Rheology of Cohesive Granular Particles under Constant Pressure

• DOI: 10.7566/jpsj.87.094802
• Publication Date: 2018-08-29T01:15:32Z
• Authors: Yuta Yamaguchi; Satoshi Takada; Takahiro Hatano
• Keywords: Cohesion (chemistry); Oscillation (cell signaling)

The rheology of cohesive granular materials, under a constant pressure condition, is studied using molecular dynamics simulations. Depending on the shear rate, pressure, and interparticle cohesiveness, system exhibits four distinctive phases: uniform shear, oscillation, shear-banding, clustering. friction coefficient found to increase with inertial number, irrespective cohesiveness. becomes larger for strong cohesion. This trend explained by anisotropies coordination number angular distribution forces. In particular, we demonstrate that second-nearest neighbors play role in systems.