2009/12/16 by M. Pica Ciamarra, Massimo Pica Ciamarra, R. Pastore +5 · 94 citations
Engineering · Materials Science · Physics and Astronomy · #Adhesion, Friction, and Surface Interactions #Composite material #Condensed matter physics #Dilatant #Discrete element method #Geology #Geotechnical engineering #Granular flow and fluidized beds #Granular material #Jamming #Material Dynamics and Properties #Materials science #Mechanics #Phase (matter) #Phase diagram #Phase transition #Physics #Shear (geology) #Shear stress #Statistical physics #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.84.041308
published in Physical Review E 84(4), 041308 (American Physical Society)
arxiv created 2009/12/16 · openalex publication_date 2011/10/28 · arxiv updated 2012/02/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the jamming transition of frictional particulate systems via discrete element simulations, reporting the existence of new regimes, which are conveniently described in a jamming phase diagram with axes density, shear stress, and friction coefficient. The resulting jammed states are characterized by different mechanical and structural properties and appear not to be "fragile" as speculated. In particular, we find a regime, characterized by extremely long processes, with a diverging time scale, whereby a suspension first flows but then suddenly jams. We link this sudden jamming transition to the presence of impeded dilatancy.