Abstract
In this work, the stress intensity factor of inclined edge cracks introduced on the inner surface of a cylindrical pressure vessel is analyzed through numerical simulation. The fracture analysis was performed using a two-dimensional axisymmetric finite element model. The results reveal that, as the crack inclination increases beyond 30o, mode II loading becomes dominant. As the crack length increases, mode II loading acts in a profound manner in the component. In addition, the stress intensity factor of inclined crack was examined in the presence of multiple cracks. It was found that after a certain spacing between the inclined and neighboring crack, the ratio of mode I to mode II remains constant due to the non-interaction of stress fields around the crack.
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