Aging in humid granular media

Abstract

Aging behavior is an important effect in the friction properties of solid surfaces. In this paper we investigate the temporal evolution of the static properties of a granular medium by studying the aging over time of the maximum stability angle of submillimetric glass beads. We report the effect of several parameters on these aging properties, such as the wear on the beads, the stress during the resting period, and the humidity content of the atmosphere. Aging effects in an ethanol atmosphere are also studied. These experimental results are discussed at the end of the paper.

7 pages, 9 figures

Cited by in corpus (8)

• Wet Granular Materials
• Influence of shear stress applied during flow stoppage and rest period on the mechanical properties of thixotropic suspensions
• Dynamic effective mass of granular media
• Shear Destruction of Frictional Aging and Memory
• Slow dynamics and aging of a confined granular flow
• Influence of fine particles on the stability of a humid granular pile
• Flow-induced shear instabilities of cohesive granulates
• Heterogeneities and local fluctuations in glassy systems