Just insert the CAELinux LiveDVD in your computer to turn it into a professional CAE workstation: no installation is required!
Based on the open-source CAE software Salomé & Code_Aster, you can load STEP / IGES geometry in Salomé and start partitioning and meshing your problem in just 5 minutes.
Then you can simulate incredibly complex physics with the ISO 9001 certified FE solver Code_Aster: non-linear thermo-mechanics, coupled fluid-structure dynamics, sismic / non-linear explicit dynamics, contacts, visco-plasticity, in other words all that you could imagine can be simulated with Code_Aster!! Then reload your results files in Salomé to post-process your data in 3D.