The elastic T-stress is a parameter used to define the level of constraint at a crack tip. It is important to provide T-stress solutions for practical geometries in order to apply the constraint-based fracture mechanics methodology. In the present paper, T-stress solutions are provided for circumferential through-wall cracks in thin-walled cylinders. Cylinders with a circumferential through-wall crack were analyzed using the finite element method. Three cylinder geometries were considered; defined by the pipe radius (R) to wall thickness (t) ratios: R/t = 5, 10, and 20. The T-stress was obtained at eight crack lengths (θ/π = 0.0625, 0.1250, 0.1875, 0.2500, 0.3125, 0.3750, 0.4375, and 0.5000) for remote tension and remote bending loads. These results are suitable for constraint-based fracture analysis for cylinders with circumferential cracks. Copyright
2006 6th International Pipeline Conference, IPC 2006
Department of Mechanical and Aerospace Engineering

Lewis, T. (Timothy), Wang, X, & Bell, R. (Robert). (2007). Finite element analyses of circumferential cracks in thin-walled cylinders: T-stress solutions. In Proceedings of the Biennial International Pipeline Conference, IPC (pp. 831–837). doi:10.1115/IPC2006-10539