Journal article

Spatial Connectivity of Force Chains in a Simple Shear 3D Simulation Exhibiting Shear Bands

David M Walker, Antoinette Tordesillas, Matthew R Kuhn

Journal of Engineering Mechanics | American Society of Civil Engineers | Published : 2017

Abstract

Force chains within a granular material are the major load carriers responsible for the strength of a material. The authors study the spatial distribution of force chains across length scales in a three-dimensional (3D) assembly of spherical particles subject to simple shear. Specifically, the authors network sets of force chains by basing connectivity on the distance between chain particles. The authors quantify the connectivity of networked force chains at different length scales using ideas employed in landscape ecology. The authors find a geometric transition in force chain connectivity and observe a change in the character of this transition with respect to force chains restricted to th..

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Awarded by Australian Research Council


Funding Acknowledgements

This work was supported in part by the US Air Force (AFOSR 15IOA059), the United States Army Research Office (W911NF-11-1-0175), the Australian Research Council (DP120104759), and the Melbourne Energy Institute. The authors thank S. Tobin and S. Pucilowskii for generously sharing their Python code for force chain extraction.