A Study on the Impact Fracture Behavior of Carbon Fiber Reinforced Plastics

CFRP 복합재료의 충격파괴거동에 관한 연구

  • 고성위 (부경대학교) ;
  • 김학돌 (부산기계공고) ;
  • 엄윤성 (부경대학교) ;
  • 최영근 (부경대학교) ;
  • 김형진 (경상대학교 해양산업연구소) ;
  • 김재동 (경상대학교 해양산업연구소) ;
  • 김엄기 (공주대학교)
  • Published : 2002.11.01


In this paper the failure mechanisms and Charpy impact tests of carbon fiber polypropylene composites have been studied in the temperature range -5$0^{\circ}C$ to 6$0^{\circ}C$ and 3 different supported length of specimen (span length). There are significant effects of temperature and span length on impact fracture toughness, which shows a peak at ambient temperature and decrease as temperature is reduced. Fracture toughness shows a maximum at span length s=20mm. Failure mechanisms are characterized based on SEM examination, which is correlated the measured fracture toughness. Mafor mechansms of this composites can be classified as fiber matrix debonding, delamination, fiber pull-out and matrix deformation.



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