Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Bending Characteristic of CFRP & Hybrid Shaped Hat Structure Member According to Stacking Orientation Angle

적층각도변화에 따른 CFRP & 혼성 모자형 구조부재의 굽힘 특성

  • 김지훈 (조선대학교 기계설계공학과) ;
  • 김정호 (조선대 대학원 첨단부품소재공학과) ;
  • 차천식 (동강대학 소방안전관리과) ;
  • 양인영 (조선대 기계설계공학과)
  • Published : 2008.06.15
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Abstract

In this study, CFRP(Carbon Fiber Reinforced Plastics) that has high specific strength and elastic modulus and low thermal strain was used as a material for the lightweight structural member. CFRP is a fiber material as anisotropic material. The anisotropic material is characterized by the change of its mechanical properties according to stacking orientation angle. CFRP orientation angle was oriented in [A/B]s in order to examine the effect of CFRP orientation angle on the characteristics of energy absorption. CFRP is very weak to the impact from the outside. So, when impact is applied to CFRP, its strength is rapidly lowered. The hybrid material was manufactured by combining CFRP to aluminum which is lightweight and widely used for structural members of the automobile. The hybrid member was shaped as a side member that could support the automobile engine and mount and absorb a large amount of impact energy at the front-end in case of automobile collision. The bending test device was manufactured in accordance with ASTM standard, and mounted to UTM for bending test. For comparing bending characteristics of the hybrid member with those of Aluminum and CFRP member, tests were performed for aluminum, CFRP and hybrid member, respectively.

Keywords

References

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