Impact and energy absorption of foam-filled conical frusta tubes

Ahmad, Zaini, Thambiratnam, David P., & Tan, A. (2006) Impact and energy absorption of foam-filled conical frusta tubes. In Infrastructure Theme Conference 2006, 26 Sept 2006, Queensland University of Technology.


The combination of the superior conical shape along with light weight foam will enhance the energy absorption capability of these tubes for use as energy absorber in impact applications. This research extensively employs finite element modeling techniques supported by theoretical, experimental programs and existing numerical data to achieve optimum designs of foam-filled conical frusta tubes as energy absorbers. Presently, finite element models of conical tubes have been preliminarily validated using existing theoretical and numerical models when subjected to static and dynamic loading. A finite element model of a metallic foam-filled tube has been only partly developed, and thus it is not included in this paper. Future work will investigate the behaviour of foam-filled conical tubes under direct and oblique loading conditions and evaluate the influence of parameters such as wall thickness, inclined angle of tune, impact direction and foam density. Furthermore, it will generate research information on the impact behaviour and energy absorption capability of metallic and non-metallic foam-filled conical frusta tubes and facilitate their application in energy absorbing systems when subjected to axial and oblique loading conditions. The outcome of this project will be the development of design guidance for using foam-filled conical frusta as energy absorbers in order to mitigate the adverse effects of impacts. The use of foam-filled conical tubes as energy absorbers represents a new direction in the research into structural crashworthiness and impact applications.

Impact and interest:

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ID Code: 14164
Item Type: Conference Paper
Refereed: Yes
Additional Information: For more information, please contact the author.
Additional URLs:
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2006 (please consult author)
Deposited On: 25 Jul 2008 00:00
Last Modified: 12 Jun 2013 12:31

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