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http://dx.doi.org/10.7467/KSAE.2017.25.1.011

Low Speed Crash Behaviour of Aluminium Bumper System W.R.T. Design Variables  

Kim, Dae Young (Department of Mechanical Engineering, Kongju National University)
Han, Bo Seok (Business Development, Kyoung Ki Industrial Co., Ltd.)
Hong, Min Sun (Business Development, Kyoung Ki Industrial Co., Ltd.)
Kim, Dong Ok (Materials & Process Development Center, Korea Automotive Technology Institute)
Cheon, Seong Sik (Department of Mechanical & Automotive Engineering, Kongju National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.25, no.1, 2017 , pp. 11-18 More about this Journal
Abstract
In the present study, the low speed (4 km/h) crash behaviour of an aluminium bumper system was characterised by FE analyses based on the FMVSS 581, which regulates automotive bumpers. Two types of cross-sectional designs, i.e., Model 1, which contains a single rib and Model 2, double ribs, have been considered along with Al7021, 6082 and 6060 for the aluminium bumper back beam. Variations in thickness starting from 2 to 4 mm of the bumper system cross-section in the FE model was implemented in order to investigate the thickness effect on the bumper's crash behaviour.. Three kinds of design variables, namely, number of ribs, material and thickness, are considered. The FE analysis results are summarised with the maximum load and the Specific Energy Absorption (SEA) since they are the key factors in determining the crashworthiness of automotive structures. The results may also be able to indicate how to achieve lightweight structure of the automotive bumper system either directly or indirectly.
Keywords
Crash behaviour; Design variable; Bumper standard, FMVSS part 581; Specific Energy Absorption, SEA;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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