Numerical studies on the quasi-static axial crushing and energy absorption of foam-filled conical tubes

Ahmad, Zaini & Thambiratnam, David P. (2008) Numerical studies on the quasi-static axial crushing and energy absorption of foam-filled conical tubes. [Working Paper] (Unpublished)


Foam-filled thin-walled tubes are considered to be desirable energy absorbers under axial loading due to their higher energy absorption and crush force efficiency compared with empty tubes. This paper treats the energy absorption response of foam-filled conical tubes under quasi static axial loading, using finite element techniques. Finite element model of the foam filled conical tube was developed using explicit non-linear finite element code LS-DYNA and validated using experimental and existing numerical results. Influence of important parameters such as wall thickness, semi-apical angle and density of foam filler was investigated and the results highlight the advantages of using foam-filled conical tubes as energy absorber. Results also indicate that the crush and energy absorption performances of conical tubes are significantly enhanced by foam filling. The practical outcomes of this project are the development of (i) design information for the use of foam-filled conical tubes as energy absorbers in impact loading applications and (ii) empirical formulae for crush force efficiency of these devices

Impact and interest:

2 citations in Web of Science®
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 14165
Item Type: Working Paper
Refereed: Yes
Additional Information: For more information, please refer contact the author.
Keywords: conical tube, foam, filled, axial crushing, energy absorption, finite element
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 David P. Thambiratnam and Zaini Ahmad
Deposited On: 25 Jul 2008 00:00
Last Modified: 08 Jul 2014 00:06

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page