- Physical Review Journals
All JournalsPhysics Magazine

Physical Review Letters

    X-Ray Tomography Investigation of Cyclically Sheared Granular Materials

    Yi Xing1, Jie Zheng1, Jindong Li1, Yixin Cao1, Wei Pan1, Jie Zhang1,2, and Yujie Wang1,3,*

    • 1School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
    • 2Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
    • 3Materials Genome Initiative Center, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

    • *Corresponding author. yujiewang@sjtu.edu.cn
    PDF

    Phys. Rev. Lett. 126, 048002 – Published 27 January, 2021

    DOI: https://doi.org/10.1103/PhysRevLett.126.048002

    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 macroscopic shear force during the shear cycle. We explain the macroscopic behaviors of the system based on microscopic processes, including 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.

    Physics Subject Headings (PhySH)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    Other Options

    Supplemental Material (Subscription Required)

    References (Subscription Required)

    Outline

    Information

    Phys. Rev. Lett. 126, 048002– Published 27 January, 2021
    • Received 4 July 2020
    • Revised 24 October 2020
    • Accepted 4 January 2021
    Crossmark - Check for updates button

    © 2021 American Physical Society

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation