Stress intensity factor of an arbitrarily located circumferential crack in a thin-walled cylinder with axisymmetrically loaded ends

摘要

A simplified method has been developed to approximately calculate the stress intensity factor of a circumferential crack in a thin-walled cylinder with ends subjected to axisymmetric radial and bending l6ads, based on the theory of cylindricalshell and method similar to Rice and Levy's line spring meth6d. The effects of cylinder length and crack location on the value can be evaluated by this method. The numerical results for the problem with the ends subjected to a pair of axisymmetric bending loads showed the necessity of considering the effects of cylinder length and crack location on the stress intensity factor for the problem.