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À propos de : Correlation between Voronoi volumes in disc packings        

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  • Correlation between Voronoi volumes in disc packings
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  • We measure the two-point correlation of free Voronoi volumes in binary disc packings, where the packing fraction φ avg ranges from 0.8175 to 0.8380. We observe short-ranged correlations over the whole range of φ avg and anticorrelations for φ avg> 0.8277. The spatial extent of the anti-correlation increases with φ avg while the position of the maximum of the anticorrelation and the extent of the positive correlation shrink with φ avg. We conjecture that the onset of anticorrelation corresponds to dilatancy onset in this system.
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  • epl14239
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  • © EPLA, 2012
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