抄録
In this study, the interfacial crack kinking behavior of bimaterial specimens are investigated. The bimaterial specimen consist of epoxy and aluminum. To produce various mixed-mode states, the loading angle is changed systematically from 0° to 180°. The fracture mechanics parameters for interfacial crack in bimaterial specimens are evaluated by the aid of finite element analyses. All kinked fractures occurred at loading angle ≧120°. Fractures energy supply for interfacial crack is discussed by the measurements of separated J integral. The component separation method is used to estimate stress intensity factor for interfacial crack. In this paper, the stress intensity factors at the characteristic length 1=2a are calculated.
