Computer simulations and experimental study on crash box of automobile in low speed collision

Yanjie Liu; Lin Ding; Shengyuan Yan; Yongsheng Yang

doi:10.1117/12.839365

25 August 2009 Computer simulations and experimental study on crash box of automobile in low speed collision

Yanjie Liu, Lin Ding, Shengyuan Yan, Yongsheng Yang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737562 (2009) https://doi.org/10.1117/12.839365
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Based on the problems of energy-absorbing components in the automobile low speed collision process, according to crash box frontal crash test in low speed as the example, the simulation analysis of crash box impact process was carried out by Hyper Mesh and LS-DYNA. Each parameter on the influence modeling was analyzed by mathematics analytical solution and test comparison, which guaranteed that the model was accurate. Combination of experiment and simulation result had determined the weakness part of crash box structure crashworthiness aspect, and improvement method of crash box crashworthiness was discussed. Through numerical simulation of the impact process of automobile crash box, the obtained analysis result was used to optimize the design of crash box. It was helpful to improve the vehicles structure and decrease the collision accident loss at most. And it was also provided a useful method for the further research on the automobile collision.

Citation Download Citation

Yanjie Liu, Lin Ding, Shengyuan Yan, and Yongsheng Yang "Computer simulations and experimental study on crash box of automobile in low speed collision", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737562 (25 August 2009); https://doi.org/10.1117/12.839365

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