Utilization of Finite Element Analysis in Design and Performance Evaluation of CFRP Bicycle Frames

유한요소해석을 이용한 CFRP 자전거 프레임의 설계 및 성능 평가

  • Lee, Yong-Sung (Graduate School of NID Fusion Technology, Seoul Nat'l Univ. of Science and Technology) ;
  • Shin, Ki-Hoon (Dept. of Mechanical and Automotive Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Cheong, Seong-Kyun (Dept. of Mechanical and Automotive Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Choi, Ung-Jae (Win & Win Archery) ;
  • Kim, Young-Keun (Win & Win Archery) ;
  • Park, Kyung-Rea (Win & Win Archery) ;
  • Kim, Hong Seok (Dept. of Mechanical and Automotive Engineering, Seoul Nat'l Univ. of Science and Technology)
  • 이용성 (서울과학기술대학교 NID 융합기술전문대학원) ;
  • 신기훈 (서울과학기술대학교 기계.자동차공학과) ;
  • 정성균 (서울과학기술대학교 기계.자동차공학과) ;
  • 최웅재 ((주)윈앤윈) ;
  • 김영근 ((주)윈앤윈) ;
  • 박경래 ((주)윈앤윈) ;
  • 김홍석 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2012.06.19
  • Accepted : 2012.08.27
  • Published : 2013.01.01


With the continuing demand for lightweight bicycles, carbon fiber composite materials have been widely used in manufacturing bicycle frames and components. Unlike general isotropic materials, the structural characteristics of composite materials are strongly influenced by the staking directions and sequences of composite laminates. Thus, to verify the design process of bicycles manufactured using composites, structural analysis is considered essential. In this study, a carbon-fiber-reinforced plastic (CFRP) bicycle frame was designed and its structural behavior was investigated using finite element analysis (FEA). By measuring the failure indices of the fiber and matrix under various stacking sequences and loading conditions, the effect of the stacking condition of composite laminates on the strength of the bicycle structure was examined. In addition, the structural safety of the bicycle frame can be enhanced by reinforcing weak regions prone to failure using additional composite laminates.


Composite Material;Carbon Fiber;Finite Element Analysis;Bicycle Frame


Grant : 양궁 기술을 이용한 경량 자전거 프레임용 서스펜션 장치 개발

Supported by : 지식경제부


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