농도법에 의한 GFRP 복합재료의 섬유배향각 분포측정

• 김혁 (조선대학교 대학원 정밀기계공학과) ;
• 안종윤 (조선대학교 산업대학원 산업기계전공) ;
• 이동기 (조선대학교 정밀기계공학과, 수송기계부품 공장자동화 연구센터) ;
• 한길영 (조선대학교 선박해양공학과, 수송기계부품 공장자동화 연구센터) ;
• 김이곤 (국민대학교 기계설계학과, 정밀정형 및 금형가공 연구센터)
• Published : 1996.06.01

Abstract

In order to examine the accuracy of the intensity method, the fiber orientation-angle distribution of fiber-reinforced polymeric composites is measured using image processing. The fiber orientation function is calculated from the fiber orientation measured by the soft X-ray photograph. Theoretical and experimental results of fiber orientation function are compared for the composites with different fiber contents and fiber orientations. The intensity method is used for the experimental investigation and the measured fiber orientation function is compared to the calculated one. The relations between the measured and the simulated fiber orientation functions $J{\small{M}}$ and $J{\small{S}}$ respectively are identified. For the fiber length of 1.000mm and 2.000mm, it shows that $J{\small{M}}=0.83J{\small{M}}$. However. in general. the value of $J{\small{M}}$ decreases as the fiber length increases. For GFRP composites the relations between $J{\small{M}}$ and theoretical value J show that $J{\small{M}}$=0.73J for short fiber and $J{\small{M}}$=0.81J for long fiber.

Acknowledgement

Supported by : 조선대학교