Crashworthiness Assessment of Auto-body Members Considering the Fabrication Histories
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Daejeon, 305-701 (Korea, Republic of)
- Automotive Steels Research Center, POSCO Technical Research Institute, Gwangyang-Si, Jeonnam, 545-090 (Korea, Republic of)
- Research and Development Division, Hyundai Motor Company and Kia Motors Corporation, Namyang-myun, Whasung-gun, Kyunggi-do, 445-706 (Korea, Republic of)
This paper is concerned with crashworthiness of auto-body members considering the effect of fabrication. Most auto-body members are fabricated with sheet metal forming process and welding process that induce fabrication histories such as the plastic work hardening, non-uniform thickness distribution and residual stress. Crash simulation is carried out for auto-body members with LS-DYNA3D in order to identify the fabrication effect on the crashworthiness. The analysis calculated crash mode, the reaction force and the energy absorption for crashworthiness assessment with the forming effect. The result shows that the crash analysis with considering the forming history leads to a different result from that without considering the forming effect. The analysis results demonstrate that the design of auto-body members should be carried out considering the forming history for accurate assessment of the crashworthiness.
- OSTI ID:
- 20726120
- Journal Information:
- AIP Conference Proceedings, Vol. 778, Issue 1; Conference: NUMISHEET 2005: 6. international conference and workshop on numerical simulation of 3D sheet metal forming process, Detroit, MI (United States), 15-19 Aug 2005; Other Information: DOI: 10.1063/1.2011212; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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