Finding bridges in packings of colloidal spheres

Details Finding bridges in packings of colloidal spheres Finding bridges in packings of colloidal spheres

2010-06-17

arxiv.org/abs/1006.3405v1

Physics

Condensed Matter

Soft Condensed Matter

18 pages, 9 figures

Scientific paper

We identify putative load-bearing structures (bridges) in experimental colloidal systems studied by confocal microscopy. Bridges are co-operative structures that have been used to explain stability and inhomogeneous force transmission in simulated granular packings with a range of densities. We show that bridges similar to those found in granular simulations are present in real experimental colloidal packings. We describe critically the bridge-finding procedure for real experimental data and propose a new criterion-Lowest Mean Squared Separation (LSQS)-for selecting optimum stabilisations.

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