SLFFEA 1.4 review
DownloadSLFFEA stands for San Le's Free Finite Element Analysis


SLFFEA stands for San Le's Free Finite Element Analysis. SLFFEA is a package of scientific software and graphical user interfaces for use in finite element analysis. It is written in ANSI C by San Le and distributed under the terms of the GNU license.
SLFFEA includes:
9 of the basic finite element types:
3D 2 node beam
3D 8 node brick
2D 4 node plate
2D 4 node quad (plane stress and plane strain)
3D 4 node doubly curved shell (individual element defined by 4 or 8 nodes)
3D 4 node tetrahedron
2D 3 node triangle
3D 2 node truss
3D 6 node wedge
nonlinear large deformation element:
3D 8 node brick  Updated Lagrange formulation with Jaumann Stress Rate
And 1 thermal element:
3D 8 node brick  It can handle thermal loads as well as orthotropy.
9 Graphical User Interfaces for each element type.
Example of brick GUI
Example of beam GUI
SLFFEA is dedicated to Richard Stallman , Granddaddy of the Free Software Movement, Linus Torvalds, its prodigal son, and everyone on comp.os.linux.setup .
Requirements:
Mesa
Perl
What's New in This Release:
The quad and triangle elements are expanded.
The 4 node quadrilateral element can now handle 3D membrane problems in addition to the plane strain/stress problems.
The 3 node triangle can now handle 3D membrane problems in addition to the plane strain/stress problems.
The plate element is now also a 3D element with membrane properties.
It also can handle 3 node plate meshes.
From the membrane, there are also x and y displacements as well as rotations in z.
A lot of the redundant science and graphics were consolidated.
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