Implementation of a linear elastic material according to the B4 model by Bazant et al. (2015) generalized for 3D stress states. More...

#include <B4.h>

Inheritance diagram for Marmot::Materials::B4:

[legend]

Classes
class	B4StateVarManager

Public Member Functions
	B4 (const double *materialProperties, int nMaterialProperties, int materialLabel)

void	computeStress (double stress, double dStressDDStrain, const double dStrain, const double timeOld, const double dT, double &pNewDT)

int	getNumberOfRequiredStateVars ()

void	assignStateVars (double *stateVars_, int nStateVars)

StateView	getStateView (const std::string &stateName)

Public Member Functions inherited from MarmotMaterialHypoElastic
void	setCharacteristicElementLength (double length)

virtual void	computeStress (double stress, double dStressDDStrain, const double FOld, const double FNew, const double *timeOld, const double dT, double &pNewDT) override

virtual void	computePlaneStress (double stress2D, double dStress_dStrain2D, const double dStrain2D, const double timeOld, const double dT, double &pNewDT)

virtual void	computeUniaxialStress (double stress1D, double dStress_dStrain1D, const double dStrain, const double timeOld, const double dT, double &pNewDT)

virtual void	computePlaneStress (double stress2D, double dStress_dF2DNew, const double FOld2D, const double FNew2D, const double *timeOld, const double dT, double &pNewDT)

virtual void	computeUniaxialStress (double stress1D, double dStress1D_dF1DNew, const double F1DOld, const double F1DNew, const double *timeOld, const double dT, double &pNewDT)

Public Member Functions inherited from MarmotMaterialMechanical
virtual void	computePlaneStress (double stress2D, double dStress_dF2DNew, const double FOld2D, const double FNew2D, const double *timeOld, const double dT, double &pNewDT)

virtual void	computeUniaxialStress (double stress1D, double dStress1D_dF1DNew, const double F1DOld, const double F1DNew, const double *timeOld, const double dT, double &pNewDT)

	MarmotMaterial (const double *materialProperties, int nMaterialProperties, int materialNumber)

Public Member Functions inherited from MarmotMaterial
	MarmotMaterial (const double *materialProperties, int nMaterialProperties, int materialNumber)

virtual	~MarmotMaterial ()

double *	getAssignedStateVars ()

int	getNumberOfAssignedStateVars ()

virtual void	initializeYourself ()

virtual double	getDensity ()

Private Member Functions
template<typename T_ >
T_	phi (T_ xi, double b, double xiZero)
	drying creep compliance function More...

Private Attributes
const double &	nu
	Poisson's ratio. More...

const double &	q1
	asymptotic elastic compliance parameter More...

const double &	q2
	viscoelastic compliance parameter More...

const double &	q3
	viscoelastic compliance parameter More...

const double &	q4
	flow compliance parameter More...

const double &	n
	log-power law exponent More...

const double &	m
	solidified volume exponent More...

const size_t	nKelvinBasic
	number of Kelvin units to approximate the viscoelastic compliance More...

const double &	minTauBasic
	minimal retardation time used in the viscoelastic Kelvin chain More...

const double &	ultimateAutogenousShrinkageStrain
	ultimate autogenous shrinkage strain More...

const double &	autogenousShrinkageHalfTime
	autogenous shrinkage half time More...

const double &	alpha
	autogenous shrinkage material parameter More...

const double &	rt
	autogenous shrinkage material parameter More...

const double &	ultimateDryingShrinkageStrain
	ultimate drying shrinkage strain More...

const double &	dryingShrinkageHalfTime
	drying shrinkage half time More...

const double &	dryingStart
	drying start time More...

const double &	hEnv
	relative ambient humidity More...

const double &	q5
	drying creep compliance parameter More...

const size_t	nKelvinDrying
	number of Kelvin units to approximate the drying creep compliance More...

const double &	minTauDrying
	minimal retardation time used in the drying creep Kelvin chain More...

const double &	castTime
	time to start hydration More...

const double &	timeToDays
	ratio of simulation time to days More...

std::unique_ptr< B4StateVarManager >	stateVarManager

SolidificationTheory::Parameters	solidificationParameters

SolidificationTheory::KelvinChainProperties	solidificationKelvinProperties

KelvinChain::Properties	basicCreepElasticModuli

KelvinChain::Properties	basicCreepRetardationTimes

Static Private Attributes
static constexpr int	dryingCreepComplianceApproximationOrder = 5

static constexpr int	basicCreepComplianceApproximationOrder = 2

Additional Inherited Members
Public Attributes inherited from MarmotMaterialHypoElastic
double	characteristicElementLength
	Characteristic element length. More...

