Maximum Stress Intensity Factor for a Circumferential Crack in a Finite-Length Thin-Walled Cylinder under Transient Radial Temperature Distribution

摘要

Transient stress intensity factor of an axisymmetric circumferential crack in a finite-length, thin-walled and edgesrotation-restrained cylinder, which is suddenly cooled inside from uniform temperature distribution was formulated. Thenthe effects of various structural parameters and heat transfer conditions on the value were studied. The maximum transientstress intensity factor in a thermal cycle showed a tendency to decrease monotonously when crack length was varied tobecome longer than a specific value. Furthermore, the maximum transient stress intensity factor for an infinite cylinderlength was smaller than that for a specific length when cylinder length was varied.