| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 10023 | |
| Number of page(s) | 4 | |
| Section | Experimental Methods for Granular Mechanics | |
| DOI | https://doi.org/10.1051/epjconf/202534010023 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534010023
Decoding force transmission in industrial granular materials via vibration-induced densification
Université de Lorraine, CNRS, LRGP, Nancy F-54000, France
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
The behaviour of grain assemblies involves nonlinear and inelastic phenomena that link microscopic grain properties to macroscopic flow behaviour. This connection is mediated by the mesoscale, specifically the contact network, which remains especially difficult to access in real, cohesive industrial powders due to their heterogeneity, opacity, and fine particle size. In this study, we investigate vibrationinduced densification under controlled excitation conditions, tracking packing fraction dynamics up to the onset of decompaction. We find that the force required to trigger decompaction correlates with interparticle cohesion, and appears to mark a transition in bulk structural stability. Based on this, we define a dimensionless adhesion number, Ad = Fd/Wp, where Fd is the decompaction force and Wp the powder weight. Ad offers a force-based descriptor of bulk cohesion and may reflect underlying structural transitions at the mesoscale, a scale that remains challenging to access directly in industrial powders.
© The Authors, published by EDP Sciences, 2025
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