Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Impact Characteristics of CFRP Structural Member according to the Variation of Stacking Condition and Impact Energy

적층구성과 충돌에너지의 변화에 따른 CFRP 구조부재의 충격특성

  • Yeo, In-Goo (Department of Advanced Parts & Materials Engineering, Graduate School, Chosun University) ;
  • Choi, Ju-Ho (Department of Advanced Parts & Materials Engineering, Graduate School, Chosun University) ;
  • Choi, Yeong-Min (Department of Advanced Parts & Materials Engineering, Graduate School, Chosun University) ;
  • Yang, Yong-Jun (Department of Fire Safety Management) ;
  • Hwang, Woo-Chae (Department of Advanced Parts & Materials Engineering, Graduate School, Chosun University) ;
  • Yang, In-Young (Department of Mechanical Design Engineering, Chosun University)
  • Received : 2013.06.14
  • Accepted : 2013.11.26
  • Published : 2013.12.15
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Abstract

This aims to examine experimentally the absorption behavior and strength of circular CFRP members with different stacking configurations on exposure to a separate impact velocity. In addition, considered the dynamic characteristics. Circular and square CFRP members were prepared from 8-ply unidirectional prepreg sheets stacked at different angles ($0^{\circ}/90^{\circ}$ and $90^{\circ}/0^{\circ}$, where the $0^{\circ}$ direction coincides with the axis of the member) and interface numbers (2, 4, and 6). Based on the collapse characteristics of the circular CFRP members. In this study, for the circular members, the impact energies at crosshead speeds of 5.52 m/s, 5.14 m/s, and 4.57 m/s are 611.52 J, 529.2 J, and 419.44 J (at circular members), respectively. Likewise, for the square members, the impact energies at crosshead speeds of 2.16 m/s, 1.85 m/s, and 1.67 m/s are 372.4 J, 274.4 J, and 223.44 J (at square members).

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References

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