The strength and damage for notched FRP plates made by injection molding (IM specimen) and that of machining (M specimen) have been investigated. This is accomplished by obtaining experimental data of the static tension and fatigue tests on the notched plate of short glass fiber-reinforced polycarbonate. To evaluate the damage near the notch root, we measured the luminance distributions by means of the luminance-measuring system with a CCD camera. On the basis of the idea of the stress concentration and the similarity of stress distribution near the notch root, the experimental results of IM specimen were compared to that of M specimen.
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