Lower-Bound Assessment of Creep Buckling Strength

[+] Author and Article Information
D. L. Marriot

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, Ill. 61801

J. Pressure Vessel Technol 105(3), 216-221 (Aug 01, 1983) (6 pages) doi:10.1115/1.3264267 History: Received May 17, 1983; Online November 05, 2009


A method is developed for predicting the creep buckling behavior of complex pressurized components from the results of ambient, short-term buckling tests on geometrically similar components. The method has been tested against experimental data on boss-loaded spherical shells and shows reasonable accuracy of prediction of the buckling load after a given period of time. Application to the design analysis of a component for a boiler is described. An analysis of the approximations made in developing the method is included. It is shown that a lower bound on buckling strength at a given time is obtained.

Copyright © 1983 by ASME
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