抄録
A method for evaluating stress distribution along crack under mixed-mode condition (Modes I and II) and stress intensity factor is proposed through measurement of crack opening and sliding displacement distribution along the crack. Based on the present method, residual stress distribution along the fatigue crack and stress intensity factor for Mode I are experimentally evaluated from the crack opening displacement distribution measured along the crack in a finite plate specimen. The evaluated stress distribution along the crack is in close agreement with the residual stress distribution measured by an X-ray. The stress intensity factors obtained by the present method are influenced both by the residual stress and by finite width of the specimen.
