arxiv: 1204.5110 · v2 · pith:IGHIBYJOnew · submitted 2012-04-23 · ❄️ cond-mat.soft

Affine and non-affine motions in sheared polydisperse jammed emulsions

J. Clara-Rahola , T. A. Brzinski , D. Semwogerere , K. Feitosa , J. C. Crocker , J. Sato , V. Breedveld , Eric R. Weeks This is my paper

classification ❄️ cond-mat.soft

keywords dropletdropletsmotionmotionsaffineemulsionslargerlength

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We study dense and highly polydisperse emulsions at droplet volume fractions \phi >= 0.65. We apply oscillatory shear and observe droplet motion using confocal microscopy. The presence of droplets with sizes several times the mean size dramatically changes the motion of smaller droplets. Both affine and nonaffine droplet motions are observed, with the more nonaffine motion exhibited by the smaller droplets which are pushed around by the larger droplets. Droplet motions are correlated over length scales from one to four times the mean droplet diameter, with larger length scales corresponding to higher strain amplitudes (up to strains of about 6%).

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Affine and non-affine motions in sheared polydisperse jammed emulsions

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