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SUMMARY:Wrinkle patterns in active viscoelastic thin sheets - Rastko Sknep
 nek\, University of Dundee
DTSTART:20210223T130000Z
DTEND:20210223T140000Z
UID:TALK156334@talks.cam.ac.uk
CONTACT:Camille Scalliet
DESCRIPTION:Zoom link: https://maths-cam-ac-uk.zoom.us/j/94018037756\n\nWe
  show that a viscoelastic thin sheet driven out of equilibrium by active s
 tructural\nremodelling develops a rich variety of shapes as a result of a 
 competition between viscous relaxation\nand activity. In the regime where 
 active processes are faster than viscoelastic relaxation\, wrinkles\nthat 
 are formed due to remodelling are unable to relax to a configuration that 
 minimises the elastic\nenergy and the sheet is inherently out of equilibri
 um. We argue that this non-equilibrium regime is\nof particular interest i
 n biology as it allows the system to access morphologies that are unavaila
 ble if\nrestricted to the adiabatic evolution between configurations that 
 minimise the elastic energy alone.\nHere\, we introduce activity using the
  formalism of an evolving target metric and showcase the diversity\nof wri
 nkling morphologies arising from out of equilibrium dynamics.
LOCATION:via zoom\, meeting ID 940-1803-7756
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