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Aluminium Crash Members in Axial and Bending Collapse
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English
Abstract
The strong interest in producing lightweight car bodies in aluminium has prompted the need to understand the behaviour of typical crash members fabricated using mainly AA5000 and AA6000 materials. In studying the sometimes complex impact load cases, it is often useful to examine the axial and bending collapse modes seperately in order to assess the geometric and material influences, and this is the approach taken in this paper. A number of organisations have reported various mechanistic approaches to predicting performance in axial and bending collapse, and our method has been to assess, and where necessary, refine the best of these for aluminium sections in order to produce effective design guidlines for the automotive industry. This work is largely complete for axial crush and examples of design application from concept to structural testing are given. This work is less advanced for bending collapse, but this paper illustrates the principal modes encountered and the design implications for section geometry and material selection.
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Citation
Meadows, D., Seeds, A., McGregor, I., and Kenyon, M., "Aluminium Crash Members in Axial and Bending Collapse," SAE Technical Paper 922113, 1992, https://doi.org/10.4271/922113.Also In
References
- McGregor I.J. Seeds A.D. Nardini D. “The Design of Impact Absorbing Members for Aluminium Structured Vehicles” SAE Technical Paper Series 900796 1990
- Wierzbicki T. Abramowicz W. “On the Crushing Mechanics of Thin-Walled Structures” 50 Dec 1983
- Shirasawa K. et al “Mean Crushing Strength of Closed Hat Section Members” Bulletin of J. SAE 7 1976
- MARC Finite Element Code MARC Analysis Research Corporation California
- DYNA3D Finite Element Code Livermore Software Technology Corporation
- CRASH-CAD software Impact Design Inc. MA01890 USA
- “Advanced Dynamic Testing of Automotive and Aerospace Sheet Metal Structures” Montagnani M. Joint Research Centre Ispra (Va),Italy
- “Impact Design” Wierzbicki T. Impact Design Inc 12 Wilson St, Winchester, MA01890,USA 1 Autumn 1990
- Magee C.A. Thorton P.H. SAE Technical Paper Series 780434 1978
- Seeds A. Sheasby P.G. SAE Technical Paper Series 870151 1987
- Von Karman T Sechler E.G Donnell L.H Trans ASME 54 1932 53
- Kecman D. Ing, Dr “Manual of Crashworthiness” 5 Centre of Transportation Studies, M.I.T
- “Strength of Aluminium” Marsh Fifth 41 Alcan Canada Products Ltd 1983
- Lu. G. “The Static and Dynamic Bending Collapse Behaviour of Vehicle Structural Components” M.Sc. Thesis Cranfield Institute of Technology England
- Kecman D Ing, Dr. “Bending Collapse of Rectangular Section Tubes and Square Section Tubes” Int. J. Mech. Sci 25 9 10 1983