ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, the prediction and comparison of the behavior of thin-walled prismaticstructures (square tube, top-hat and double-hat sections) in absorbing energy using theoretical andnumerical analysis are presented. Equations to predict crushing length and dynamic mean crushingforce of top-hat and double-hat sections were applied for material mild steel St37 and the effect ofspot weld positions are also figured out. For comparison, an explicit non-linear commercial finiteelement code LS-DYNA was used to predict the response of the structures subjected to axialcrushing. It was found that results of numerical methods and theoretical prediction have goodagreement. Assuming that the failure of spot-weld is neglected, mean dynamic crushing force ofdouble-hat section is 90% higher compared to that of square tube
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.387.pdf
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