Divergence and Flutter Instabilities of Some Constrained Two-Degree-of-Freedom Systems
Publication: Journal of Engineering Mechanics
Volume 140, Issue 1
Abstract
It is now well known that a variety of instability modes can appear before the conventional plastic limit condition is met. In this note, both flutter and divergence instability modes are investigated. First, the criterion for detecting their occurrence is established, and the case of kinematically constrained discrete systems is investigated. Based on an illustrative example, the competition between the occurrences of each of these instability modes is analyzed, showing that the prevalence of a given mode is strongly related to both the loading conditions and the stiffness properties of the material system at hand.
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Acknowledgments
The authors express their gratitude to the French Research Network MeGe (Multiscale and multi-physics couplings in geo-environmental mechanics, GDR CNRS 3176, 2008-2011) for having supported this work.
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Published In
Journal of Engineering Mechanics
Volume 140 • Issue 1 • January 2014
Pages: 47 - 52
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 22, 2012
Accepted: Mar 20, 2013
Published online: Mar 22, 2013
Published ahead of production: Apr 1, 2013
Published in print: Jan 1, 2014
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