Calculation of Strees Intensity Factors for a Semi-Elliptical crack in a Thick-Walled Cylinder Subjected to Thermal Loading

In this paper the steady state thermoelasticity problem in a thick-walled cylinder containing an internal axial semi-elliptical crack is solved analytically. Thermal and mechanical boundary conditions are prescribed on the inner and outer surface surfaces of the cylinder. The steady state solution of the thermoelasticity problem is derived analytically and then, the stress intensity factors are extracted for the semi-elliptical crack using the weight function method. The results show to be in accordance with that cited in the literature in the special cases.