Micromechanical observation of kinematics of sheared circular discs
Usman Ali,
Mamoru Kikumoto,
Ying Cui
et al.
Abstract:Particle rolling is an essential microscopic mechanism that governs macroscopic behavior. This study conducts biaxial shearing tests on bi-dispersed circular discs at different confining pressures. A novel 2D image analysis technique is employed to measure the rolling of all the particles. It is observed that most of the particles exhibit significant rolling during shearing. Rollings are normally distributed in clockwise and counterclockwise directions, and the net rolling of the granular assembly is almost ze… Show more
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