Shear flow modeling of cohesive and frictional fine powder

S. Luding*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

57 Citations (Scopus)

Abstract

For continuum mechanics based silo design, the measuring and modelling methods for the shear flow behaviour of cohesive, frictional powders play a central role. Studies of the particle mechanics can provide a better physical "microscopic" understanding of the essential constitutive functions of a powder "continuum". The discrete element method (DEM) is a tool that allows considering the details of the contact and adhesion forces for each particle contact. During bi-axial shear, the DEM results show an elastic regime, yielding, and steady-state flow of a two-dimensional model powder.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
JournalPowder technology
Volume158
Issue number1-3
DOIs
Publication statusPublished - 27 Oct 2005
Externally publishedYes

Keywords

  • Bi-axial shear
  • Cohesive frictional powders
  • DEM simulation
  • Yield stress

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