Original Article
  • Interfacial shear strength test by a hemi-spherical microbond specimen of carbon fiber and epoxy resin
  • Joo-Eon Park*, Jae-Young Jang*, Soo-Keun Kang*, Nak-Sam Choi**+
  • 탄소 섬유 / 에폭시의 반구형 미소접합 시험편에 대한 계면 강도 평가
  • 박주언 (한양대학교 기계공학과 대학원 ), 장재영 (한양대학교 기계공학과 대학원 ), 강수근 (한양대학교 기계공학과 대학원 ), 최낙삼(교신저자(E-mail:nschoi@hanyang.ac.kr), 한양대학교 기계공학과 )
Interfacial shear strength between epoxy and carbon fiber was analyzed utilizing a hemi-spherical microbond specimens adhered onto single carbon fiber. The hemi-spherical microbond specimen showed high regression coefficient and small standard deviation in the measurement of interfacial strength as compared with a droplet and an inverse hemi-spherical one. This seemed to be caused by the reduced meniscus effects and the reduced stress concentration in the region contacting with a pin-hole loading device. Finite element analysis showed that the stress distributions along the fiber/matrix interface in the hemi-spherical specimen had a stable shear stress distribution along the interface without any stress mode change. The experimental data was also different according to the kinds of loading device such as the microvise-tip and the pin-holed plate. Key Words: Interfacial shear strength(계면 전단강도

Keywords: Interfacial shear strength, Hemispherical microbond specimen, Droplet microbond specimen, Inverse hemi-spherical specimen ,Single carbon fiber/epoxy

Keywords: 계면 전단강도, 반구형 미소접합 시험편, 드랍레트 미소접합 시험편, 역 반구형 미소접합 시험편, 탄소섬유/에폭시

This Article

  • 2008; 21(4): 15-21

    Published on Aug 31, 2008