_tau_au = 0.
protected

Definition at line 276 of file mps.h.

Referenced by computeB4AutogenousShrinkageStrainVector(), and initializeFrom().

◆ CoupledAnalysis

◆ eps_cas0

double oofem::MPSMaterial::eps_cas0 = 0.
protected

parameter for autogenous shrinkage according to fib MC 2010

Definition at line 274 of file mps.h.

Referenced by computeFibAutogenousShrinkageStrainVector(), giveShrinkageStrainVector(), and initializeFrom().

◆ EspringVal

double oofem::MPSMaterial::EspringVal = 0.
mutableprotected

Definition at line 240 of file mps.h.

Referenced by computeCharCoefficients(), and giveEModulus().

◆ hydrationTimescaleTF

int oofem::MPSMaterial::hydrationTimescaleTF
protected

Further scaling of creep, shrinkage, tensile strength etc. with regards to this time function. Let us assume two hydrating cements with different kinetics. If the fast cement is a reference one, the simulation of the slow one is carried out on the reference cement and scaling by this time function, which is then ≤1. Results from isothermal calorimetry are typically used for defining this function.

Definition at line 291 of file mps.h.

Referenced by computePsiE(), and initializeFrom().

◆ k3

double oofem::MPSMaterial::k3 = 0.
protected

Definition at line 249 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ khc

double oofem::MPSMaterial::khc = 0.
protected

parameter reducing creep effects of hygral cycling (0 = complete reduction, 1 = no reduction, default value)

Definition at line 255 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ kSh

double oofem::MPSMaterial::kSh = 0.
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 247 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ ksh_fh

FloatArray oofem::MPSMaterial::ksh_fh
protected

Definition at line 272 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ ksh_h

FloatArray oofem::MPSMaterial::ksh_h
protected

nonlinear shrinkage function - user-defined piecewise-linear function

Definition at line 272 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ kTc

double oofem::MPSMaterial::kTc = 0.
protected

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

Definition at line 253 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ kTm

double oofem::MPSMaterial::kTm = 0.
protected

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

Definition at line 251 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ lambda0

double oofem::MPSMaterial::lambda0 = 0.
protected

◆ muS

double oofem::MPSMaterial::muS = 0.
protected

fluidity parameter used in viscosity evolution equation

Definition at line 249 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ p

double oofem::MPSMaterial::p = 0.
protected

exponent in the microprestress/viscosity governing equation

Definition at line 266 of file mps.h.

Referenced by computeFlowTermViscosity(), and initializeFrom().

◆ q1

double oofem::MPSMaterial::q1 = 0.
protected

compliances of the B3 model

Definition at line 233 of file mps.h.

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

◆ q2

double oofem::MPSMaterial::q2 = 0.
protected

◆ q3

double oofem::MPSMaterial::q3 = 0.
protected

◆ q4

double oofem::MPSMaterial::q4 = 0.
protected

◆ QEtoR

double oofem::MPSMaterial::QEtoR = 0.
protected

activation energies

Definition at line 262 of file mps.h.

Referenced by computePsiE(), and initializeFrom().

◆ QRtoR

double oofem::MPSMaterial::QRtoR = 0.
protected

Definition at line 262 of file mps.h.

Referenced by computePsiR(), and initializeFrom().

◆ QStoR

double oofem::MPSMaterial::QStoR = 0.
protected

Definition at line 262 of file mps.h.

Referenced by computePsiS(), and initializeFrom().

◆ roomTemperature

double oofem::MPSMaterial::roomTemperature = 0.
protected

parameter reducing creep effects of thermal cycling

reference room temperature for MPS algorithm [K]

Definition at line 260 of file mps.h.

Referenced by computeFlowTermViscosity(), computePsiE(), computePsiR(), computePsiS(), and initializeFrom().

◆ sh_a

double oofem::MPSMaterial::sh_a = 0.
protected

parameters for nonlinear shrinkage function

Definition at line 268 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ sh_hC

double oofem::MPSMaterial::sh_hC = 0.
protected

Definition at line 268 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ sh_n

double oofem::MPSMaterial::sh_n = 0.
protected

Definition at line 268 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().

◆ stiffnessFactor

double oofem::MPSMaterial::stiffnessFactor = 0.
protected

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

Definition at line 279 of file mps.h.

Referenced by initializeFrom(), and predictParametersFrom().

◆ t0

double oofem::MPSMaterial::t0 = 0.
protected

age when temperature or humidity starts to change

Definition at line 231 of file mps.h.

Referenced by giveInitViscosity(), and initializeFrom().

◆ tau_nano

double oofem::MPSMaterial::tau_nano = 0.
protected

characteristic time defining delay of relative humidity in the nanopores behind the capillary pores alternative approach might initiate shrinakge cracking before the stresses relax hum_nano + tau_nano * d_hum_nano / d_t = hum hum_nano is obtained using second-order exponential algorithm originally developed for creep of Kelvin unit

Definition at line 303 of file mps.h.

Referenced by computeFlowTermViscosity(), computePsiR(), computePsiS(), giveHumidityNano(), and initializeFrom().

◆ temperScaleDifference

double oofem::MPSMaterial::temperScaleDifference = 0.
protected

0 for Kelvin, 273.15 for Celsius

Definition at line 282 of file mps.h.

Referenced by giveTemperature(), and initializeFrom().

◆ timeDependent_ksh

bool oofem::MPSMaterial::timeDependent_ksh = false
protected

flag activating equivalent-time-dependence of shrinkage coefficient

Definition at line 270 of file mps.h.

Referenced by computePointShrinkageStrainVector(), and initializeFrom().


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

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