Boundary structure in dense random packing of monosize spherical particles

Title: Boundary structure in dense random packing of monosize spherical particles
Creator: Wensrich, C. M.
Relation: Powder Technology Vol. 219, p. 118-127
Publisher Link: http://dx.doi.org/10.1016/j.powtec.2011.12.026
Publisher: Elsevier
Resource Type: journal article
Date: 2012
Description: Structure within dense random packed monodisperse spheres is analysed with the aid of CT scans and Discrete Element Models (DEM). CT scans were taken of four physical packings of 6mm glass beads in various diameter cylindrical containers. Using a technique based on optimisation, spherical particles were fitted to these CT scans and the resulting assemblies were examined in terms of the structures present. These assemblies were also compared to the results of DEM simulations for the purposes of validation. A great deal of structure was found in these systems close to the boundaries. In terms of the radial distribution function, this structure closely resembled a simple two-dimensional ordered packing. It was concluded that this simple structure persisted some distance into the assemblies.
Subject: dense random packing; split second peak; radial distribution function; particulate assemblies
Identifier: http://hdl.handle.net/1959.13/1318148
Identifier: uon:23571
Identifier: ISSN:0032-5910
Language: eng
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