Class for assembling the finite element matrices and vector. More...

#include <Assembler.hpp>

Public Member Functions
	Assembler ()
	Creates an Assembler object. More...

	~Assembler ()
	Destroys this Assembler object. More...

void	SetMassTolerance (double tol)
	Set the mass assembly allowed tolerance. More...

void	SetForceTolerance (double tol)
	Set the mass assembly allowed tolerance. More...

void	SetStiffnessTolerance (double tol)
	Set the stiffness assembly allowed tolerance. More...

void	SetLoadCombination (std::shared_ptr< LoadCombo > &combo)
	Sets the load combination to be used. More...

Eigen::SparseMatrix< double >	ComputeMassMatrix (std::shared_ptr< Mesh > &mesh)
	Assemble the mass matrix. More...

Eigen::SparseMatrix< double >	ComputeStiffnessMatrix (std::shared_ptr< Mesh > &mesh)
	Assemble the stiffness matrix. More...

Eigen::SparseMatrix< double >	ComputeDampingMatrix (std::shared_ptr< Mesh > &mesh)
	Assemble the stiffness matrix. More...

Eigen::SparseMatrix< double >	ComputePMLHistoryMatrix (std::shared_ptr< Mesh > &mesh)
	Assemble the integrated history matrix for Perfectly-Matched Layer (PML). More...

Eigen::VectorXd	ComputeProgressiveForceVector (std::shared_ptr< Mesh > &mesh)
	Assemble the external force vector accumulated from previous analyses. More...

Eigen::VectorXd	ComputeInternalForceVector (std::shared_ptr< Mesh > &mesh)
	Assemble the internal force vector. More...

Eigen::VectorXd	ComputeDynamicInternalForceVector (std::shared_ptr< Mesh > &mesh)
	Assemble the internal elastic, inertial, and viscous force vector. More...

Eigen::VectorXd	ComputeExternalForceVector (std::shared_ptr< Mesh > &mesh, unsigned int k)
	Assemble the external force vector. More...

Eigen::VectorXd	ComputeSupportMotionIncrement (std::shared_ptr< Mesh > &mesh, unsigned int k)
	Assemble the support motion displacement vector. More...

Eigen::VectorXd	ComputePMLHistoryVector (std::shared_ptr< Mesh > &mesh)
	Assemble the integrated history vector for Perfectly-Matched Layer (PML). More...

Protected Member Functions
void	AddNodeInertiaForces (std::shared_ptr< Mesh > &mesh, Eigen::VectorXd &DynamicForces)
	Adds the inertial forces contribution associated to the nodes. More...

void	AddElementDynamicForces (std::shared_ptr< Mesh > &mesh, Eigen::VectorXd &DynamicForces)
	Adds the elastic, inertial, and viscous forces associated to the elements. More...

void	AssembleNodalMass (std::shared_ptr< Mesh > &mesh, Eigen::SparseMatrix< double > &nodemass)
	Assemble Nodal Mass matrix. More...

void	AssembleElementMass (std::shared_ptr< Mesh > &mesh, Eigen::SparseMatrix< double > &elemmass)
	Assemble Element Mass matrix. More...

Private Attributes
double	MassTolerance
	Define mass tolerance. More...

double	StiffnessTolerance
	Define stiffness tolerance. More...

double	ForceTolerance
	Define stiffness tolerance. More...

std::shared_ptr< LoadCombo >	LoadCombination
	Load combination number. More...

Detailed Description

Class for assembling the finite element matrices and vector.

See also: QuasiStatic.hpp CentralDifference.hpp NewmarkBeta.hpp

Constructor & Destructor Documentation

◆ Assembler()

Assembler::Assembler ( )

Creates an Assembler object.

Note: More details can be found at Assembler.

◆ ~Assembler()

Assembler::~Assembler ( )

Destroys this Assembler object.

Member Function Documentation

◆ AddElementDynamicForces()

void Assembler::AddElementDynamicForces	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::VectorXd &	DynamicForces
	)

protected

Adds the elastic, inertial, and viscous forces associated to the elements.

