Finding bridges in packings of colloidal spheres

Matthew C. Jenkins, Mark D. Haw, Gary C. Barker, Wilson C. K. Poon, Stefan U. Egelhaaf

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)684-690
Number of pages7
JournalSoft Matter
Volume7
Issue number2
DOIs
Publication statusPublished - 2011

Keywords

  • COMPRESSED EMULSION SYSTEM
  • DYNAMIC-LIGHT-SCATTERING
  • DIGITAL VIDEO MICROSCOPY
  • COUPLING-THEORY ANALYSIS
  • GLASS-TRANSITION
  • AMORPHOUS SOLIDS
  • HARD-SPHERES
  • PARTICLES
  • RIGIDITY
  • LIQUIDS

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