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Toughness Enhancement of Carbon Fiber Reinforced Composites for Automobile using Silica Fume

실리카 퓸을 이용한 자동차용 탄소섬유강화복합재의 인성 강화

  • Lim, Sungmook (School of Mechanical Engineering, Chonnam National University) ;
  • Yu, Jaesang (Multifunctional Structural Composite Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Lee, Wonoh (School of Mechanical Engineering, Chonnam National University)
  • 임성묵 (전남대학교 기계공학부) ;
  • 유재상 (한국과학기술연구원 구조용 복합소재 연구센터) ;
  • 이원오 (전남대학교 기계공학부)
  • Received : 2018.09.18
  • Accepted : 2018.11.27
  • Published : 2018.11.30

Abstract

The age of electric vehicle is coming. One of the most important problems to be solved for popularization of electric vehicle is fuel economy. To increase fuel economy of electric vehicles, it is necessary to improve the performance of the battery or the car body should be lighter than now. To solve the problem of the car body, change the car body's material to carbon fiber reinforced composites can be an excellent answer. However, the part made from carbon fiber reinforced composites is vulnerable to accidents due to their high brittleness. In this study, ductile silica fume was added into the carbon fiber composites to enhance toughness. To examine this, various amounts and sizes of silica fume were considered and the toughness enhancement was examined by performing tensile tests.

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