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Nonlocality in granular complex networks: Linking topology, kinematics and forces

Karapiperis, K. and Andrade, J. E. (2021) Nonlocality in granular complex networks: Linking topology, kinematics and forces. Extreme Mechanics Letters, 42 . Art. No. 101041. ISSN 2352-4316. doi:10.1016/j.eml.2020.101041. https://resolver.caltech.edu/CaltechAUTHORS:20201105-160425508

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Abstract

Dry granular systems respond to shear by a process of self-organization that is nonlocal in nature. This study reveals the interplay between the topological, kinematical and force signature of this process during shear banding in an sample of angular sand. Using Level-Set Discrete Element simulations of an in-situ triaxial compression experiment, and complex networks techniques, we identify communities of similar topology (cycles), kinematics (vortex clusters) and kinetics (force chains), and study their cooperative evolution. We conclude by discussing the implications of our observations for continuum modeling, including the identification of mesoscale order parameters, and the development of nonaffine kinematics models.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.eml.2020.101041DOIArticle
ORCID:
AuthorORCID
Karapiperis, K.0000-0002-6796-8900
Additional Information:© 2020 Published by Elsevier. Received 16 June 2020, Revised 14 September 2020, Accepted 26 September 2020, Available online 2 November 2020. Declaration of Competing Interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Subject Keywords:Granular materials; Complex networks; Nonlocality
DOI:10.1016/j.eml.2020.101041
Record Number:CaltechAUTHORS:20201105-160425508
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201105-160425508
Official Citation:K. Karapiperis, J.E. Andrade, Nonlocality in granular complex networks: Linking topology, kinematics and forces, Extreme Mechanics Letters, Volume 42, 2021, 101041, ISSN 2352-4316, https://doi.org/10.1016/j.eml.2020.101041. (http://www.sciencedirect.com/science/article/pii/S2352431620302455)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106464
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:06 Nov 2020 15:09
Last Modified:16 Nov 2021 18:54

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