Public Attributes inherited from MarmotMaterial
const int	materialNumber

Protected Attributes inherited from MarmotMaterial
const double *	materialProperties

const int	nMaterialProperties

double *	stateVars

int	nStateVars

Detailed Description

Implementation of a linear elastic material according to the B4 model by Bazant et al. (2015) generalized for 3D stress states.

For further information see B4 Model.

Constructor & Destructor Documentation

◆ B4()

Marmot::Materials::B4::B4	(	const double *	materialProperties,
		int	nMaterialProperties,
		int	materialLabel
	)

Member Function Documentation

◆ computeStress()

void Marmot::Materials::B4::computeStress	(	double *	stress,
		double *	dStressDDStrain,
		const double *	dStrain,
		const double *	timeOld,
		const double	dT,
		double &	pNewDT
	)

virtual

For a given linearized strain increment \(\Delta\boldsymbol{\varepsilon}\) at the old and the current time, compute the Cauchy stress and the algorithmic tangent \(\frac{\partial\boldsymbol{\sigma}^{(n+1)}}{\partial\boldsymbol{\varepsilon}^{(n+1)}}\).

Parameters

[in,out]	stress	Cauchy stress
[in,out]	dStressDDstrain	Algorithmic tangent representing the derivative of the Cauchy stress tensor with respect to the linearized strain
[in]	dStrain	linearized strain increment
[in]	timeOld	Old (pseudo-)time
[in]	dt	(Pseudo-)time increment from the old (pseudo-)time to the current (pseudo-)time
[in,out]	pNewDT	Suggestion for a new time increment

Implements MarmotMaterialHypoElastic.

◆ getNumberOfRequiredStateVars()

int Marmot::Materials::B4::getNumberOfRequiredStateVars ( )

virtual

Implements MarmotMaterial.

◆ assignStateVars()

void Marmot::Materials::B4::assignStateVars	(	double *	stateVars_,
		int	nStateVars
	)

virtual

Reimplemented from MarmotMaterial.

◆ getStateView()

StateView Marmot::Materials::B4::getStateView ( const std::string & stateName )

virtual

Implements MarmotMaterial.

◆ phi()

template<typename T_ >

T_ Marmot::Materials::B4::phi	(	T_	xi,
		double	b,
		double	xiZero
	)

inlineprivate

drying creep compliance function

Member Data Documentation

◆ nu

const double& Marmot::Materials::B4::nu

private

Poisson's ratio.

nu represents Poisson's ratio for isotropic linear elasticity. It is a reference variable to materialProperties[0].

◆ q1

const double& Marmot::Materials::B4::q1

private

asymptotic elastic compliance parameter

q1 represents the first compliance parameter for Solidification Theory. It is a reference variable to materialProperties[1].

◆ q2

const double& Marmot::Materials::B4::q2

private

viscoelastic compliance parameter

q2 represents the second compliance parameter for Solidification Theory. It is a reference variable to materialProperties[2].

◆ q3

const double& Marmot::Materials::B4::q3

private

viscoelastic compliance parameter

q3 represents the third compliance parameter for Solidification Theory. It is a reference variable to materialProperties[3].

◆ q4

const double& Marmot::Materials::B4::q4

private

flow compliance parameter

q4 represents the fourth compliance parameter for Solidification Theory. It is a reference variable to materialProperties[4].

◆ n

const double& Marmot::Materials::B4::n

private

log-power law exponent

n represents the exponent of the log-power law used in the compliance function of the hardened constituent. It is a reference variable to materialProperties[5].

◆ m

const double& Marmot::Materials::B4::m

private

solidified volume exponent

m represents the exponent in the function describing the solidification of the material. It is a reference variable to materialProperties[6].

◆ nKelvinBasic

const size_t Marmot::Materials::B4::nKelvinBasic

private

number of Kelvin units to approximate the viscoelastic compliance

nKelvinBasic the number of Kelvin units used to approximate the viscoelastic compliance. It is a reference variable to materialProperties[7].

◆ minTauBasic

const double& Marmot::Materials::B4::minTauBasic

private

minimal retardation time used in the viscoelastic Kelvin chain

minTauBasic represents the minimal retardation time in days used in the Kelvin chain to approximate the viscoelastic compliance. It is a reference variable to materialProperties[8].

◆ ultimateAutogenousShrinkageStrain

const double& Marmot::Materials::B4::ultimateAutogenousShrinkageStrain

private

ultimate autogenous shrinkage strain

ultimateAutogenousShrinkageStrain represents the ultimate autogenous shrinkage strain. It is a reference variable to materialProperties[9].

◆ autogenousShrinkageHalfTime

const double& Marmot::Materials::B4::autogenousShrinkageHalfTime

private

autogenous shrinkage half time

autogenousShrinkageHalfTime represents the autogenous shrinkage half time. It is a reference variable to materialProperties[10].

