Class for creating an uniaxial concrete material compatible with fiber section. More...

#include <Concrete1DFiber.hpp>

Inheritance diagram for Concrete1DFiber:

Collaboration diagram for Concrete1DFiber:

Public Member Functions
	Concrete1DFiber (double fc, double ecc, double fcu, double ecu, double ratio, double ft=0.0, double Et=0.0, double nu=0.25, double rho=0.0)
	Creates a Concrete1DFiber material to be specified at a Gauss-point in an Element. More...

	~Concrete1DFiber ()
	Destroys this Concrete1DFiber material. More...

std::unique_ptr< Material >	CopyMaterial ()

double	GetDensity () const
	Access material density. More...

double	GetPoissonRatio () const
	Returns the Poisson's ratio. More...

double	GetBulkModulus () const
	Access bulk modulus. More...

double	GetShearModulus () const
	Returns linear shear modulus. More...

double	GetElasticityModulus () const
	Access modulus of elasticity. More...

double	GetEnergy () const
	Access the material's energy at current strain. More...

Eigen::MatrixXd	GetDamping () const
	Returns the material viscous damping. More...

Eigen::VectorXd	GetStrain () const
	Returns the material strain. More...

Eigen::VectorXd	GetStress () const
	Returns the material stress. More...

Eigen::VectorXd	GetStrainRate () const
	Returns the material strain rate. More...

Eigen::VectorXd	GetTotalStress () const
	Computes the material total stress. More...

Eigen::MatrixXd	GetTangentStiffness () const
	Returns the material stiffness. More...

Eigen::MatrixXd	GetInitialTangentStiffness () const
	Returns the initial material stiffness. More...

void	CommitState ()
	Perform converged material state update. More...

void	ReverseState ()
	Reverse the material states to previous converged state. More...

void	InitialState ()
	Brings the material states to its initial state in the element. More...

void	UpdateState (const Eigen::VectorXd strain, const unsigned int cond=0)
	Update the material state for this iteration. More...

Public Member Functions inherited from Material
	Material (std::string name, bool model)
	Creates a Material to be specified at a Gauss-point in an Element. More...

virtual	~Material ()=0
	Destroys this Material object. More...

std::string	GetName ()
	Gets material information. More...

bool	IsViscous ()
	Gets material stress model. More...

Private Member Functions
void	Tensile_Envelope (double eccn, double &fccn, double &Etn)

void	Compressive_Envelope (double eccn, double &fccn, double &Ecn)

Private Attributes
double	nu

double	Et

double	fc

double	ft

double	fcu

double	ecu

double	ecc

double	Rho

double	lambda

double	newStrain

double	newStress

double	newTangentStiffness

double	newMinStrain

double	newMaxStrain

double	oldStrain

double	oldStress

double	oldTangentStiffness

double	oldMinStrain

double	oldMaxStrain

Detailed Description

Class for creating an uniaxial concrete material compatible with fiber section.

See also: Material.hpp

Constructor & Destructor Documentation

◆ Concrete1DFiber()

Concrete1DFiber::Concrete1DFiber	(	double	fc,
		double	ecc,
		double	fcu,
		double	ecu,
		double	ratio,
		double	ft = `0.0`,
		double	Et = `0.0`,
		double	nu = `0.25`,
		double	rho = `0.0`
	)

Creates a Concrete1DFiber material to be specified at a Gauss-point in an Element.

Parameters

fc	The concrete compressive strength at 28 days.
ecc	The concrete strain at maximum strength.
fcu	The concrete crushing strength.
ecu	The concrete strain at crushing strength.
ratio	Ratio between unloading slope at and initial slope.
ft	The concrete tensile strength.
Et	The tension softening stiffness (absolute value).
nu	Represents the Poisson's ratio.
Rho	Represents the material density.

See also: Concrete1DFiber::E, Concrete1DFiber::nu, Concrete1DFiber::Rho.

◆ ~Concrete1DFiber()

Concrete1DFiber::~Concrete1DFiber ( )

Destroys this Concrete1DFiber material.

Member Function Documentation

◆ CommitState()

void Concrete1DFiber::CommitState ( )

virtual

Perform converged material state update.

Note: This function sets the trail stress and strain as converged.

Implements Material.

◆ Compressive_Envelope()

void Concrete1DFiber::Compressive_Envelope	(	double	eccn,
		double &	fccn,
		double &	Ecn
	)

private

◆ CopyMaterial()

std::unique_ptr<Material> Concrete1DFiber::CopyMaterial ( )

virtual

Returns: A Material pointer to the Concrete1DFiber derived class.

See also: Material, Concrete1DFiber.

Implements Material.

◆ GetBulkModulus()

double Concrete1DFiber::GetBulkModulus ( ) const

virtual

Access bulk modulus.

Returns: The material bulk's (K) modulus.

Implements Material.

◆ GetDamping()

Eigen::MatrixXd Concrete1DFiber::GetDamping ( ) const

virtual

Returns the material viscous damping.

Returns: Vector with the material damping components.

Implements Material.

◆ GetDensity()

double Concrete1DFiber::GetDensity ( ) const

virtual

Access material density.

Returns: The material density value.

See also: Concrete1DFiber::Rho.

Implements Material.

◆ GetElasticityModulus()

double Concrete1DFiber::GetElasticityModulus ( ) const

virtual

Access modulus of elasticity.

Returns: The material Elasticity's (E) modulus.

See also: Concrete1DFiber::fc.

Implements Material.

◆ GetEnergy()

double Concrete1DFiber::GetEnergy ( ) const

virtual

Access the material's energy at current strain.

Returns: Scalar with the material energy value.

Implements Material.

