Percolation and jamming transitions in particulate systems with and without cohesion

TL;DR

This paper investigates how percolation and jamming transitions in particulate systems are affected by factors like cohesion, compression rate, and dynamics, revealing conditions under which these transitions coincide or differ.

Contribution

It provides a comparative analysis of percolation and jamming transitions in both cohesive and non-cohesive particulate systems under various compression conditions.

Findings

Percolation and jamming transitions coincide in quasi-static, non-cohesive systems.

Cohesive systems show distinct percolation and jamming transitions.

Transition differences are influenced by compression rate and cohesion presence.

Abstract

We consider percolation and jamming transitions for particulate systems exposed to compression. For the systems built of particles interacting by purely repulsive forces in addition to friction and viscous damping, it is found that these transitions are influenced by a number of effects, and in particular by the compression rate. In a quasi-static limit, we find that for the considered type of interaction between the particles, percolation and jamming transitions coincide. For cohesive systems, however, or for any system exposed to even slow dynamics, the differences between the considered transitions are found and quantified.