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RESEARCH PAPERS

Residual Stress Redistribution Caused by Notches and Cracks in a Partially Autofrettaged Tube

[+] Author and Article Information
S. L. Pu, M. A. Hussain

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

J. Pressure Vessel Technol 103(4), 302-306 (Nov 01, 1981) (5 pages) doi:10.1115/1.3263406 History: Received October 10, 1980; Revised April 21, 1981; Online November 05, 2009

Abstract

A simple method is provided for the computation of the redistribution of residual stresses and the stress intensity factors due to the introduction of notches and cracks in a partially autofrettaged tube. Numerical results of several crack and notch problems are obtained by the method of thermal simulation. These results are shown to be in excellent agreement with those obtained from the classical method of superposition. The new method based on thermal simulation is easier to apply and it avoids the alternate method of superposition requiring cumbersome distributed crack face loadings for each crack configuration.

Copyright © 1981 by ASME
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