Effect of size polydispersity on micromechanical properties of static granular materials

M.R. Shaebani, M. Madadi, Stefan Luding, D.E. Wolf

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

1 Citation (Scopus)

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.
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 Publishing LLC
Pages875-878
ISBN (Print)978-0-7354-1166-1
DOIs
Publication statusPublished - 8 Jul 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

  • Polydispersity
  • Granular solids
  • Fabric
  • Micromechanics

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