◆ alpha

const double& Marmot::Materials::B4::alpha

private

autogenous shrinkage material parameter

alpha represents a cement type and concrete composition dependent material parameter for autogenous shrinkage. It is a reference variable to materialProperties[11].

◆ rt

const double& Marmot::Materials::B4::rt

private

autogenous shrinkage material parameter

rt represents a cement type dependent material parameter for autogenous shrinkage. It is a reference variable to materialProperties[12].

◆ ultimateDryingShrinkageStrain

const double& Marmot::Materials::B4::ultimateDryingShrinkageStrain

private

ultimate drying shrinkage strain

ultimateDryingShrinkageStrain represents the ultimate drying shrinkage strain at zero relative ambient humidity. It is a reference variable to materialProperties[13].

◆ dryingShrinkageHalfTime

const double& Marmot::Materials::B4::dryingShrinkageHalfTime

private

drying shrinkage half time

dryingShrinkageHalfTime represents the drying shrinkage half time. It is a reference variable to materialProperties[14].

◆ dryingStart

const double& Marmot::Materials::B4::dryingStart

private

drying start time

dryingStart represents start of drying in days. It is a reference variable to materialProperties[15].

◆ hEnv

const double& Marmot::Materials::B4::hEnv

private

relative ambient humidity

hEnv represents relative ambient humidity. It is a reference variable to materialProperties[16].

◆ q5

const double& Marmot::Materials::B4::q5

private

drying creep compliance parameter

q5 represents drying creep compliance parameter. It is a reference variable to materialProperties[17].

◆ nKelvinDrying

const size_t Marmot::Materials::B4::nKelvinDrying

private

number of Kelvin units to approximate the drying creep compliance

q5 represents the number of Kelvin units to approximate the drying creep compliance function. It is a reference variable to materialProperties[18].

◆ minTauDrying

const double& Marmot::Materials::B4::minTauDrying

private

minimal retardation time used in the drying creep Kelvin chain

minTauDrying represents the minimal retardation time used in the Kelvin chain to approximate the drying creep compliance function. It is a reference variable to materialProperties[19].

◆ castTime

const double& Marmot::Materials::B4::castTime

private

time to start hydration

castTime represents the time at which hydration starts with respect to simulation time. It is a reference variable to materialProperties[20].

◆ timeToDays

const double& Marmot::Materials::B4::timeToDays

private

ratio of simulation time to days

timeToDays represents the ratio of simulation time to days. It is a reference variable to materialProperties[21].

◆ stateVarManager

std::unique_ptr< B4StateVarManager > Marmot::Materials::B4::stateVarManager

private

◆ solidificationParameters

SolidificationTheory::Parameters Marmot::Materials::B4::solidificationParameters

private

◆ solidificationKelvinProperties

SolidificationTheory::KelvinChainProperties Marmot::Materials::B4::solidificationKelvinProperties

private

◆ basicCreepElasticModuli

KelvinChain::Properties Marmot::Materials::B4::basicCreepElasticModuli

private

◆ basicCreepRetardationTimes

KelvinChain::Properties Marmot::Materials::B4::basicCreepRetardationTimes

private

◆ dryingCreepComplianceApproximationOrder

constexpr int Marmot::Materials::B4::dryingCreepComplianceApproximationOrder = 5

staticconstexprprivate

◆ basicCreepComplianceApproximationOrder

constexpr int Marmot::Materials::B4::basicCreepComplianceApproximationOrder = 2

staticconstexprprivate

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

modules/materials/B4/include/Marmot/B4.h
modules/materials/B4/src/B4.cpp

Classes

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ B4()

Member Function Documentation

◆ computeStress()

◆ getNumberOfRequiredStateVars()

◆ assignStateVars()

◆ getStateView()

◆ phi()

Member Data Documentation

◆ nu

◆ q1

◆ q2

◆ q3

◆ q4

◆ n

◆ m

◆ nKelvinBasic

◆ minTauBasic

◆ ultimateAutogenousShrinkageStrain

◆ autogenousShrinkageHalfTime

◆ alpha

◆ rt

◆ ultimateDryingShrinkageStrain

◆ dryingShrinkageHalfTime

◆ dryingStart

◆ hEnv

◆ q5

◆ nKelvinDrying

◆ minTauDrying

◆ castTime

◆ timeToDays

◆ stateVarManager

◆ solidificationParameters

◆ solidificationKelvinProperties

◆ basicCreepElasticModuli

◆ basicCreepRetardationTimes

◆ dryingCreepComplianceApproximationOrder

◆ basicCreepComplianceApproximationOrder