Open AccessBuckling of Viscous Filaments of a Fluid under Compression Stresses
Author(s) -
Marie Le Merrer,
David Quéré,
Christophe Clanet
Publication year - 2012
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.109.064502
Subject(s) - buckling , compression (physics) , viscous liquid , mechanics , protein filament , euler's formula , materials science , physics , classical mechanics , composite material , mathematics , mathematical analysis
International audienceWe study the compression of viscous filaments at constant velocity. If slender enough, the filament bends, a viscous analogue of Euler elastic buckling. We measure the characteristic time of this viscous buckling and discuss the link with the elastic critical compression. We show that the analogy only holds in the limit of large capillary numbers. Otherwise capillarity has a stabilizing effect, which suppresses buckling
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