NEi Nastran - General purpose finite element analysis tool which is used to analyze linear and nonlinear stress, dynamics, and heat transfer characteristics of structures and mechanical components.

Femap - A pre- and post-processor used by engineering organizations worldwide to model various products, processes, and systems. Its graphical user interface provides streamlined, direct access to all Femap® functionality.

Autodesk Inventor  product line provides a comprehensive and flexible set of software for 3D mechanical design, product simulation, tooling creation, and design communication,

Solidworks  integrates a broad range of mechanical CAD, design validation and product data management. Easy to use, fairly affordable and good for small to medium complexity projects.

OpenFOAM (Open Field Operation and Manipulation) CFD Toolbox can simulate anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics, electromagnetics and the pricing of financial options. This is open source (free) Linux application distributed under GPL license but lacks GUI and thus requires separate preprocessor.

LS-Dyna - Multiphysics finite element simulation program, arguably industry standard for simulating complex transient dynamic events such as explosions, car crashes, missile penetration, metal forming etc.

Altair Hyperworks suite - extremely capable collection  of engineering software that includes pre- & postprocessing tools, powerful design optimization as well as multibody dynamics simulation. Suitable for simulations of large assemblies.

Multiframe 4D - A pre- and post-processor used by engineering organizations worldwide to model various products, processes, and systems. Its graphical user interface provides streamlined, direct access to all Femap® functionality.