On capillary bridges in wet granular materials

Mika M. Kohonen*, Dimitrios Geromichalos, Mario Scheel, Christof Schier, Stephan Herminghaus

*Corresponding author for this work

    Research output: Contribution to journalConference articlepeer-review

    106 Citations (Scopus)

    Abstract

    The properties of wet granular materials are significantly influenced by the presence of microscopic liquid (capillary) bridges between the constituent granules. However, despite the progress which has been made in recent years the dependence of the mechanical properties of such materials on the amount and type of liquid present is still not completely understood. At a very basic level, a better understanding of the distribution of liquid between particle contacts and particle surfaces is required. Here we describe some of our observations on liquid bridge coordination numbers and liquid bridge volumes in model granular materials consisting of glass beads. We also describe experiments on the dynamic deformation of a wet granular material, which reveal a type of shear-thinning behavior that we attribute to the shear-rate dependence of liquid bridge volumes.

    Original languageEnglish
    Pages (from-to)7-15
    Number of pages9
    JournalPhysica A: Statistical Mechanics and its Applications
    Volume339
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Aug 2004
    EventProceedings of the International Conference New Materials - Canberra, Vic., Australia
    Duration: 3 Nov 20037 Nov 2003

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