Abstract
In this paper, the shear deformation behavior in the interface between the plastic and the fiber is described. we tried two load type test by using the boron fiber embedded in a plastic resin which had diameter 14mm. One is the pull out test method and another is the push out one. The main conclusion obtained by the present study is shown as follows. The relationship between the shearing force and the shearing deformation has the velocity dependence. The separate fracture of the interface begins by the maximum shearing load. The difference of the test method doesn't influence the maximum shearing force. It was found that the main bond strength between the fiber and the plastic resin was the dynamic friction force.
