A micromechanical numerical analysis for a triaxial compression of granular materials

V. Magnanimo, L. La Ragione

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    1 Citation (Scopus)

    Abstract

    We focus on a triaxial compression at constant pressure in which a granular material, after an isotropic preparation, is sheared in a small range of monotone deformation. The aggregate is made by identical, elastic, spheres that interact through a non central contact forces. Because of the loading condition the material is transversely isotropic. Through a numerical analysis we show that aggregates with same pressure and porosity behave differently depending on the initial coordination number (i.e. the average number of contacts per particle). The relation of stress, volume change, elastic moduli and microstructure with the initial contact network is investigated.

    Original languageEnglish
    Title of host publicationPowders and Grains 2013
    Subtitle of host publicationProceedings of the 7th International Conference on Micromechanics of Granular Media
    EditorsAibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
    PublisherAIP
    Pages1234-1237
    Number of pages4
    ISBN (Print)978-0-7354-1166-1
    DOIs
    Publication statusPublished - 1 Aug 2013
    Event7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013 - Sydney, Australia
    Duration: 8 Jul 201312 Jul 2013
    Conference number: 7
    http://www.pg2013.unsw.edu.au/

    Publication series

    NameAIP Conference Proceedings
    PublisherAIP Publishing LLC
    Volume1542
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    Conference7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013
    Abbreviated titlePowders & Grains
    CountryAustralia
    CitySydney
    Period8/07/1312/07/13
    Internet address

    Keywords

    • Anisotropy
    • DEM
    • Microstructure

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