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

Antoinette Tordesillas, D. C.Stuart Walsh

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110 Citations (Scopus)


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
Issue number1-2
Publication statusPublished - 8 Apr 2002
Externally publishedYes


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

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