接着継手の特異応力場の緩和に関する検討

抄録

Fracture of dissimilar materials is generally caused in the vicinity of the interface end. This is because the singular stress is induced at the interface end. In this study, in order to improve the adhesive strength, the adhesive bonded round bar with circumferential notch near the interface is considered. The small crack at the interface are strongly controlled by the singular stress field at the interface end without the crack. Then, the intensity factor of the interface edge crack. The effect of the position of circumferential notch on the stress intensity factor of the interface crack is analyzed. As a result, it is found that the singular stress at the interface end can be reduced significantly when the circumferential notch is close to the interface of the bonded bar.