Stress-Intensity Factors for an Internal Semi-Elliptical Surface Crack in Cylindrical Pressure Vessels

[+] Author and Article Information
D.-H. Chen

Kyushu Institute of Technology, 680-4 Ohaza Kawatsu, Ihzuka, 820 Japan

H. Nisitani

Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812 Japan

K. Mori

Kurume National College of Technology, 1232 Komorino, Kurume, 830 Japan

J. Pressure Vessel Technol 117(3), 213-221 (Aug 01, 1995) (9 pages) doi:10.1115/1.2842114 History: Received March 22, 1991; Revised January 04, 1995; Online February 11, 2008


In this paper, the surface crack problem in a cylinder subjected to internal pressure is solved. The analysis is based on the body force method, but it is different from the conventional body force method in the following point. That is, the body forces to be distributed continuously on the assumed boundaries in an infinite body are approximated by some discrete point forces acting on the outside of the assumed boundaries. By using this method combined with the resultant force boundary conditions, solutions with high accuracy are obtained.

Copyright © 1995 by The American Society of Mechanical Engineers
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