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Proceedings Paper

The optimization of collapse energy absorption capacity for spot-welded members
Author(s): Cheon-Seok Cha; Jun Woo Park; Hyeon Kyeong Seo; In Young Yang
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Paper Abstract

The front-end side members of vehicles are structures with the greatest energy absorbing capability in a front-end collision. These side members mostly consist of spot-welded single hat shape and required to have a high stiffness together with easiness to collapse sequentially to absorb more impact energy. When structural members are subjected to axial loadings, stress is concentrated on their edges. Thus, in order to improve the front-end collision performance for vehicle, this study presents a systematic optimal design process to maximize the collapse energy absorption capacity of front-end side member. The energy absorption capacity of the side member was analyzed according to change of sectional shape and sectional area ratio (sectional area ratio of flat member to "0" shaped member). Based on the experimental result of these side members, the impact simulation were carried out and compared with experimental results.

Paper Details

Date Published: 1 November 2007
PDF: 7 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642366 (1 November 2007); doi: 10.1117/12.780373
Show Author Affiliations
Cheon-Seok Cha, Dongkang College (South Korea)
Jun Woo Park, Chosun Univ. (South Korea)
Hyeon Kyeong Seo, Chosun Univ. (South Korea)
In Young Yang, Chosun Univ. (South Korea)

Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering
Shanyi Du; Jinsong Leng; Anand K. Asundi, Editor(s)

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