Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 21    Special 1    March 2011

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Collapse behavior evaluation of hybrid thin-walled member by
stacking condition
Kil-Sung LEE1, Hyeon-Kyeong SEO2, Yong-June YANG2,
Woo-Chae HWANG2, Kwang-Hee IM3, In-Young YANG4

1. R&D Center, Dacc LTD., 948-13 Dunsan-ri, Bongdong-eup, Wanju-gun, Jeonbuk 565-902, Korea;
2. Departments of Advanced Parts and Materials Engineering, Graduate School, Chosun University,
375 Seosuk-dong, Dong-gu, Gwangju 501-759, Korea;
3. Department of Automotive Engineering, Woosuk University, 490 Hujung-ri, Samrae-up,
Wanju-kun, Chonbuk 567-701, Korea;
4. Departments of Mechanical Design Engineering, Chosun University, 375 Seosuk-dong,
Dong-gu, Gwangju 501-759, Korea

Abstract:The recent trend of vehicle design aims at crash safety and environmentally-friendly aspect. For the crash safety aspect, the energy absorbing members should absorb collision energy sufficiently but for the environmentally-friendly aspect, the vehicle structure must be light weight in order to improve the fuel efficiency and reduce the tail gas emission. Therefore, the light weight of vehicle must be achieved in a securing safety status of crash. An aluminum or carbon fiber reinforced plastics (CFRP) is representative one of the light-weight materials. Based on the respective collapse behavior of aluminum and CFRP member, the collapse behavior of hybrid thin-walled member was evaluated. The hybrid members were manufactured by wrapping CFRP prepreg sheets outside the aluminum hollow members in the autoclave. Because the CFRP is an anisotropic material whose mechanical properties, such as strength and elasticity, change with its stacking condition, the effects of the stacking condition on the collapse behavior evaluation of the hybrid thin-walled member were tested. The collapse mode and energy absorption capability of the hybrid thin-walled member were analyzed with the change of the fiber orientation angle and interface numbe.


Key words: collapse behavior; aluminum and CFRP; hybrid thin-walled member; stacking condition

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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