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SUMMARY:Extension of a suspended soap film: a two-step process - Isabelle 
 Cantat\, IPR\, Universite de Rennes 1
DTSTART:20140228T160000Z
DTEND:20140228T170000Z
UID:TALK50141@talks.cam.ac.uk
CONTACT:Dr C. P.  Caulfield
DESCRIPTION:Liquid foams are widely used in industry for their high effect
 ive viscosity\, whose local origin is still unclear. We present new result
 s on the extension of a suspended soap film\, in a configuration mimicking
  the elementary deformation occurring during foam shearing. We evidence a 
 surprising two-step evolution: the film first extends homogeneously\, then
  its extension stops and a new thicker film  is extracted from the meniscu
 s.\nWe predict this complex behavior using a model based on Frankel's theo
 ry\, and on interface rigidification induced by confinement.\n
LOCATION:MR2\, Centre for Mathematical Sciences\, Wilberforce Road\, Cambr
 idge
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