Elastic and Elastic-Plastic Buckling of Internally Pressurized 2:1 Ellipsoidal Shells

[+] Author and Article Information
G. D. Galletly

The University of Liverpool, Liverpool, England

J. Pressure Vessel Technol 100(4), 335-343 (Nov 01, 1978) (9 pages) doi:10.1115/1.3454478 History: Received November 21, 1977; Revised May 19, 1978; Online October 25, 2010


Elastic and elastic-plastic buckling pressures for internally-pressurized 2:1 ellipsoidal shells with diameter-thickness ratios in the range 750 < D/t < 1500 are given in the paper. The effects of σyp , E and linear strain hardening on the buckling pressures were investigated and both flow and deformation theories utilized. Some experimental/theoretical correlations are also given. The elastic pcr ’s differ from some which have been published recently and the elastic-plastic pcr ’s are believed to be new. For steel shells, flow and deformation theories sometimes gave contradictory buckling predictions but this was not the case with the aluminum shells which were investigated.

Copyright © 1978 by ASME
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