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A Study on the Collapse Modes and Energy Absorption Characteristics of AI/CFRP Compound Tubes Under Axial Compression

축 하중을 받는 Al/CFRP 혼성튜브의 압궤모드와 에너지흡수 특성에 관한 연구

  • 차천석 (순천대학교 기계자동차공학부) ;
  • 이길성 (조선대학교 대학원 기계설계공학과) ;
  • 정진오 (순천대학교 기계자동차 공학부) ;
  • 양인영 (조선대학교 기계정보공학과)
  • Published : 2004.11.01

Abstract

The compressive axial collapse tests were performed to investigate collapse modes and energy absorption characteristics of Al/CFRP compound tubes which are aluminum tubes wrapped with CFRP(Carbon Fiber Reinforced Plastics) outside the aluminum circular and square tubes. Based on collapse characteristics of aluminum tubes and CFRP tubes respectively, the axial collapse tests were performed for Al/CFRP compound tubes which have different CFRP orientation angles. Test results showed that Al/CFRP compound tubes supplemented the unstable brittle failure of CFRP tubes due to ductile nature of inner aluminum tubes. In the light-weight aspect, specific energy absorption were the highest for Al/CFRP, CFRP in the middle, and aluminum the lowest. Also, specific energy absorption of circular tubes was higher than square tubes'. It turned out that CFRP orientation angle of Al/CFRP compound tubes influence specific energy absorption together with the collapse modes of the tubes.

Keywords

Compound Tubes;Compressive Axial Collapse;Specific Energy Absorption;Collapse Modes

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