Affiliation:
1. Institut Teknologi Bandung
2. Toyohashi University of Technology
3. Tokyo Institute of Technology
Abstract
In this paper, the prediction and comparison of the behavior of thin-walled prismatic
structures (square tube, top-hat and double-hat sections) in absorbing energy using theoretical and
numerical analysis are presented. Equations to predict crushing length and dynamic mean crushing
force of top-hat and double-hat sections were applied for material mild steel St37 and the effect of
spot weld positions are also figured out. For comparison, an explicit non-linear commercial finite
element code LS-DYNA was used to predict the response of the structures subjected to axial
crushing. It was found that results of numerical methods and theoretical prediction have good
agreement. Assuming that the failure of spot-weld is neglected, mean dynamic crushing force of
double-hat section is 90% higher compared to that of square tube.
Publisher
Trans Tech Publications, Ltd.
Cited by
5 articles.
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