Axisymmetric progressive crushing of circular tubes

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/1026

Title: Axisymmetric progressive crushing of circular tubes
Author(s): Huang, Xiaodong; Lu, Guoxing
Abstract: This paper presents further investigations into the axisymmetric progressive crushing behaviour of metal tubes subject to quasi-static axial loads. Based on experiments and a finite element analysis, a new, more realistic theoretical model is developed by introducing the concept of effective plastic hinge length which is proportional to tube thickness. The theoretical crushing force history, mean crushing force and plastic half-wavelength are compared with experiments and finite element analysis results. It is found that for normalized mean crushing force, P m / M o , better agreement is obtained using the present theoretical model than previous ones. This analysis helps explain the paradox between the D/t exponent calculated from experimental results and previous theoretical predictions. Also, a good estimate of plastic half-wavelength, h , is also obtained.
Publication type: Journal article
Research centre: Swinburne University of Technology. School of Engineering and Science
Source: International journal of crashworthiness, Vol. 8, no. 1 (Jan. 2003), pp. 87-95
Publication year: 2003
Publisher: Woodhead Publishing
Format: pp. 87-95
ISSN: 1358-8265
Publisher URL: International journal of crashworthiness
Publisher URL: http://dx.doi.org/10.1533/ijcr.2003.0223
Peer reviewed