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Pré-Publication, Document De Travail Année : 2013

Solid drops: Large capillary deformations of immersed elastic rods

Serge Mora
Corrado Maurini
Jean Marc Fromental
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  • PersonId : 872624
Basile Audoly

Résumé

Under the effect of surface tension a blob of liquid adopts a spherical shape when immersed in another fluid. We demonstrate experimentally that soft, centimeter-size elastic solids can exhibit a similar behavior: when immersed into a liquid, a gel having a low elastic modulus undergoes large, reversible deformations. We analyze three fundamental types of deformations of a slender elastic solid driven by surface stress, depending on the shape of its cross-section: a circular elastic cylinder shortens in the longitudinal direction and stretches transversally; the sharp edges of a square based prism get rounded off as its cross-sections tend to become circular; a slender, triangular based prism bends. These experimental results are confronted to analysis and non-linear simulations of neo-Hookean solids deformed by surface tension, and are found in good agreement.
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Dates et versions

hal-00842852 , version 1 (11-07-2013)
hal-00842852 , version 2 (23-08-2013)

Identifiants

  • HAL Id : hal-00842852 , version 1

Citer

Serge Mora, Corrado Maurini, Ty Phou, Jean Marc Fromental, Basile Audoly, et al.. Solid drops: Large capillary deformations of immersed elastic rods. 2013. ⟨hal-00842852v1⟩
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