Shahani - Associate professor Faculty of Mechanical Engineering, K.N.T. University of Technology
Nabavi - Ph.D. student and also member of board of education of Applied Science and Research Association

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.

Steady State thermoelasticity problem - Stress Intensity Factor - Semi-Elliptical Crack -- Weight Function