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RESEARCH PAPERS

On the Propagation of Bulges and Buckles

[+] Author and Article Information
E. Chater, J. W. Hutchinson

Division of Applied Sciences, Harvard University, Cambridge, Mass. 02138

J. Appl. Mech 51(2), 269-277 (Jun 01, 1984) (9 pages) doi:10.1115/1.3167611 History: Received June 01, 1983; Online July 21, 2009

Abstract

Two examples illustrate the propagation of instability modes under quasi-static, steady-state conditions. The first is the inflation of a long cylindrical party balloon in which a bulge propagates down the length of the balloon. The second is the collapse of a long pipe under external pressure as a result of buckle propagation. In each example, there is a substantial barrier to the initiation of the instability mode. Once initiated, however, the mode will not arrest if the pressure is in excess of the quasi-static, steady-state propagation pressure. It is this critical pressure that is determined in this paper for each of the two examples.

Copyright © 1984 by ASME
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