Finite Element Analysis of a Rotating Disc with a Corner Crack Originating at the Bolt Holes

회전체 원판의 볼트구멍에 존재하는 모서리균열의 유한요소해석

The objective of this paper is to obtain stress intensity factor solutions for a corner crack originating at bolt holes in a rotating disc. Initially two-dimensional finite element analyses of a rotating disc with bolt holes are performed to determine the maximum stress region. Subsequently three-dimensional finite element analyses of a rotating disc with a corner crack originating at the bolt holes are performed with a variety of crack geometries. According to the numerical results, the maximum stress intensity factor, with an increase in crack depth ratio, was observed at the surface of the plate due to the interference effect of corner crack and disc bore.