ANSYS Autodyn software is a versatile explicit analysis tool for modeling the nonlinear dynamics of solids, fluids, gases and their interactions. The product has been developed to provide advanced capabilities within a robust, easy-to-use software tool. Simulation projects can be completed with significantly less effort, less time and lower labor costs than with other explicit programs. This high productivity is a result of the easy-to-use, quick-to-learn, intuitive, interactive graphical interface implemented. Time and effort are saved in problem setup and analysis by automatic options to define contact, by coupling interfaces and by minimizing input requirements using safe logical defaults.