◆ GetInitialTangentStiffness()

Eigen::MatrixXd Concrete1DFiber::GetInitialTangentStiffness ( ) const

virtual

Returns the initial material stiffness.

Returns: Matrix with the initial material tangent stiffness matrix.

Note: The initial tangent stiffness matrix is computed when the strain vector is zero.

Implements Material.

◆ GetPoissonRatio()

double Concrete1DFiber::GetPoissonRatio ( ) const

virtual

Returns the Poisson's ratio.

Returns: The material poisson's ratio.

See also: Concrete1DFiber::nu.

Implements Material.

◆ GetShearModulus()

double Concrete1DFiber::GetShearModulus ( ) const

virtual

Returns linear shear modulus.

Returns: The material density value.

Implements Material.

◆ GetStrain()

Eigen::VectorXd Concrete1DFiber::GetStrain ( ) const

virtual

Returns the material strain.

Returns: Vector with the material strain components.

Note: The strain can be revisited in Concrete1DFiber.

See also: Concrete1DFiber::Strain.

Implements Material.

◆ GetStrainRate()

Eigen::VectorXd Concrete1DFiber::GetStrainRate ( ) const

virtual

Returns the material strain rate.

Returns: Vector with the material strain-rate components.

Note: The stress-rate can be revisited in Concrete1DFiber.

Implements Material.

◆ GetStress()

Eigen::VectorXd Concrete1DFiber::GetStress ( ) const

virtual

Returns the material stress.

Returns: Vector with the material stress components.

Note: The stress can be revisited in Concrete1DFiber.

See also: Concrete1DFiber::Stress.

Implements Material.

◆ GetTangentStiffness()

Eigen::MatrixXd Concrete1DFiber::GetTangentStiffness ( ) const

virtual

Returns the material stiffness.

Returns: Matrix with the material tangent stiffness matrix.

Note: The stiffness matrix can be revisited in Concrete1DFiber.

See also: Concrete1DFiber::TangentStiffness.

Implements Material.

◆ GetTotalStress()

Eigen::VectorXd Concrete1DFiber::GetTotalStress ( ) const

virtual

Computes the material total stress.

Returns: Vector with the material total stress components.

Note: The damping can be revisited in Concrete1DFiber.

See also: Concrete1DFiber::Stress.

Implements Material.

◆ InitialState()

void Concrete1DFiber::InitialState ( )

virtual

Brings the material states to its initial state in the element.

Note: This function returns the material states to the beginning.

Implements Material.

◆ ReverseState()

void Concrete1DFiber::ReverseState ( )

virtual

Reverse the material states to previous converged state.

Note: This function returns the material states to previous converged states.

Implements Material.

◆ Tensile_Envelope()

void Concrete1DFiber::Tensile_Envelope	(	double	eccn,
		double &	fccn,
		double &	Etn
	)

private

◆ UpdateState()

void Concrete1DFiber::UpdateState	(	const Eigen::VectorXd	strain,
		const unsigned int	cond = `0`
	)

virtual

Update the material state for this iteration.

Parameters

strain	Vector with the strain components at this Gauss-point.
cond	If the the elastic/plastic material components will be updated.

Note: This function computes the strain and tanget stiffness matrix once the trial strain converged.

Implements Material.

Member Data Documentation

◆ ecc

double Concrete1DFiber::ecc

private

◆ ecu

double Concrete1DFiber::ecu

private

◆ Et

double Concrete1DFiber::Et

private

◆ fc

double Concrete1DFiber::fc

private

◆ fcu

double Concrete1DFiber::fcu

private

◆ ft

double Concrete1DFiber::ft

private

◆ lambda

double Concrete1DFiber::lambda

private

◆ newMaxStrain

double Concrete1DFiber::newMaxStrain

private

◆ newMinStrain

double Concrete1DFiber::newMinStrain

private

◆ newStrain

double Concrete1DFiber::newStrain

private

◆ newStress

double Concrete1DFiber::newStress

private

◆ newTangentStiffness

double Concrete1DFiber::newTangentStiffness

private

◆ nu

double Concrete1DFiber::nu

private

◆ oldMaxStrain

double Concrete1DFiber::oldMaxStrain

private

◆ oldMinStrain

double Concrete1DFiber::oldMinStrain

private

◆ oldStrain

double Concrete1DFiber::oldStrain

private

◆ oldStress

double Concrete1DFiber::oldStress

private

◆ oldTangentStiffness

double Concrete1DFiber::oldTangentStiffness

private

◆ Rho

double Concrete1DFiber::Rho

private

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Concrete1DFiber()

◆ ~Concrete1DFiber()

Member Function Documentation

◆ CommitState()

◆ Compressive_Envelope()

◆ CopyMaterial()

◆ GetBulkModulus()

◆ GetDamping()

◆ GetDensity()

◆ GetElasticityModulus()

◆ GetEnergy()

◆ GetInitialTangentStiffness()

◆ GetPoissonRatio()

◆ GetShearModulus()

◆ GetStrain()

◆ GetStrainRate()

◆ GetStress()

◆ GetTangentStiffness()

◆ GetTotalStress()

◆ InitialState()

◆ ReverseState()

◆ Tensile_Envelope()

◆ UpdateState()

Member Data Documentation

◆ ecc

◆ ecu

◆ Et

◆ fc

◆ fcu

◆ ft

◆ lambda

◆ newMaxStrain

◆ newMinStrain

◆ newStrain

◆ newStress

◆ newTangentStiffness

◆ nu

◆ oldMaxStrain

◆ oldMinStrain

◆ oldStrain

◆ oldStress

◆ oldTangentStiffness

◆ Rho