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http://dx.doi.org/10.7234/kscm.2011.24.1.001

Experimental and Numerical Studies on Composite Tubes for the Energy Absorber of High-speed Train  

Nguyen, Cao-Son (KAIST 기계항공시스템학부 항공우주공학 대학원)
Jang, Hong-Kyu (KAIST 기계항공시스템학부 항공우주공학 대학원)
Shin, Jae-Hwan (KAIST 기계항공시스템학부 항공우주공학 대학원)
Son, Yu-Na (KAIST 기계항공시스템학부 항공우주공학 대학원)
Kim, Chun-Gon (KAIST 기계항공시스템학부 항공우주공학)
Publication Information
Composites Research / v.24, no.1, 2011 , pp. 1-9 More about this Journal
Abstract
This paper presents an experimental and numerical study on composite tubes for the energy absorber of the high-speed train. The purpose of the experimental study is to find out which lay-up is the best lay-up for the energy absorber. Four lay-ups were tested using quasi static method: $[0/45/90/-45]_4$, $[0]_{16}$, $[0/90]_8$, $[0/30/-30]_5$. Two triggering methods were used to create initial damage and guarantee the progressive collapse mode: bevel edge and notch edge. As a result, $[0/45/90/-45]_4$ lay-up was find out the best lay-up among the laminates being tested. In the numerical study, a parametric analysis was done to find out the most proper way to simulate the quasi static test of a composite tube using LS-DYNA program. A single composite tube was modeled to be crashed by a moving wall. Comparison between simulation and experiment was done. Reasonable agreement between experiment and analysis was obtained. Dealing with parameter TFAIL and the mass scaling factor, this parametric study shows the ability and the limitation of LS-DYNA in modeling the quasi static test for the composite tube.
Keywords
Composite tubes; Energy absorption; LS-DYNA; Quasi static test;
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  • Reference
1 Mamalis. A. G, Manolakos. D. E, Loannidis. M. B, Papapostolou. D. P, "The static and dynamic axial collapse of CFRP square tubes: Finite element modeling," Composite Structures, Vol. 74, 2006, pp. 213-225.   DOI   ScienceOn
2 LS-DYNA keyword manual, version 971.
3 Kim. J. S, "Fatigue assessment of tilting bogie frame for Korean tilting train: Analysis and static tests," Engineering Failure Analysis, 2005.   DOI   ScienceOn
4 UK Structural requirement for railway vehicles, GM/RT2100, 2000.
5 US Code of Federal Regulations, 49 CRF-Part 238.
6 Tyrell. D. C, "US Rail Equipment Crashworthiness Standards," What can we realistically expect from crashworthiness? Improving train design to withstand future accidents, London, England, May 2nd, 2001.
7 UK Report RSSB T118T118 "Whole train dynamic behavior in collisions and improving crashworthiness," 2006.
8 Jacob. G. C, Fellers.J.F, "Energy Absorption in Polymer Composites for automotive crashworthiness," Journal of Composite Material, Vol. 36, No 07/2002.
9 Farley. G. L, "Effect of fiber and matrix maximum strain on the energy absorption of composite materials," J. Comp. Mater., Vol. 20, 1986, pp. 322-334.   DOI   ScienceOn
10 Farley. G. L, "Energy absorption of composite material and structures," Proceedings of the 43rd American Helicopter Society Annual Forum. St. Louis, USA. pp. 613-627.
11 Thornton. P. H. and Edwards. P. J, "Energy absorption in composite tubes," Composite Materials, Vol. 16, pp. 521-545.
12 Kakogianis. D, Van Hemelrijck. D, Wastiels. J, "Experimental and numerical study of the energy absorption capacity of pultruded composite tubes," 13th European conference on composite materials, ECCM, 2008.
13 Melo. J. D. J, Silva. A. L. S, Villena. E. V, "The effect of processing conditions on the energy absorption capability of composite tubes," Composite structures, Vol. 82, 2008, pp. 622-628.   DOI   ScienceOn
14 Bisagni. C, Di Pietro. G, Fraschini. L, Terletti. D, "Progressive crushing of fiber-reinforced composite structural components of a Formula One racing car," Composite Structures, Vol. 68, 2005, pp. 491-503.   DOI   ScienceOn