Force chains in monodisperse spherical particle assemblies: three-dimensional measurements using neutrons

Title: Force chains in monodisperse spherical particle assemblies: three-dimensional measurements using neutrons
Creator: Wensrich, C. M.; Kisi, E. H.; Luzin, V.; Garbe, U.; Kirstein, O.; Smith, A. L.; Zhang, J. F.
Relation: ARC.DP130104290
Relation: Physical Review E Vol. 90, Issue 4
Publisher Link: http://dx.doi.org/10.1103/PhysRevE.90.042203
Publisher: American Physical Society
Resource Type: journal article
Date: 2014
Description: The full triaxial stress state within individual particles in a monodisperse spherical granular assembly has been measured. This was made possible by neutron imaging and computed tomography combined with neutron diffraction strain measurement techniques and associated stress reconstruction. The assembly in question consists of 549 precision steel ball bearings under an applied axial load of 85 MPa in a cylindrical die. Clear evidence of force chains was observed in terms of both the shape of the probability distribution function for normal stresses and the network formed by highly loaded particles. An extensive analysis of the source and magnitude of uncertainty in these measurements is also presented.
Subject: neutron imaging; force chains; measuring
Identifier: http://hdl.handle.net/1959.13/1301112
Identifier: uon:20227
Identifier: ISSN:1539-3755
Language: eng
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