A numerical performance comparison of a dual-phase steel and aluminium alloy bumper bar system

被引：12
|
作者：
Simon, Peter [2 ]
Beggs, Peter D. [1 ]
机构：
[1] Swinburne Univ Technol, Fac Engn & Ind Sci, CAST Cooperat Res Ctr, IRIS, Hawthorn, Vic 3122, Australia
[2] Leichtmetallkompetenzzentrum Ranshofen GmbH LKR, Ranshofen, Austria
来源：
INTERNATIONAL JOURNAL OF CRASHWORTHINESS | 2010年 / 15卷 / 04期
关键词：
energy absorption; bumper bar system; light weight; dual-phase steel; aluminium alloy; crash analysis; BEAM-LONGITUDINAL SYSTEMS; OFFSET IMPACT BEHAVIOR;
D O I：
10.1080/13588261003696441
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bumper bar systems are important automotive structures to help protect passengers during frontal and rear collisions. This paper presents the outcomes of a numerical modelling study of a simple rectangular cross section bumper bar system using the explicit finite element code LS Dyna for a low velocity (16 km/h) centre pole frontal impact. The study utilises and compares a dual-phase steel (DP600) and two aluminium alloys (A16061T6 and A17108T6). A simple material model using isotropic elastic plastic material behaviour is utilised together with a failure criterion. When the bumper system weight is held constant by reducing the wall thickness of the steel bumper system, both aluminium alloy bumpers outperform the high-strength dual-phase steel.
引用
收藏
页码：425 / 442
页数：18
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