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Title: Free volume under shear
Authors: Maiti, Moumita
Vinutha, H. A.
Sastry, Srikanth
Heussinger, Claus
Keywords: Physical Chemistry
Atomic, Molecular & Chemical Physics
Polydisperse Sphere Packings
Statistical Geometry
Particle Packings
Amorphous Solids
Void Space
Issue Date: 2015
Publisher: American Institute of Physics
Citation: Journal of Chemical Physics
Maiti, M.; Vinutha, H. A.; Sastry, S.; Heussinger, C., Free volume under shear. Journal of Chemical Physics 2015, 143 (14), 5.
Abstract: Using an athermal quasistatic simulation protocol, we study the distribution of free volumes in sheared hard-particle packings close to, but below, the random-close packing threshold. We show that under shear, and independent of volume fraction, the free volumes develop features similar to close-packed systems - particles self-organize in a manner as to mimick the isotropically jammed state. We compare athermally sheared packings with thermalized packings and show that thermalization leads to an erasure of these structural features. The temporal evolution in particular the opening-up and the closing of free-volume patches is associated with the single-particle dynamics, showing a crossover from ballistic to diffusive behavior. (C) 2015 AIP Publishing LLC.
Description: Restricted access
ISSN: 0021-9606
Appears in Collections:Research Articles (Srikanth Sastry)

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