X-ray tomography investigation of cyclically sheared granular materials
Soft Condensed Matter
2021-02-03 v1 Disordered Systems and Neural Networks
Abstract
We perform combined X-ray tomography and shear force measurements on a cyclically sheared granular system with highly transient behaviors, and obtain the evolution of microscopic structures and the macroscopic shear force during the shear cycle. We explain the macroscopic behaviors of the system based on microscopic processes, including the particle level structural rearrangement and frictional contact variation. Specifically, we show how contact friction can induce large structural fluctuations and cause significant shear dilatancy effect for granular materials, and we also construct an empirical constitutive relationship for the macroscopic shear force.
Keywords
Cite
@article{arxiv.2010.12832,
title = {X-ray tomography investigation of cyclically sheared granular materials},
author = {Yi Xing and Jie Zheng and Jindong Li and Yixin Cao and Wei Pan and Jie Zhang and Yujie Wang},
journal= {arXiv preprint arXiv:2010.12832},
year = {2021}
}
Comments
26 pages, 4 figures