Geometrically nonlinear structures often possess multiple equilibrium configurations. Under extreme conditions of excitation, it is possible for these structures to exhibit oscillations about and between these co-existing configurations. This behavior may have serious implications for fatigue in the context of aircraft surface panels. Snap-through is a name often given to sudden changes in dynamic behavior associated with mechanical instability (buckling). This is an often encountered problem in hypersonic vehicles in which severe thermal loading and acoustic excitation conspire to create an especially hostile environment for structural elements. In this paper, a simple link model is used, experimentally and numerically, to investigate the mechanisms of snap-through buckling from a phenomenological standpoint.
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January 2013
Research-Article
Characterizing Dynamic Transitions Associated With Snap-Through: A Discrete System
R. Wiebe,
R. Wiebe
Graduate Research Assistant
Department of Civil Engineering,
e-mail: rw75@duke.edu
Department of Civil Engineering,
Duke University
,Durham, NC 27708
e-mail: rw75@duke.edu
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L. N. Virgin,
L. N. Virgin
Professor
Department of Mechanical Engineering,
e-mail: l.virgin@duke.edu
Department of Mechanical Engineering,
Duke University
,Durham, NC 27708
e-mail: l.virgin@duke.edu
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S. M. Spottswood,
S. M. Spottswood
Aerospace Engineer
e-mail: Stephen.Spottswood@wpafb.af.mil
e-mail: Stephen.Spottswood@wpafb.af.mil
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T. G. Eason
T. G. Eason
Aerospace Engineer
e-mail: Thomas.Eason@wpafb.af.mil
Structural Mechanics Branch,
AFRL/VASM,
2790 D Street,
e-mail: Thomas.Eason@wpafb.af.mil
Structural Mechanics Branch,
AFRL/VASM,
2790 D Street,
WPAFB, OH 45433-7402
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R. Wiebe
Graduate Research Assistant
Department of Civil Engineering,
e-mail: rw75@duke.edu
Department of Civil Engineering,
Duke University
,Durham, NC 27708
e-mail: rw75@duke.edu
L. N. Virgin
Professor
Department of Mechanical Engineering,
e-mail: l.virgin@duke.edu
Department of Mechanical Engineering,
Duke University
,Durham, NC 27708
e-mail: l.virgin@duke.edu
I. Stanciulescu
S. M. Spottswood
Aerospace Engineer
e-mail: Stephen.Spottswood@wpafb.af.mil
e-mail: Stephen.Spottswood@wpafb.af.mil
T. G. Eason
Aerospace Engineer
e-mail: Thomas.Eason@wpafb.af.mil
Structural Mechanics Branch,
AFRL/VASM,
2790 D Street,
e-mail: Thomas.Eason@wpafb.af.mil
Structural Mechanics Branch,
AFRL/VASM,
2790 D Street,
WPAFB, OH 45433-7402
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received November 21, 2011; final manuscript received February 10, 2012; published online June 14, 2012. Assoc. Editor: Stefano Lenci.
J. Comput. Nonlinear Dynam. Jan 2013, 8(1): 011010 (11 pages)
Published Online: June 14, 2012
Article history
Received:
November 21, 2011
Revision Received:
February 10, 2012
Citation
Wiebe, R., Virgin, L. N., Stanciulescu, I., Spottswood, S. M., and Eason, T. G. (June 14, 2012). "Characterizing Dynamic Transitions Associated With Snap-Through: A Discrete System." ASME. J. Comput. Nonlinear Dynam. January 2013; 8(1): 011010. https://doi.org/10.1115/1.4006201
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