fea::GlobalStiffAssembler Class Reference

Assembles the global stiffness matrix. More...

#include <threed_beam_fea.h>

Public Member Functions
	GlobalStiffAssembler ()
	Default constructor. More...
void	operator() (SparseMat &Kg, const Job &job, const std::vector< Tie > &ties)
	Assembles the global stiffness matrix. More...
void	calcKelem (unsigned int i, const Job &job)
	Updates the elemental stiffness matrix for the ith element. More...
void	calcAelem (const Eigen::Vector3d &nx, const Eigen::Vector3d &nz)
	Updates the rotation and transposed rotation matrices. More...
LocalMatrix	getKelem ()
	Returns the currently stored elemental stiffness matrix. More...
LocalMatrix	getAelem ()
	Returns the currently stored rotation matrix. More...

Detailed Description

Assembles the global stiffness matrix.

Constructor & Destructor Documentation

fea::GlobalStiffAssembler::GlobalStiffAssembler ( )

inline

Default constructor.

Initializes all entries in member matrices to 0.0.

Member Function Documentation

void fea::GlobalStiffAssembler::calcAelem	(	const Eigen::Vector3d &	nx,
		const Eigen::Vector3d &	nz
	)

Updates the rotation and transposed rotation matrices.

The rotation matrices Aelem and AelemT are updated based on the 2 specified unit normal vectors along the local x and y directions.

Parameters

[in]	nx	Eigen::Matrix3d. Unit normal vector in global space parallel to the beam element's local x-direction.
[in]	ny	Eigen::Matrix3d. Unit normal vector in global space parallel to the beam element's local y-direction.

Here is the caller graph for this function:

void fea::GlobalStiffAssembler::calcKelem	(	unsigned int	i,
		const Job &	job
	)

Updates the elemental stiffness matrix for the ith element.

Parameters

[in]	i	unsigned int. Specifies the ith element for which the elemental stiffness matrix is calculated.
[in]	job	Job. Current fea::Job to analyze contains node, element, and property lists.

Here is the call graph for this function:

Here is the caller graph for this function:

LocalMatrix fea::GlobalStiffAssembler::getAelem ( )

inline

Returns the currently stored rotation matrix.

Returns

Rotation matrix fea::LocalMatrix.

LocalMatrix fea::GlobalStiffAssembler::getKelem ( )

inline

Returns the currently stored elemental stiffness matrix.

Returns

Elemental stiffness matrix fea::LocalMatrix.

void fea::GlobalStiffAssembler::operator()	(	SparseMat &	Kg,
		const Job &	job,
		const std::vector< Tie > &	ties
	)

Assembles the global stiffness matrix.

The input stiffness matrix is modified in place to contain the correct values for the given job. Assumes that the input stiffness matrix has the correct dimensions and all values are initially set to zero.

Parameters

	Kg	fea::GlobalStiffMatrix. Modified in place. After evaluation, Kg contains the correct values for the global stiffness matrix due to the input Job.
[in]	job	fea::Job. Current Job to analyze contains node, element, and property lists.
[in]	ties	std::vector<fea::Tie>. Vector of ties that apply to attach springs of specified stiffness to all nodal degrees of freedom between each set of nodes indicated.

Here is the call graph for this function:

---

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

• include/threed_beam_fea.h
• src/threed_beam_fea.cpp