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    Effect of size polydispersity on micromechanical properties of static granular materials

    Access Status
    Open access via publisher
    Authors
    Shaebani, M.
    Madadi, Mahyar
    Luding, S.
    Wolf, D.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Shaebani, M. and Madadi, M. and Luding, S. and Wolf, D. 2013. Effect of size polydispersity on micromechanical properties of static granular materials. 1542 (875): pp. 875-878.
    Source Title
    AIP Conference Proceedings
    DOI
    10.1063/1.4812071
    ISBN
    9780735411661
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/23231
    Collection
    • Curtin Research Publications
    Abstract

    We analytically investigate the influence of particle size polydispersity on the micromechanical properties of granular packings. In order to approximate the macroscopic quantities in terms of the microscale details, we develop a meanfield approach. It is shown that the trace of the fabric and stress tensors, and the elements of the stiffness tensor can be expressed in terms of dimensionless correction factors (which depend only on the moments of the size distribution), besides the average packing properties such as packing fraction, mean coordination number, and mean normal force. The results of numerical simulations confirm the validity of our analytical predictions, as long as the size distribution is not too wide. © 2013 AIP Publishing LLC.

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