Some surprises in elastic snap-through

Dominic VELLA

University of Oxford


Elastic snap-through is familiar from everyday life; whether it’s the rapid inversion of an umbrella or the pop of a hair clip, we are familiar with the idea that some elastic objects have two equilibrium states and can be forced to ‘snap’ between them with a suitable load. These examples generally suggest that the motion occurs quickly, but trying to estimate this speed brings some surprises: if anything, the motion should happen *faster* than is typically observed. We show that this ’slow’ snap-through occurs even without any viscous dissipation and gives a new route to control the state and behaviour of an elastic system using the rate of loading.


                                                                                                                                                                                                                                               

IMAGES

Partial Coalescence of Soap Bubbles (plus de détails...)

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CONFÉRENCES

Bifurcations and Instabilities in Fluid Dynamics, Edinburgh, Scotland, 24 Juin 2024

Physics of Wave Turbulence and beyond: Celebrating the 60th birthday of Sergey Nazarenko., Les Houches, 2 Septembre 2024

19e Journées de l'Hydrodynamique, Ecole Centrale de Nantes, 26 Novembre 2024

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