Prof. Dominic Vella (Maths, University of Oxford)

Not so fast: The role of confinement in elastic instability
When May 22, 2017
from 02:00 PM to 03:00 PM
Where LR8
Contact Name
Contact Phone 01865-283446
Add event to calendar vCal

Elastic instability is increasingly viewed as something to be tamed, rather than feared: the regular patterns formed by wrinkles in thin sheets are of use in a number of applications including photonics, while the rapid motion associated with instability has a variety of applications in the natural and man-made world. I will first discuss how ‘confinement' affects the static properties of wrinkle patterns, before going on to discuss how the dynamics of instability can modify this picture. Finally, I will discuss the dynamics of snap-through instabilities (such as the Venus flytrap and children’s hopper popper); this dynamics is very sensitive to the amount of confinement, giving a new tool with which to tune the instability.