Foam Mechanics at the Bubble Scale

D. J. Durian
Phys. Rev. Lett. 75, 4780 – Published 25 December 1995
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Abstract

By focusing on entire bubbles rather than films or vertices, a simple model is proposed for the deformation and flow of foam in which dimensionality, polydispersity, and liquid content can easily be varied. Simulation results are presented for the linear elastic properties as a function of bubble volume fraction, showing a melting transition where the static shear modulus vanishes and the relaxation time scale peaks. Results are also presented for shear stress versus strain rate, showing intermittent flow via avalanchelike topological rearrangements and Bingham-plastic behavior.

  • Received 19 July 1995

DOI:https://doi.org/10.1103/PhysRevLett.75.4780

©1995 American Physical Society

Authors & Affiliations

D. J. Durian

  • Department of Physics and Astronomy, University of California, Los Angeles, California 90095-1547

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Issue

Vol. 75, Iss. 26 — 25 December 1995

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