May 27 – 30, 2015
Mariehamn, Åland
Europe/Stockholm timezone

Statistical physics of cellular materials: Mechanics of forms and shapes of bubble and cell assemblies

May 28, 2015, 10:00 AM
Conference room, Arkipelag (Mariehamn, Åland)

Conference room, Arkipelag

Mariehamn, Åland


Francois Graner (Univ. Denis Diderot - Paris 7)


Liquid foams are made of gas bubbles surrounded by water. They are model systems to understand the physics of complex cellular materials (made of cells tiling the space), which behave simultaneously as solids and liquids. We have established statistical tools to link the discrete description of each bubble shape (and shape evolution) with a continuous description which encompasses the shape information useful at the global level. This enabled us to suggest and validate a mechanical model able to predict efficiently, despite two strong non-linearities, how a foam flows in general geometries. Such multi-scale descriptive approach applies to a large class of disordered systems, including aggregates of living cells or developing tissues in the fruit fly.

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