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Published January 2021 | public
Journal Article

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


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.

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.

Additional details

August 22, 2023
October 20, 2023