WIT Press


Investigation Of Axially Compressed Frusta As Impact Energy Absorbers

Price

Free (open access)

Paper DOI

10.2495/CON990421

Volume

24

Pages

13

Published

1999

Size

1,193 kb

Author(s)

A.A.N. Aljawi and A.A. Alghamdi

Abstract

This paper reports, both experimentally and analytically, two new modes of plastic deformations of frusta when used as collapsible energy absorbers. Deformable energy absorbers are briefly introduced, and their relevance in crash protection systems is stressed. A general review of literature is presented on energy absorption by metallic absorber of various cross sections with special attention to frusta. Experimental results for the two deformation modes of capped spun aluminum frusta under quasi-static testing condition are given. An Explicit version of ABAQUS 5.7-3 FE code is used for computing and describing the deformation modes of the frusta. Good agreement is obtained between the experimental results and the FE

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