Influence of the Yield Function Nonlinearity and Temperature in Dynamic Buckling of Viscoplastic Cylindrical Shells

[+] Author and Article Information
W. Wojewódzki, R. Bukowski

Institute of Structural Mechanics, Warsaw Technical University, Al. Armii Ludowej 16, PL-00-637 Warsaw, Poland

J. Appl. Mech 51(1), 114-120 (Mar 01, 1984) (7 pages) doi:10.1115/1.3167553 History: Received September 01, 1982; Revised May 01, 1983; Online July 21, 2009


A viscoplastic theory of dynamic buckling is developed for cylindrical shells subjected to uniform radially inward impulses. The influence of the yield function nonlinearity and elevated temperature on the magnitude of displacements, buckling mode, and threshold impulse is investigated. Asymmetrical and axisymmetrical modes of buckling are considered. The asymmetrical mode is proved to exist. The obtained theoretical results are compared with existing experiments.

Copyright © 1984 by ASME
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