Conference Proceedings

Unitary Stick-Slip Motion in Granular Beds

JE Hilton, PW Cleary, A Tordesillas, A Yu (ed.), K Dong (ed.), R Yang (ed.), S Luding (ed.)

POWDERS AND GRAINS 2013 | AMER INST PHYSICS | Published : 2013

Abstract

The dynamics of granular beds subject to applied stresses are often characterised by repeated cycles of stick-slip motion. The exact structural processes occurring during these repeated cycles are challenging to understand due to the complex multiparticle interactions within the material. Using a computational approach, we reduce the loading imposed on the system to the smallest possible component-a single particle within the bed. This simplified system allows us to isolate the contribution from a single unit of granular material to the overall response of the bed. We use the Discrete Element Method to model a packed, periodic, granular bed responding to the action of a single particle. The ..

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