Tracing Secondary Equilibrium Paths of Elastic Framed Structures
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Engineering Mechanics
Volume 125, Issue 12
Abstract
For a framed structure that is subjected to bifurcation buckling, it may be useful to trace its secondary equilibrium path to gauge its sensitivity to geometric imperfections or to study the nature of load shedding from the buckled structure. For this purpose, a substantial number of branch-switching algorithms for tracing the secondary equilibrium paths of elastic structures have been proposed in the literature. However, virtually all of the published algorithms have heavy mathematical overtones that are not readily appreciated by practicing structural engineers. This paper presents a simple and efficient branch-switching algorithm that is explained in more easily understood terms. The proposed algorithm is demonstrated through numerical examples to be effective in tracing the secondary equilibrium paths of various framed structures with different types of postbuckling behaviors.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 125 • Issue 12 • December 1999
Pages: 1358 - 1364
History
Received: Feb 24, 1999
Published online: Dec 1, 1999
Published in print: Dec 1999
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