Mechanical and geometrical properties of jammed wet granular materials

TL;DR

This study numerically explores how wet granular materials with attractive forces behave mechanically and geometrically, revealing complex non-monotonic properties and structural changes near the jamming transition.

Contribution

It provides new insights into the mechanical response and structural organization of wet granular materials with irreversible attractions, highlighting inflection points and non-monotonic behaviors.

Findings

Shear modulus has two inflection points with increasing packing fraction.

Bulk modulus exhibits non-monotonic behavior.

Voronoi cell volume distribution broadens near jamming.

Abstract

We numerically investigate the mechanical and geometrical properties of dense wet granular particles with irreversible attractive interaction. The shear modulus exhibits two inflection points as the packing fraction increases, and the bulk modulus shows a non-monotonic behavior. The coordination number also exhibits two inflection points. The peak position in the pair correlation function shifts to a lower value due to attractive interaction. The Voronoi tessellation of the particle configuration reveals that the probability density function for the volume of the Voronoi cell broadens as the packing fraction approaches the jamming point.