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논문 국내 국내전문학술지(KCI급) 틸팅열차 차체용 탄소섬유직물/에폭시 복합재의 모우드 II 층간파괴인성 평가

연구성과 설명 사진
  • 학술지 구분 국내전문학술지(KCI급)
  • 게재년월 2005-04
  • 저자명 윤성호, 이은동, 허광수, 정종철, 신광복
  • 학술지명 한국철도학회 논문집
  • 발행처명 한국철도학회
  • 발행국가 국내
  • 논문언어 한국어
  • 전체저자수 5
  • 연구분야 공학 > 기계공학

논문 초록 (Abstract)

Mode II interlaminar fracture behaviors of carbon fabric/epoxy composites, which are applicable to tilting traincarbodies, was investigated by the ENF (End notched flexure) test. The specimens were made of CF3327 plain wovenfabric with epoxy and a starter delamination at one end was made by inserting Teflon film with the thickness of 12.5㎛or 25.0㎛. The equation for mode II interlaminar fracture toughness was suggested based on the effective crack lengthfrom the compliance of load-displacement curve. Mode II interlaminar fracture toughness was evaluated for severaltypes of the specimens. Also crack propagating behaviors and fracture surfaces were examined through an opticaltravelling scope and a scanning electron microscope.