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Title: Micromechanical origin of particle size segregation
Authors: Jing, L
Kwok, CY
Leung, YF 
Issue Date: 2017
Publisher: American Physical Society
Source: Physical review letters, 2017, v. 118, no. 11, 118001 How to cite?
Journal: Physical review letters 
Abstract: We computationally study the micromechanics of shear-induced size segregation and propose distinct migration mechanisms for individual large and small particles. While small particles percolate through voids without enduring contacts, large particles climb under shear through their crowded neighborhoods with anisotropic contact network. Particle rotation associated with shear is necessary for the upward migration of large particles. Segregation of large particles can be suppressed with inadequate friction, or with no rotation; increasing interparticle friction promotes the migration of large particles, but has little effect on the percolation of small particles.
ISSN: 0031-9007
EISSN: 1079-7114
DOI: 10.1103/PhysRevLett.118.118001
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