41 citations · 61 across the 15 of their papers we have counts for
15 papers
Statistical equivalence of reduced gravity and enhanced friction in granular packings
Haiyang Lu, Zhikun Zeng, Houfei Yuan +5
Using X-ray tomography, we compare granular packings prepared under buoyancy-reduced effective gravity with normal gravity packings of particles with systematically varied friction…
A Unified Glassy Rheology for Granular Matter
Zhikun Zeng, Jiazhao Xu, Hanyu Li +14
Granular flows are ubiquitous in nature and industrial applications, yet a complete continuum theory remains a long-standing challenge. The leading empirical approach, μ(I) rheolog…
Competition between Glassy Five-Fold Structures and Locally Dense Packing Structures Governs Two-Stage Compaction of Granular Hexapods
Rudan Luo, Houfei Yuan, Yi Xing +9
Using X-ray tomography, we experimentally investigate the structural evolution of packings composed of 3D-printed hexapod particles, each formed by three mutually orthogonal sphero…
Compaction of Granular Columns under Thermal Cycling
Yuxuan Luo, Haiyang Lu, Xinyu Ai +5
Granular materials undergo compaction under periodic temperature fluctuations, leading to various engineering and geological phenomena from landslides to silo compaction. Although…
Identifying Bridges from Asymmetric Load-Bearing Structures in Tapped Granular Packings
Chijin Zhou, Shuyang Zhang, Xueliang Dai +5
Using high-resolution x-ray tomography, we experimentally investigate the bridge structures in tapped granular packings composed of particles with varying friction coefficients. We…
Testing Adam-Gibbs relationship in tapped Granular Packings
Xinyu Ai, Houfei Yuan, Shuyang Zhang +4
Disordered granular packings share many similarities with supercooled liquids, particu-larly in the rapid increase of structural relaxation time within a narrow range of temperatur…
Microscopic Structural Study on the Growth History of Granular Heaps Prepared by the Raining Method
Hanyu Li, Houfei Yuan, Zhikun Zeng +4
Granular heaps are critical in both industrial applications and natural processes, exhibiting complex behaviors that have sparked significant research interest. The stress dip phen…
Edwards thermodynamic framework controls density segregation in cyclically sheared granular materials
Haiyang Lu, Houfei Yuan, Shuyang Zhang +5
Using X-ray tomography, we experimentally investigate granular segregation phenomena in a mixture of particles with different densities under quasi-static cyclic shear. We quantita…
Experimental Study of the Nematic Transition in Granular Spherocylinder Packings under Tapping
Haitao Yu, Zhikun Zeng, Ye Yuan +3
Using x-ray tomography, we experimentally investigate the nematic transition in granular spherocylinder packings induced by tapping. Upon the validation of the Edwards ensemble fra…
Experimental Study of Granular Clogging in Two-Dimensional Hopper
Shuyang Zhang, Zhikun Zeng, Houfei Yuan +5
We experimentally investigate the clogging process of granular materials in a two-dimensional hopper, and present a self-consistent physical mechanism of clogging based on preforme…
From creep to flow: Granular materials under cyclic shear
Ye Yuan, Zhikun Zeng, Yi Xing +4
Granular materials such as sand, powders, and grains are omnipresent in daily life, industrial applications, and earth-science [1]. When unperturbed, they form stable structures th…
Equivalence of fluctuation-dissipation and Edwards' temperature in cyclically sheared granular systems
Zhikun Zeng, Shuyang Zhang, Xu Zheng +4
Using particle trajectory data obtained from x-ray tomography, we determine two kinds of effective temperatures in a cyclically sheared granular system. The first one is obtained f…
Influence of Roughness on Granular Avalanches
Jie Zheng, Yi Xing, Ye Yuan +10
Combining X-ray tomography with simultaneous shear force measurement, we investigate shear-induced granular avalanches using spherical particles with different surface roughness. W…
Experimental Test on Edwards Volume Ensemble of Tapped Granular Packings
Ye Yuan, Yi Xing, Jie Zheng +9
Using X-ray tomography, we experimentally investigate granular packings subject to mechanical tapping for three types of beads with different friction coefficients. We validate Edw…
Granular Segregation Mechanisms by Cyclic Shear
Zhifeng Li, Zhikun Zeng, Yi Xing +6
We present an X-ray tomography study of the segregation mechanisms of tracer particles in a three-dimensional cyclically sheared bi-disperse granular medium. Big tracers are dragge…