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Crashworthiness of an Auto-body Member with the Forming Effect  

Kim, Kee-Poong (Automotive Steels Application Research Group, POSCO)
Song, Jung-Han (Department of Mechanical Engineering, KAIST)
Huh, Hoon (Department of Mechanical Engineering, KAIST)
Kim, Hyun-Sup (Kia Motor Corporation)
Hong, Seok-Gil (Kia Motor Corporation)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.1, 2004 , pp. 91-98 More about this Journal
Abstract
This paper is concerned with crash analysis for an auto-body member with the forming effect. Auto-body members such as a front frame assembly are fabricated with sheet metal forming processes that induce forming histories such as the plastic work hardening and non-uniform thickness distribution. Numerical simulation is carried out with LS-DYNA3D in order to identify the forming effect on the crashworthiness. The crash analysis of the front frame assembly with the forming effect leads to a different result from that without the forming effect. Crashworthiness such as the load-carrying capacity, the crash mode and the energy absorption are calculated to investigate and identify the forming effect. It is fully demonstrated that the design of auto-body members needs to consider the forming effect for accurate assessment of the load-carrying capacity and the deformation mechanism of the formed members.
Keywords
Crashworthiness; Forming effect; Auto-body member; Strain hardening; Thickness distribution;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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