Home List of Titles Energy absorption of expansion tubes using a conical-cylindrical die: experiments and numerical simulation
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/85179
- Energy absorption of expansion tubes using a conical-cylindrical die: experiments and numerical simulation
- Yang, Jialing; Luo, Min; Hua, Yunlong; Lu, Guoxing
- This paper is concerned with the plastic energy absorption behavior of expansion tubes under axial compression by a conical–cylindrical die. The experiments and numerical simulation using FEM are presented in this paper. Experiments were conducted on circular 5A06 aluminum tubes with an internal radius fixed at 22.5 mm and different thicknesses between 1 and 5 mm; the tubes were pressed axially onto a series of conical–cylindrical dies each with a different semi-angle from 5° to 20°, where the radius of the cylindrical part was 24 mm. A numerical analysis was performed to investigate the tube deformation and the friction between the tube and die. A good fit of the experimental data was obtained by taking the value of the friction coefficient μ=0.05. Based on these experimental and numerical results, characteristics of driving force–stroke curves in different deformation modes are discussed in detail. Effects of tube dimensions and semi-angle of the die on steady-state force and energy absorption efficiency are also presented. Based on these experimental studies, a theoretical analysis to explain the deformation mechanisms of the tube expanded by a die is carried out and will be given in a subsequent paper.
- Publication type
- Journal article
- International Journal of Mechanical Sciences, Vol. 52, no. 5 (May 2010), pp. 716-725
- Publication year
- FOR Code(s)
- 102 Applied Mathematics; 0905 Civil Engineering; 0913 Mechanical Engineering
- Conical-cylindrical die; Energy absorption; Expansion tubes
- Publisher URL
- Copyright © 2009 Elsevier Ltd. All rights reserved.
- Additional information
- The work described in this paper is financially supported by the National Natural Science Foundation of China under Grant no. 10532020 and the State Key Laboratory of Tribology, Tsinghua University.
- Peer reviewed