Parameters

mesh	The finite element Mesh object.
DynamicForces	The vector with the Element dynamic internal forces.

See also: Element, Element::ComputeInternalDynamicForces().

◆ AddNodeInertiaForces()

void Assembler::AddNodeInertiaForces	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::VectorXd &	DynamicForces
	)

protected

Adds the inertial forces contribution associated to the nodes.

Parameters

mesh	The finite element Mesh object.
DynamicForces	The vector with the node inertial forces.

See also: Node, Node::GetInertialForces().

◆ AssembleElementMass()

void Assembler::AssembleElementMass	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::SparseMatrix< double > &	elemmass
	)

protected

Assemble Element Mass matrix.

Parameters

mesh	The finite element Mesh object.
elemmass	A matrix that stores the Element mass contribution.

See also: Element, Element::ComputeMassMatrix().

◆ AssembleNodalMass()

void Assembler::AssembleNodalMass	(	std::shared_ptr< Mesh > &	mesh,
		Eigen::SparseMatrix< double > &	nodemass
	)

protected

Assemble Nodal Mass matrix.

Parameters

mesh	The finite element Mesh object.
nodemass	A matrix that stores the Node mass contribution.

See also: Node, Node::GetMass().

◆ ComputeDampingMatrix()

Eigen::SparseMatrix<double> Assembler::ComputeDampingMatrix ( std::shared_ptr< Mesh > & mesh )

Assemble the stiffness matrix.

Parameters

mesh	The finite element Mesh object.

Returns: A matrix with the model damping.

Note: More details can be found at Assembler.

See also: Element::ComputeDampingMatrix(), Integrator::ComputeEffectiveStiffness().

◆ ComputeDynamicInternalForceVector()

Eigen::VectorXd Assembler::ComputeDynamicInternalForceVector ( std::shared_ptr< Mesh > & mesh )

Assemble the internal elastic, inertial, and viscous force vector.

Parameters

mesh	The finite element Mesh object. return A vector with the model total (inertial, viscous, elastic) internal force.

See also: Element::ComputeInternalDynamicForces().

◆ ComputeExternalForceVector()

Eigen::VectorXd Assembler::ComputeExternalForceVector	(	std::shared_ptr< Mesh > &	mesh,
		unsigned int	k
	)

Assemble the external force vector.

Parameters

mesh	The finite element Mesh object.
k	The time step when the force is evaluated.

Returns: A vector with the model total external force.

Note: More details can be found at Assembler.

See also: Element::ComputeSurfaceForces(), Element::ComputeBodyForces(), Integrator::ComputeEffectiveForce().

◆ ComputeInternalForceVector()

Eigen::VectorXd Assembler::ComputeInternalForceVector ( std::shared_ptr< Mesh > & mesh )

Assemble the internal force vector.

Parameters

mesh	The finite element Mesh object. return A vector with the model total internal force.

See also: Element::ComputeInternalForces(), Integrator::ComputeEffectiveForce().

◆ ComputeMassMatrix()

Eigen::SparseMatrix<double> Assembler::ComputeMassMatrix ( std::shared_ptr< Mesh > & mesh )

Assemble the mass matrix.

Parameters

mesh	The finite element Mesh object. return A matrix with the model mass.

Note: More details can be found at Assembler.

See also: Element::ComputeMassMatrix(), Integrator::ComputeEffectiveStiffness().

◆ ComputePMLHistoryMatrix()

Eigen::SparseMatrix<double> Assembler::ComputePMLHistoryMatrix ( std::shared_ptr< Mesh > & mesh )

Assemble the integrated history matrix for Perfectly-Matched Layer (PML).

Parameters

mesh	The finite element Mesh object.

Returns: A vector with the PML history values.

Note: More details can be found at Assembler.

See also: Element::ComputeDampingMatrix(), Integrator::ComputeEffectiveStiffness().

