Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the Axial Crushing Behavior of Aluminum Cm Circular Members for light-weight

경량화용 Al/CFRP원형 부재의 축 압궤거동에 관한 연구

  • Lee, Kil-Sung (Departmemt of Mechanical Design Engineering Graduate school, Chosun University) ;
  • Cha, Cheon-Seok (Divison of Mechanical and Automotive Engineering, Sunchon National University) ;
  • Yang, In-Young (Department of Mechanical Information Engineering, Chosun University)
  • 이길성 (조선대학교 대학원 기계설계공학과) ;
  • 차천석 (순천대학교 기계자동차공학부) ;
  • 양인영 (조선대학교 기계정보공학과)
  • Published : 2005.09.01
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Abstract

Aluminum member absorbs energy by stable plastic deformation under axial loading. While CFRP(Carbon Fiber Reinforced Plastics) member absorbs energy by unstable brittle failure but its specific strength and stiffness is higher than those of aluminum member. In this study, for complement of detects and synergy effect by combination with the advantages of each member, the axial collapse tests were performed for aluminum CFRP members which are composed of aluminum members wrapped with CFRP outside aluminum circular members. Based on the respective collapse characteristics of aluminum and CFRP members, crushing behavior and energy absorption characteristics were analyzed for aluminum CRRP members which have different CFRP fiber orientation angle and thickness Test results showed that aluminum CFRP members supplemented the unstable brittle failure of CFRP members due to ductile nature of inner aluminum members. It turned out that the CFRP fiber orientation angle and thickness influence energy absorption capability together with the collapse mode of the members.

Keywords

References

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