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Local Origin of Global Contact Numbers in Frictional Ellipsoid Packings

Schaller, F.M.; Neudecker, Max; Saadatfar, Mohammad; Delaney, Gary W.; Schröder-Turk, Gerd E.; Schröter, Matthias


In particulate soft matter systems the average number of contacts Z of a particle is an important predictor of the mechanical properties of the system. Using x-ray tomography, we analyze packings of frictional, oblate ellipsoids of various aspect ratios α, prepared at different global volume fractions φg. We find that Z is a monotonically increasing function of φg for all α. We demonstrate that this functional dependence can be explained by a local analysis where each particle is described by...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.114.158001


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