◆ ComputePMLHistoryVector()

Eigen::VectorXd Assembler::ComputePMLHistoryVector ( std::shared_ptr< Mesh > & mesh )

Assemble the integrated history vector for Perfectly-Matched Layer (PML).

Parameters

mesh	The finite element Mesh object.

Returns: A vector with the PML history values.

See also: Integrator::ComputeEffectiveForce(), Integrator::ComputeEffectiveStiffness()

◆ ComputeProgressiveForceVector()

Eigen::VectorXd Assembler::ComputeProgressiveForceVector ( std::shared_ptr< Mesh > & mesh )

Assemble the external force vector accumulated from previous analyses.

Parameters

mesh	The finite element Mesh object.

Returns: A vector with the total accumulated external force.

Note: More details can be found at Assembler.

See also: Integrator::ComputeEffectiveForce().

◆ ComputeStiffnessMatrix()

Eigen::SparseMatrix<double> Assembler::ComputeStiffnessMatrix ( std::shared_ptr< Mesh > & mesh )

Assemble the stiffness matrix.

Parameters

mesh	The finite element Mesh object.

Returns: A matrix with the model stiffness.

Note: More details can be found at Assembler.

See also: Element::ComputeStiffnessMatrix(), Integrator::ComputeEffectiveStiffness().

◆ ComputeSupportMotionIncrement()

Eigen::VectorXd Assembler::ComputeSupportMotionIncrement	(	std::shared_ptr< Mesh > &	mesh,
		unsigned int	k
	)

Assemble the support motion displacement vector.

Parameters

mesh	The finite element Mesh object.
k	The time step when the support motion is evaluated.

Returns: A vector with the model support motion displacements.

See also: Integrator::ComputeEffectiveForce(), Integrator::ComputeEffectiveStiffness()

◆ SetForceTolerance()

void Assembler::SetForceTolerance ( double tol )

Set the mass assembly allowed tolerance.

Parameters

tol	Threshold for which a force value will be neglected.

◆ SetLoadCombination()

void Assembler::SetLoadCombination ( std::shared_ptr< LoadCombo > & combo )

Sets the load combination to be used.

Parameters

combo Pointer to the load combination to be simulated.

◆ SetMassTolerance()

void Assembler::SetMassTolerance ( double tol )

Set the mass assembly allowed tolerance.

Parameters

tol	Threshold for which a mass value will be neglected.

◆ SetStiffnessTolerance()

void Assembler::SetStiffnessTolerance ( double tol )

Set the stiffness assembly allowed tolerance.

Parameters

tol	Threshold for which a stiffness value will be neglected.

Member Data Documentation

◆ ForceTolerance

double Assembler::ForceTolerance

private

Define stiffness tolerance.

◆ LoadCombination

std::shared_ptr<LoadCombo> Assembler::LoadCombination

private

Load combination number.

◆ MassTolerance

double Assembler::MassTolerance

private

Define mass tolerance.

◆ StiffnessTolerance

double Assembler::StiffnessTolerance

private

Define stiffness tolerance.

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Assembler()

◆ ~Assembler()

Member Function Documentation

◆ AddElementDynamicForces()

◆ AddNodeInertiaForces()

◆ AssembleElementMass()

◆ AssembleNodalMass()

◆ ComputeDampingMatrix()

◆ ComputeDynamicInternalForceVector()

◆ ComputeExternalForceVector()

◆ ComputeInternalForceVector()

◆ ComputeMassMatrix()

◆ ComputePMLHistoryMatrix()

◆ ComputePMLHistoryVector()

◆ ComputeProgressiveForceVector()

◆ ComputeStiffnessMatrix()

◆ ComputeSupportMotionIncrement()

◆ SetForceTolerance()

◆ SetLoadCombination()

◆ SetMassTolerance()

◆ SetStiffnessTolerance()

Member Data Documentation

◆ ForceTolerance

◆ LoadCombination

◆ MassTolerance

◆ StiffnessTolerance