Universality Classes for Force Networks in Jammed Matter

Srdjan Ostojic and Bernard Nienhuis
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Srdjan Ostojic: Universiteit van Amsterdam, Institute for Theoretical Physics
Bernard Nienhuis: Universiteit van Amsterdam, Institute for Theoretical Physics

A chapter in Traffic and Granular Flow’05, 2007, pp 31-40 from Springer

Abstract: Summary We study the geometry of forces in some simple models for granular stackings. The information contained in geometry is complementary to that in the distribution of forces in a single inter-particle contact, which is more widely studied. We present a method which focuses on fractal features of the force network and find good evidence of scale invariance of patterns of large forces. The method enables us to distinguish universality classes characterized by critical exponents. Our approach can be applied to force networks in other athermal jammed systems.

Keywords: Cluster Size; Critical Exponent; Critical Threshold; Universality Class; Large Force (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-47641-2_2

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DOI: 10.1007/978-3-540-47641-2_2

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