Microrheology to probe non-local effects in dense granular flows

• Published in: Europhysics letters Vol. 109; no. 2; pp. 24002 - p1-24002-p6
• Main Authors: Bouzid, Mehdi, Trulsson, Martin, Claudin, Philippe, Clément, Eric, Andreotti, Bruno
• Format: Journal Article
• Language: English
• Published: Les Ulis EDP Sciences, IOP Publishing and Società Italiana di Fisica 01.01.2015; IOP Publishing; European Physical Society / EDP Sciences / Società Italiana di Fisica / IOP Publishing
• Subjects: 45.70.-n; 47.57.Gc; 83.80.Fg; Computer simulation; Condensed Matter; Coulomb friction; Criteria; Edge dislocations; Granular materials; Mathematical models; Physics; Rheological properties; Rheology; Shear bands; Shear rate; Slip bands; Soft Condensed Matter; Space probes; Yield criteria

A granular material is observed to flow under the Coulomb yield criterion as soon as this criterion is satisfied in a remote but contiguous region of space. We investigate this non-local effect using discrete element simulations, in a geometry similar, in spirit, to the experiment of Reddy et al. (P...