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Quantifying interparticle forces and heterogeneity in 3D granular materials

Hurley, R. C. and Hall, S. A. and Andrade, J. E. and Wright, J. (2016) Quantifying interparticle forces and heterogeneity in 3D granular materials. Physical Review Letters, 117 (9). Art. No. 098005. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:20160719-231519023

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Abstract

Extensive theoretical, numerical, and experimental research has examined interparticle forces in granular materials. Interparticle forces are intimately linked to mechanical properties and are known to self-organize into heterogeneous structures, or force chains, under external load. Despite progress in understanding the statistics and spatial distribution of interparticle forces in recent decades, a systematic method for measuring forces in opaque, 3D, frictional, stiff granular media has yet to emerge. In this Letter, we present results from an experiment that combines 3D X-ray diffraction, X-ray tomography, and a numerical force inference technique to quantify interparticle forces and their heterogeneity in a granular material composed of quartz grains undergoing a 1D compression cycle. Forces exhibit an exponential decay above the mean and partition into strong and weak networks. We find a surprising inverse relationship between macroscopic load and the heterogeneity of interparticle forces, despite the clear emergence of two force chains that span the system.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.117.098005DOIArticle
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.098005PublisherArticle
http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.117.098005Featured InPhysics : Synopsis
Additional Information:© 2016 American Physical Society. (Received 11 March 2016; published 24 August 2016) The authors acknowledge the ESRF for synchrotron beam time for proposal ma1913. R. C. H. and J. E. A. acknowledge support from the U.S. Air Force Office of Scientific Research Grant No. FA9550-12-1-0091 and the U.S. Defense Threat Reduction Agency Grant No. HDTRA1-12-1-0041. S. A. H. acknowledges support from a Marie Curie FP7 integration grant within the 7th European Union Framework Programme. Part of this work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Award No. DE-AC52-07NA27344.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0091
Defense Threat Reduction Agency (DTRA)HDTRA1-12-1-0041
Marie Curie FellowshipUNSPECIFIED
Department of Energy (DOE)DE-AC52-07NA27344
Issue or Number:9
Record Number:CaltechAUTHORS:20160719-231519023
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160719-231519023
Official Citation:Quantifying Interparticle Forces and Heterogeneity in 3D Granular Materials R. C. Hurley, S. A. Hall, J. E. Andrade, and J. Wright Phys. Rev. Lett. 117, 098005
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69121
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:20 Jul 2016 17:04
Last Modified:03 Oct 2019 10:19

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