Class for creating an uniaxial isotropic linear elastic material for one-dimensional elements. More...

#include <Elastic1DLinear.hpp>

Inheritance diagram for Elastic1DLinear:

Collaboration diagram for Elastic1DLinear:

Public Member Functions
	Elastic1DLinear (const double E, const double nu=0, const double rho=0.0)
	Creates a Elastic1DLinear material to be specified at a Gauss-point in an Element. More...

	~Elastic1DLinear ()
	Destroys this Elastic1DLinear 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
	Access 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)
	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 Attributes
double	E
	Modulus of elasticity. More...

double	nu
	Poisson's ratio. More...

double	Rho
	Material density. More...

Eigen::VectorXd	Strain
	Strain vector. More...

Eigen::VectorXd	newStrain
	Commited Strain vector. More...

Eigen::MatrixXd	TangentStiffness
	Tangent stiffness matrix. More...

Detailed Description

Class for creating an uniaxial isotropic linear elastic material for one-dimensional elements.

See also: Material.hpp

Constructor & Destructor Documentation

◆ Elastic1DLinear()

Elastic1DLinear::Elastic1DLinear	(	const double	E,
		const double	nu = `0`,
		const double	rho = `0.0`
	)

Creates a Elastic1DLinear material to be specified at a Gauss-point in an Element.

Parameters

E	The material elasticity modulus.
nu	The material Poisson's ratio.
rho	The material density.

See also: Elastic1DLinear::E, Elastic1DLinear::nu, Elastic1DLinear::Rho.

◆ ~Elastic1DLinear()

Elastic1DLinear::~Elastic1DLinear ( )

Destroys this Elastic1DLinear material.

Member Function Documentation

◆ CommitState()

void Elastic1DLinear::CommitState ( )

virtual

Perform converged material state update.

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

Implements Material.

◆ CopyMaterial()

std::unique_ptr<Material> Elastic1DLinear::CopyMaterial ( )

virtual

Returns: A Material pointer to the Elastic1DLinear derived class.

See also: Material, Elastic1DLinear.

Implements Material.

◆ GetBulkModulus()

double Elastic1DLinear::GetBulkModulus ( ) const

virtual

Access bulk modulus.

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

Implements Material.

◆ GetDamping()

Eigen::MatrixXd Elastic1DLinear::GetDamping ( ) const

virtual

Returns the material viscous damping.

Returns: Vector with the material damping components.

Implements Material.

◆ GetDensity()

double Elastic1DLinear::GetDensity ( ) const

virtual

Access material density.

Returns: The material density value.

See also: Elastic1DLinear::Rho.

Implements Material.

◆ GetElasticityModulus()

double Elastic1DLinear::GetElasticityModulus ( ) const

virtual

Access modulus of elasticity.

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

See also: Elastic1DLinear::E.

Implements Material.

◆ GetEnergy()

double Elastic1DLinear::GetEnergy ( ) const

virtual

Access the material's energy at current strain.

Returns: Scalar with the material energy value.

Implements Material.

◆ GetInitialTangentStiffness()

Eigen::MatrixXd Elastic1DLinear::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 Elastic1DLinear::GetPoissonRatio ( ) const

virtual

Returns the Poisson's ratio.

Returns: The material poisson's ratio.

See also: Elastic1DLinear::nu.

Implements Material.

◆ GetShearModulus()

double Elastic1DLinear::GetShearModulus ( ) const

virtual

Access shear modulus.

Returns: The material shear's (G) modulus.

Implements Material.

◆ GetStrain()

Eigen::VectorXd Elastic1DLinear::GetStrain ( ) const

virtual

Returns the material strain.

Returns: Vector with the material strain components.

Note: The strain can be revisited in Elastic1DLinear.

See also: Elastic1DLinear::Strain.

Implements Material.

◆ GetStrainRate()

Eigen::VectorXd Elastic1DLinear::GetStrainRate ( ) const

virtual

Returns the material strain rate.

Returns: Vector with the material strain-rate components.

Note: The stress-rate can be revisited in Elastic1DLinear.

Implements Material.

◆ GetStress()

Eigen::VectorXd Elastic1DLinear::GetStress ( ) const

virtual

Returns the material stress.

Returns: Vector with the material stress components.

Note: The stress can be revisited in Elastic1DLinear.

See also: Elastic1DLinear::Stress.

Implements Material.

◆ GetTangentStiffness()

Eigen::MatrixXd Elastic1DLinear::GetTangentStiffness ( ) const

virtual

Returns the material stiffness.

Returns: Matrix with the material tangent stiffness matrix.

Note: The stiffness matrix can be revisited in Elastic1DLinear.

See also: Elastic1DLinear::TangentStiffness.

Implements Material.

◆ GetTotalStress()

Eigen::VectorXd Elastic1DLinear::GetTotalStress ( ) const

virtual

Computes the material total stress.

Returns: Vector with the material total stress components.

Note: The damping can be revisited in Elastic1DLinear.

See also: Elastic1DLinear::Stress.

Implements Material.

◆ InitialState()

void Elastic1DLinear::InitialState ( )

virtual

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

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

Implements Material.

◆ ReverseState()

void Elastic1DLinear::ReverseState ( )

virtual

Reverse the material states to previous converged state.

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

Implements Material.

◆ UpdateState()

void Elastic1DLinear::UpdateState	(	const Eigen::VectorXd	strain,
		const unsigned int	cond
	)

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

◆ E

double Elastic1DLinear::E

private

Modulus of elasticity.

◆ newStrain

Eigen::VectorXd Elastic1DLinear::newStrain

private

Commited Strain vector.

◆ nu

double Elastic1DLinear::nu

private

Poisson's ratio.

◆ Rho

double Elastic1DLinear::Rho

private

Material density.

◆ Strain

Eigen::VectorXd Elastic1DLinear::Strain

private

Strain vector.

◆ TangentStiffness

Eigen::MatrixXd Elastic1DLinear::TangentStiffness

private

Tangent stiffness matrix.

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Elastic1DLinear()

◆ ~Elastic1DLinear()

Member Function Documentation

◆ CommitState()

◆ CopyMaterial()

◆ GetBulkModulus()

◆ GetDamping()

◆ GetDensity()

◆ GetElasticityModulus()

◆ GetEnergy()

◆ GetInitialTangentStiffness()

◆ GetPoissonRatio()

◆ GetShearModulus()

◆ GetStrain()

◆ GetStrainRate()

◆ GetStress()

◆ GetTangentStiffness()

◆ GetTotalStress()

◆ InitialState()

◆ ReverseState()

◆ UpdateState()

Member Data Documentation

◆ E

◆ newStrain

◆ nu

◆ Rho

◆ Strain

◆ TangentStiffness