Crashworthiness of aluminum/CFRP hybrid member with various stacking conditions

Kil Sung Lee; Woo Chae Hwang; In Young Yang

doi:10.1117/12.779864

1 November 2007 Crashworthiness of aluminum/CFRP hybrid member with various stacking conditions

Kil Sung Lee, Woo Chae Hwang, In Young Yang

Proceedings Volume 6423, International Conference on Smart Materials and Nanotechnology in Engineering; 642346 (2007) https://doi.org/10.1117/12.779864
Event: International Conference on Smart Materials and Nanotechnology in Engineering, 2007, Harbin, China

Abstract

This paper investigates the crashworthiness of aluminum/CFRP hybrid members subjected to axial loads as changing CFRP stacking condition. 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, aluminum/CFRP hybrid members were manufactured and collapse tests were performed for the members. The stacking condition related to the energy absorption of composite materials is being considered as an issue for the structural efficiency. Therefore, the collapse tests were performed with change of the stacking condition. Test results showed that the collapse of the aluminum/CFRP hybrid member complemented unstable brittle failure of the CFRP member due to ductile nature of the inner aluminum member and the stacking condition of aluminum/CFRP hybrid members influence energy absorption capability and collapse mode.

Citation Download Citation

Kil Sung Lee, Woo Chae Hwang, and In Young Yang "Crashworthiness of aluminum/CFRP hybrid member with various stacking conditions", Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642346 (1 November 2007); https://doi.org/10.1117/12.779864

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