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http://dx.doi.org/10.7234/kscm.2008.21.4.015

Interfacial shear strength test by a hemi-spherical microbond specimen of carbon fiber and epoxy resin  

Park, Joo-Eon (한양대학교 기계공학과 대학원)
Gu, Ja-Uk (한양대학교 기계공학과 대학원)
Kang, Soo-Keun (한양대학교 기계공학과 대학원)
Choi, Nak-Sam (한양대학교 기계공학과)
Publication Information
Composites Research / v.21, no.4, 2008 , pp. 15-21 More about this Journal
Abstract
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.
Keywords
Interfacial shear strength; Hemispherical microbond specimen; Droplet microbond specimen; Inverse hemi-spherical specimen; Single carbon fiber/epoxy;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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