Abstract
We re-analyse experiments on a foam sheared in a two-dimensional Couette geometry. We characterize the bubble deformation by a texture tensor. Our measurements are local in time: they show two regimes, one transient and one stationary. They provide both the average and fluctuations of the anisotropy. Measurements are also local in space: they show that both the deformation and the elastic contribution to the stress field do not localize, varying smoothly across the shear gap. We can thus describe the foam as a continuous medium with elastic properties.
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