The frontal impact behaviour of a low volume, niche market sportscar with a spaceframe chassis has been investigated using the non-linear finite element code Oasys LS-DYNA3D. In considering the options for crashworthiness improvements, it was first essential to understand and have confidence in the overall structural response that was being predicted. An experimental test programme has supported the finite element predictions and has included the impact testing of typical brazed tubular structures and an automotive wheel and tyre. Results from a 23 000 finite element vehicle model correlate well with the digitized results of a crash test video.
Oasys LS-DYNA3D Reference Manual, Version 6.0, 1993 (Oasys Limited).
2.
Unigraphics Solid Modelling User Manual, Version 11.0, 1995 (Electronic Data Systems Corporation).
3.
HyperMesh Reference Manual, Version 2.1, 1997 (Altair Computing Inc.).
4.
Tubes Division British Steel CorporationConstruction with hollow steel sections. Haynes Cannon Limited, 1984.
5.
JonesN.Structural Failure. 1989 (Wiley-Interscience, New York).
6.
BirchR. S.JonesN.Dynamic and static tensile tests on sheet steel specimens. Technical Report, University of Liverpool Impact Research Centre, September 1992.
7.
WilliamsT. D.The frontal impact crashworthiness of a spaceframe chassis vehicle. PhD thesis, School of Mechanical Engineering and Keyworth Institute of Manufacturing Systems Engineering, University of Leeds, February 1998.
8.
MADYM02D/3D User's Manuals, Version 4.3, April 1990 (TNO, The Netherlands).
