2013/06/30 by Ryohei Seto, Romain Mari, Jeffrey F. Morris +1 · 10 citations
Engineering · Environmental Science · Materials Science · Physics and Astronomy · #Composite material #Condensed matter physics #Dilatant #Granular flow and fluidized beds #Jamming #Landslides and related hazards #Material Dynamics and Properties #Materials science #Mechanics #Physics #Shear (geology) #Shear rate #Shear stress #Viscosity #Volume fraction #cond-mat.soft #physics.flu-dyn
paper · pdf · doi:10.1103/physrevlett.111.218301
published as Phys. Rev. Lett. 111, 218301 (2013) · 5 pages, 2 figures, to appear in Phys. Rev. Lett
arxiv created 2013/10/05 · openalex publication_date 2013/11/18 · arxiv updated 2013/11/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Discontinuous shear thickening (DST) observed in many dense athermal suspensions has proven difficult to understand and to reproduce by numerical simulation. By introducing a numerical scheme including both relevant hydrodynamic interactions and granularlike contacts, we show that contact friction is essential for having DST. Above a critical volume fraction, we observe the existence of two states: a low viscosity, contactless (hence, frictionless) state, and a high viscosity frictional shear jammed state. These two states are separated by a critical shear stress, associated with a critical shear rate where DST occurs. The shear jammed state is reminiscent of the jamming phase of granular matter. Continuous shear thickening is seen as a lower volume fraction vestige of the jamming transition.