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Powerful Finite Element Analysis package for 2D and 3D constructions (frames and trusses)

Free Windows structural civil engineering software 2D/3D

Interactive structural analysis program that provides preprocessing, analysis, and postprocessing capabilities.

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.ElemFin allows the calculation of: displacements of each nodes, reactions to the supports, stress in each element.

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 method

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 iteration, Stodola iteration, static condensation, Guyan reduction, dynamic condensation, Matlab support and spreadsheet support. Graphical output and mode shape animation via Gnuplot.

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.