Feasibility Of Using A16060s-T6 For Fabricating Automobile Crash Boxes

This study examined the feasibility of replacing A16082S-T6, which features high rigidity, with A16060S-T6, which features relatively low rigidity, for the crash box in automobiles. Tensile properties of these alloys were evaluated using crash box specimens, by means of compression and crash tests; compression tests were conducted on the crash boxes, whereas crash tests were conducted using a bumper equipped with a crash box. Results of the compression and crash tests indicate that the crash box composed of A16082S-T6 showed better performance than that composed of A16060S-T6, although the impact energy absorption efficiency of the former was lower. Furthermore, the damage to the A16060S-T6 crash box was less than that to the A16082S-T6 crash box, indicating the superior collision performance of the former.