Paper number 347

MICROBOND TEST FOR THE FIBER/MATRIX INTERFACIAL SHEARING STRENGTH

Atsushi Wada^* and Hiroshi Fukuda^**

Department of Materials Science and Technology Science University of Tokyo Yamazaki, Noda, Chiba 278-8510, Japan
*Graduate student,
**Professor

Summary

Fiber reinforced plastics are essentially heterogeneous materials where plastic matrix is reinforced by fibers. Therefore, it is important to know the properties of fiber/matrix interaction in addition to the properties of fiber and matrix themselves. To measure the fiber/ matrix adhesive strength, various kinds of tests such as fiber pull-out, fragmentation, microbond, etc. have so far been tried. But the correlation of the strength among these test methods is not necessarily clear although the argument of Ref.[1] has a point. In the present study, we tried microbond tests with various test conditions to get reliable interfacial shearing strength.

Keywords

microbond, fiber/matrix interface, shearing strength, meniscus, debonding, carbon monofilament, epoxy resin.