8 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) rheolo…
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…