Impact finite element analisys
Not an expert about finite elements simulation but this is one of the most interesting programs i’ve found
Project description:
Impact is a finite element program for simulation of dynamic events such as car crashes or other large deformation events. It is kept very simple to make it intuitive to use and easy to change and extend. The program includes a NURBS based pre-processor for modelling, a solver with editor, a post-processor, and a graph plotter for results viewing. Impact also interfaces with several other programs, such as Nastran and Gmsh.
[Freshmeat]