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Proceedings Paper

Energy absorption characteristics of lightweight structural member by stacking conditions
Author(s): Juho Choi; Yongjun Yang; Woochae Hwang; Seokbeom Pyeon; Hanki Min; Ingoo Yeo; Inyoung Yang
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Paper Abstract

The recent trend in vehicle design is aimed at improving crash safety and environmental-friendliness. To solve these issues, the needs for lighter vehicle to limit exhaust gas and improve fuel economy has been requested for environmental-friendliness. Automobile design should be made for reduced weight once the safety of vehicle is maintained. In this study, composite structural members were manufactured using carbon fiber reinforced plastic (CFRP) which are representative lightweight structural materials. Carbon fiber has been researched as alternative to metals for lightweight vehicle and better fuel economy. CFRP is an anisotropic material which is the most widely adapted lightweight structural member because of their inherent design flexibility and high specific strength and stiffness. Also, variation of CFRP interface number is important to increase the energy absorption capacity. In this study, one type of circular shaped composite tube was used, combined with reinforcing foam. The stacking condition was selected to investigate the effect of the fiber orientation angle and interface number. The crashworthy behavior of circular composite material tubes subjected to static axial compression under same conditions is reported. The axial static collapse tests were carried out for each section member. The collapse modes and the energy absorption capability of the members were analyzed.

Paper Details

Date Published: 12 April 2012
PDF: 7 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84092V (12 April 2012); doi: 10.1117/12.923322
Show Author Affiliations
Juho Choi, Chosun Univ. (Korea, Republic of)
Yongjun Yang, Dongkang College (Korea, Republic of)
Woochae Hwang, Chosun Univ. (Korea, Republic of)
Seokbeom Pyeon, Dongkang College (Korea, Republic of)
Hanki Min, Sunghwa College (Korea, Republic of)
Ingoo Yeo, Chosun Univ. (Korea, Republic of)
Inyoung Yang, Chosun Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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