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Finite element analysis of the contact forces between viscoelastic particles

  • Q. J. Zheng
  • , H. P. Zhu
  • , A. B. Yu
  • University of New South Wales
  • Western Sydney University

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

1 Scopus citations

Abstract

The normal and tangential force-displacement (NFD and TFD) relations as well as the rolling friction between viscoelastic particles are investigated by means of finite element method (FEM). A new set of semi-theoretical models are proposed for the NFD, TFD and rolling friction based on the contact mechanics and the FEM results. Compared with previous empirical models (e.g. Linear-Spring-Dashpot model), the new models have an advantage that all parameters can be directly determined from the material properties. Therefore they can eliminate the uncertainty in parameter selection and should be more effective in discrete element method (DEM) simulations of viscoelastic granular materials.

Original languageEnglish
Title of host publicationPowders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media
Pages847-850
Number of pages4
DOIs
StatePublished - 2013
Event7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013 - Sydney, NSW, Australia
Duration: 8 Jul 201312 Jul 2013

Publication series

NameAIP Conference Proceedings
Volume1542
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013
Country/TerritoryAustralia
CitySydney, NSW
Period8/07/1312/07/13

Keywords

  • Contact mechanics
  • discrete element method
  • finite element method
  • granular dynamics simulation
  • viscoelastic particles

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