Measuring the distribution of interdroplet forces in a compressed emulsion system

Jasna Brujić, Sam F. Edwards, Ian Hopkinson, Hernán A. Makse

    Research output: Contribution to journalArticle

    Abstract

    The micromechanics of a variety of systems experiencing a structural arrest due to their high density could be unified by a thermodynamic framework governing their approach to 'jammed' configurations. The mechanism of supporting an applied stress through the microstructure of these highly packed materials is important in inferring the features responsible for the inhomo- geneous stress transmission and testing the universality for all jammed matter. In this paper, we present a novel method for measuring the force distribution within the bulk of a compressed emulsion system using confocal microscopy and explain our results with a simple theoretical model and computer simulations. We obtain an exponential distribution at large forces and a small peak at small forces, in agreement with previous experimental and simulation data for other particulate systems.

    Original languageEnglish (US)
    Pages (from-to)201-212
    Number of pages12
    JournalPhysica A: Statistical Mechanics and its Applications
    Volume327
    Issue number3-4
    DOIs
    StatePublished - Sep 15 2003

    Keywords

    • Compressed emulsions
    • Force distributions
    • Jamming

    ASJC Scopus subject areas

    • Statistics and Probability
    • Condensed Matter Physics

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