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RESEARCH PAPERS

Stress Intensity Factors for Radial Cracks in a Pre-Stressed, Thick-Walled Cylinder of Strain-Hardening Materials

[+] Author and Article Information
S. L. Pu, P. C. T. Chen

U.S. Army Armament Research and Development Command, Large Caliber Weapon Systems Laboratory, Benet Weapons Laboratory, Watervliet, N.Y. 12189

J. Pressure Vessel Technol 105(2), 117-123 (May 01, 1983) (7 pages) doi:10.1115/1.3264252 History: Received August 25, 1982; Revised February 11, 1983; Online November 05, 2009

Abstract

A simple method which combines the weight function technique and finite element results is used to obtain mode I stress intensity factor solutions for radially cracked cylinders subjected to a high internal pressure. The method is especially effective for cylinders having residual stresses due to a manufacturing pre-stress process to increase the maximum pressure the cylinder can contain and to improve the cylinder’s useful life against fatigue and fracture. The method is quite general for various assumptions involving the plastic stress-strain relations, the yield condition, the strain-hardening, and the compressibility of the cylinder material.

Copyright © 1983 by ASME
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