An Impact Resistant Design to a Special Vehicle

The objective of the study is to improve the impact resistant performance of a special vehicle’s front sliding plate. For this, a performance evaluation indicator called critical failure velocity is proposed in this paper. By regarding the impact velocity as the variable, this paper carried out a numerical simulation of the changeable stress and deformation due to the impact on the different front sliding plates which are made by aluminium alloy, high strength steel and special engineering plastics by ABAQUS／Expticit. In this way, the relationship between various impact velocities and maximum Mises stress on the front sliding plate can be got, and the critical failure velocities can be found through the relationship. Then, as a comparative analysis of various materials’ critical failure velocities has been made in this paper, the front sliding plate’s impact resistant design