Effect of cohesive force on the formation of a sandpile

K. J. Dong, R. P. Zou, K. W. Chu, R. Y. Yang, A. B. Yu, D. S. Hu

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    7 Citations (Scopus)

    Abstract

    This paper presents a numerical study on the piling processes of mono-sized wet particles by the discrete element method (DEM). The capillary force between particles due to liquid bridge is implemented in an existing DEM model. The effects of moisture content on the repose angle and structure of a pile are studied by a series of controlled numerical experiments. It is confirmed that the structure of a pile is similar to that of a packing for cohesive particles. Moreover, the averaged local porosity and repose angle have similar changes with the moisture content and can be linearly correlated. Therefore, the relationship between the repose angle and the cohesive force can be established based on the previous correlation between the porosity and the force ratio of the cohesive force to gravity developed in the packing of cohesive particles.
    Original languageEnglish
    Title of host publicationPowders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media, 8-12 July 2013, Sydney, Australia
    PublisherAmerican Institute of Physics
    Pages646-649
    Number of pages4
    ISBN (Print)9780735411661
    DOIs
    Publication statusPublished - 2013
    EventInternational Conference on Micromechanics of Granular Media -
    Duration: 8 Jul 2013 → …

    Publication series

    Name
    ISSN (Print)0094-243X

    Conference

    ConferenceInternational Conference on Micromechanics of Granular Media
    Period8/07/13 → …

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