Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/94758

Title

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

Author(s)

Simon, Peter;  Beggs, Peter D.

Abstract

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.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne

Source

International Journal of Crashworthiness, Vol. 15, no. 4 (Aug 2010), pp. 425-442

Publication year

2010

FOR Code(s)

0905 Civil Engineering

Keyword(s)

Aluminium alloys;  Bumper bar systems;  Crash analysis;  Dual-phase steel;  Energy absorption;  Light weight

Publisher

Taylor & Francis

ISSN

1358-8265

Publisher URL

http://dx.doi.org/10.1080/13588261003696441

Copyright

Copyright © 2010 Taylor & Francis.

Peer reviewed