Hurley, Ryan and Marteau, Eloïse and Ravichandran, Guruswami and Andrade, José E. (2014) Extracting inter-particle forces in opaque granular materials: Beyond photoelasticity. Journal of the Mechanics and Physics of Solids, 63 . pp. 154-166. ISSN 0022-5096. doi:10.1016/j.jmps.2013.09.013. https://resolver.caltech.edu/CaltechAUTHORS:20140313-103152302
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Abstract
This paper presents the first example of inter-particle force inference in real granular materials using an improved version of the methodology known as the Granular Element Method (GEM). GEM combines experimental imaging techniques with equations governing particle behavior to allow force inference in cohesionless materials with grains of arbitrary shape, texture, and opacity. This novel capability serves as a useful tool for experimentally characterizing granular materials, and provides a new means for investigating force networks. In addition to an experimental example, this paper presents a precise mathematical formulation of the inverse problem involving the governing equations and illustrates solution strategies.
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| Additional Information: | © 2013 Published by Elsevier Ltd. Received 18 February 2013. Received in revised form 23 July 2013. Accepted 17 September 2013. Available online 4 October 2013. The authors would like to acknowledge our colleagues in Grenoble, France for fruitful discussions on GEM as a method. Specifically, we would like to acknowledge illuminating discussions with Denis Caillerie and Gioacchino (Cino) Viggiani from Laboratoire 3SR. Also, partial support for this research was provided by the U.S. Department of Defense under AFOSR Center of Excellence award no. FA9550-12-1-0091 and DTRA award no. HDTRA1-12-1-0041. This support is gratefully acknowledged. | |||||||||
| Group: | GALCIT | |||||||||
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| Subject Keywords: | Granular element method; Contact forces; Discrete mechanics; Multiscale modeling | |||||||||
| DOI: | 10.1016/j.jmps.2013.09.013 | |||||||||
| Record Number: | CaltechAUTHORS:20140313-103152302 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140313-103152302 | |||||||||
| Official Citation: | Ryan Hurley, Eloïse Marteau, Guruswami Ravichandran, José E. Andrade, Extracting inter-particle forces in opaque granular materials: Beyond photoelasticity, Journal of the Mechanics and Physics of Solids, Volume 63, February 2014, Pages 154-166, ISSN 0022-5096, http://dx.doi.org/10.1016/j.jmps.2013.09.013. (http://www.sciencedirect.com/science/article/pii/S0022509613001889) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 44300 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 13 Mar 2014 20:58 | |||||||||
| Last Modified: | 10 Nov 2021 16:50 |
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