Embedded Elliptical Crack at a Corner

[+] Author and Article Information
A. S. Kobayashi, A. F. Emery, W. J. Love, A. Antipas

Department of Mechanical Engineering, University of Washington, Seattle, Wash.

J. Pressure Vessel Technol 100(1), 28-33 (Feb 01, 1978) (6 pages) doi:10.1115/1.3454429 History: Received November 15, 1977; Online October 25, 2010


A procedure for estimating the stress intensity factor of an embedded elliptical crack near the corner in a region of high stress concentration such as pressurized or thermally shocked nozzle-to-cylinder junction is discussed. The procedure is then used to analyze two hypothetical embedded circular cracks near the corner of a nozzle-to-cylinder junction where stress distributions in the uncracked junction are known. Also shown are two new stress intensity magnification factors for two embedded elliptical cracks, i.e., b/a = 0.2 and 0.982, close to a free corner, i.e., a/h = b/h = 0.9.

Copyright © 1978 by ASME
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