Initiation and propagation of cracks in rotating disks may cause catastrophic failures. Therefore, determination of fracture parameters under different working conditions is an essential issue. In this paper, a comprehensive study of stress intensity factors(SIFs) in rotating disks containing three-dimensional(3D) semi-elliptical cracks subjected to different working conditions is carried out. The effects of mechanical properties, rotational velocity, and orientation of cracks on SIFs in rotating disks under centrifugal loading are investigated. Also, the effects of using composite patches to reduce SIFs in rotating disks are studied. The effects of patching design variables such as mechanical properties, thickness, and ply angle are investigated separately. The modeling and analytical procedure are verified in comparison with previously reported results in the literature.
展开▼
