Jamming transition evinced by Voronoi Tesselation

Abstract

We calculated the Voronoi tessellation (VT) of simulations of two-dimensional granular system disturbed by an intruder. The intruder is kept fixed within a rectangular box containing certain amount of grains. Making the box to move against the intruder we calculated the VT for several instants of this movement, analyzing geometrical properties of the Voronoi polygons in function of time. The dependence of stationary values of the polygon areas and number of sides in function of the packing fraction (φ) of the granular media has shown that the system displays a possible jamming transition at critical point φ c ≈ 80.5%.