Incorporating rolling resistance and contact anisotropy in micromechanical models of granular media

Antoinette Tordesillas, D. C.Stuart Walsh

Research output: Contribution to journalArticleResearchpeer-review

102 Citations (Scopus)

Abstract

Recent findings from non-invasive experiments have shown that rolling resistance and contact anisotropy have a significant influence on the bulk behaviour of granular media. To date, however, there has been no generalised continuum model that accounts for both of these factors. In this paper, we propose a method by which rolling resistance and contact anisotropy may be introduced in a micropolar model of granular media. To capture key microstructures like shear bands, a homogenisation procedure on the scale of a particle and its local void space is developed.

Original languageEnglish
Pages (from-to)106-111
Number of pages6
JournalPowder Technology
Volume124
Issue number1-2
DOIs
Publication statusPublished - 8 Apr 2002
Externally publishedYes

Keywords

  • Couple stress
  • Granular materials
  • Micropolar
  • Microstructure
  • Shear band

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