Rotations in shear bands and polydisperse packings

H.J. Herrmann, J.A. Astrøm and R. Mahmoodi Baram

Physica A: Statistical Mechanics and its Applications, 2004, vol. 344, issue 3, 516-522

Abstract: High resistance concrete or hard ceramics needs extremely dense granular packings which can only be realised when the size distribution of grains follows a powerlaw. We discuss the perfectly dense limit, namely Apollonian packings in three dimensions and show in particular the existence of space filling bearings rotating without slip and without torsion. When a dense packing like tectonic gouge is deformed, it glides internally on shear bands. The existence of rotations in shearbands is evidenced by molecular dynamics simulations of disks.

Keywords: Granular packing; Sphere packing; Shear band; Bearing (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:344:y:2004:i:3:p:516-522

DOI: 10.1016/j.physa.2004.06.023

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