Abstract
This paper is concerned with tensile impact response of an infinite body with one or two annular cracks. The method of analysis is the body force method extended to elastodynamic problems, which was developed previously by the author. In this method, the solutions are obtained by superposing the elastodynamic stress fields of point force to satisfy the given boundary conditions. The dynamic stress intensity factors are obtained numerically, and the effects of the interactions between two cracks on the dynamic stress intensity factor are shown graphically.
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