抄録
An alternating method is developed for the interaction analysis of arbitrary distributed multiple elliptical cracks. The completely analytical solutions (VNA solutions) for a single elliptical crack in an infinite solid, subject to arbitrary crack-face traction, are implemented in the present alternating method, together with the coordinate transformations for stress tensor. Since only the VNA solutions of individual cracks are used as a basic solution of the Schwartz-Neumann alternating technique, the present method leads to a highly accurate and efficient numerical tool for routine evaluation of the stress intensity factors for interacting multiple cracks. Numerical demonstrations are also given for interaction problems of several types.
