Wrinkle patterns in active viscoelastic thin sheets

Add to your list(s) Download to your calendar using vCal

• Rastko Sknepnek, University of Dundee
• Tuesday 23 February 2021, 13:00-14:00
• via zoom, meeting ID 940-1803-7756.

If you have a question about this talk, please contact Camille Scalliet.

Zoom link: https://maths-cam-ac-uk.zoom.us/j/94018037756

We show that a viscoelastic thin sheet driven out of equilibrium by active structural remodelling develops a rich variety of shapes as a result of a competition between viscous relaxation and activity. In the regime where active processes are faster than viscoelastic relaxation, wrinkles that are formed due to remodelling are unable to relax to a configuration that minimises the elastic energy and the sheet is inherently out of equilibrium. We argue that this non-equilibrium regime is of particular interest in biology as it allows the system to access morphologies that are unavailable if restricted to the adiabatic evolution between configurations that minimise the elastic energy alone. Here, we introduce activity using the formalism of an evolving target metric and showcase the diversity of wrinkling morphologies arising from out of equilibrium dynamics.

This talk is part of the DAMTP Statistical Physics and Soft Matter Seminar series.

This talk is included in these lists:

• All CMS events
• DAMTP Statistical Physics and Soft Matter Seminar
• Soft Matter
• bld31
• via zoom, meeting ID 940-1803-7756

Note that ex-directory lists are not shown.