| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 02015 | |
| Number of page(s) | 4 | |
| Section | Rheology and Constitutive Modelling | |
| DOI | https://doi.org/10.1051/epjconf/202534002015 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534002015
The influence of the inter-particle sliding, rolling and torsion resistance on the skew-symmetric stress of sheared granular materials
1 University of Twente, Enschede, The Netherlands
2 School of Engineering, The University of Edinburgh, UK
* Contributed equally
** e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
Granular materials are made of discrete particles that interact with each other through their contacts (forces and torques). On the example of a particle simulation of a Cartesian (planar) split-bottom shear cell, we show the effect of microscopic resistance contact parameters between spherical particles on macroscopic continuum fields. Our results show that rolling friction has the strongest effect on the non-classical micropolar skew-symmetric stress. This skew-symmetric stress peaks in the same area as the shear band, and remains finite outside of it for vanishing shear rate. Its magnitude shows an increasing correlation with increasing shear band width. Torsion resistance has a similar, but smaller influence, whereas the correlation of sliding resistance only is almost negligible.
© The Authors, published by EDP Sciences, 2025
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