کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
768034 | 897274 | 2007 | 18 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Transient thermal stress intensity factors for an internal longitudinal semi-elliptical crack in a thick-walled cylinder Transient thermal stress intensity factors for an internal longitudinal semi-elliptical crack in a thick-walled cylinder](/preview/png/768034.png)
In this paper, the stress intensity factors are derived for an internal semi-elliptical crack in a thick-walled cylinder subjected to transient thermal stresses. First, the problem of transient thermal stresses in a thick-walled cylinder is solved analytically. Thermal and mechanical boundary conditions are assumed to act on the inner and outer surfaces of the cylinder. The quasi-static solution of the thermoelasticity problem is derived analytically using the finite Hankel transform and then, the stress intensity factors are extracted for the deepest point and the surface points of the semi-elliptical crack using the weight function method. The results show to be in accordance with those cited in the literature in the special case of steady-state problem. Using the closed-form relations extracted for the transient thermal stress intensity factors, some conclusive results are drawn.
Journal: Engineering Fracture Mechanics - Volume 74, Issue 16, November 2007, Pages 2585–2602