Folding-crumpling of thin-walled aluminium frusta
- 1 January 2002
- journal article
- Published by Informa UK Limited in International Journal of Crashworthiness
- Vol. 7 (1), 67-78
- https://doi.org/10.1533/cras.2002.0207
Abstract
This paper reports a new innovative mode of plastic deformation of specific thin-walled frusta when crushed axially between two rigid parallel plates with Free-fixed boundary conditions. This folding-crumpling mode is only observed in frusta within a limited range of angles. Deformable energy absorbers are briefly introduced with special attention to frusta. Experimental results for the observed deformation mode of capped-end machined aluminium frusta under quasi-static testing condition are given. Obtained results show excellent absorbing capacity of the folding-crumpling mode when compared to the other modes reported in the literature such as crushing or inversion.Keywords
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