抄録
The finite three-point bending of a fiber-reinforced straight beam with a central crack on the beam bottom is analysed in the framework of the theory of ideal fiber-reinforced composite materials. The beam is reinforced in its axial direction. It is simply supported by fixed roller fulcrums ; such a supporting method has been chosen because of its feasibility for three-point bending tests. The results for a linear elastic response are shown in figures with a major emphasis on the crack tip opening angle, the singular stress intensity at the crack tip, and the debonding stresses.
