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The Impact Collapse Characteristics of Al/CFRP Members for Light-Weight

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Abstract:

In this study, the impact collapse tests were performed to investigate collapse characteristics of Al/CFRP member which were composed of aluminum members wrapped with CFRP (Carbon Fiber Reinforced Plastics) outside aluminum member. Aluminum members absorb energy by stable plastic deformation, while CFRP members absorb energy by unstable brittle failure with higher specific strength and stiffness than those in the aluminum member. In an attempt to achieve a synergy effect by combing the two members, Al/CFRP members were manufactured and impact collapse tests were performed for the members. Based on the respective collapse characteristics of aluminum and CFRP members, the collapse modes and energy absorption capability were analyzed for Al/CFRP member which have different fiber orientation angle of CFRP. Test results showed that the collapse of the Al/CFRP member complemented unstable brittle failure of the CFRP member due to ductile nature of the inner aluminum member and the fiber orientation angle of Al/CFRP members influence energy absorption capability and collapse mode.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

881-884

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.881

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Online since:

October 2006

Authors:

In Young Yang, Kil Sung Lee, Cheon Seok Cha

Keywords:

Al/CFRP Member, Collapse Mode, Energy Absorption Capability, Fiber Orientation Angle of CFRP, Impact Collapse Test

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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