St is described as 'Tailored for 3D linear structural analysis, and the frame element includes options for Saint Venant torsion, warping torsion, geometric stiffness, and shear deformation. It has a growing element library that will include plane membranes, plates, shells, and brick elements' and is an app. There are eight alternatives to St for Windows, Mac and Linux. The best St alternative is Estru3D, which is both free and Open Source. Other great apps like St are Structurix, MASTAN2, FRAMEWORK 2D+3D and Analysis for Windows.
SourceForge presents the Estru3D project. Estru3D is an open source application. SourceForge provides the world's largest selection of Open Source Software. Structural analysis using the Stiffness Matrix...
Solve plane problems with elements: bars, beams, triangulars and space problems with elements: bars, beams, rectangular element for the calculation of the board flex, triangular element for the calculation of revolution solid.
Interactive structural analysis program that provides preprocessing, analysis, and postprocessing capabilities.
Powerful Finite Element Analysis package for 2D and 3D constructions (frames and trusses)
SAS-CIVIL is intented as a finite elements menthod software, with application oriented to civil and structural engineer, it is designed in two modules, one for analisys and another for desing, all under GNU license.
Fachwerk is aimed at structural engineers who analyse and design reinforced concrete structures. It intends to simplify the application of discontinuous stress fields and strut-and-tie models.
Free software for static and dynamic analysis of 3D moment-resisting elastic frames and trusses. Written in ANSI C. Source code includes: frame analysis with elastic and geometric stiffness, LDL' decomposition, LU decomposition, Newton-Raphson iteration, sub-space...
