A plasticity model with microstructure evolution for quasi-static granular flows

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

We develop a plasticity model to predict complex rheological behaviors of quasi-static granular flows. The stress is decomposed to a pressure term and a deviatoric term with a macroscopic friction coefficient. The closures to the pressure and the friction coefficient are linked to the microstructure evolution, which is modeled by the coordination number and fabric evolution equations. The material constants in the model are functions of particle-level properties and are calibrated using the data from simulations of steady and unsteady simple shear using the discrete element method (DEM).

Original languageEnglish (US)
Title of host publicationIUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows
Pages280-289
Number of pages10
DOIs
StatePublished - Jul 21 2010
EventJoint IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows - Reggio Calabria, Italy
Duration: Sep 14 2009Sep 18 2009

Publication series

NameAIP Conference Proceedings
Volume1227
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherJoint IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows
CountryItaly
CityReggio Calabria
Period9/14/099/18/09

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Constitutive modeling
  • Dense granular flows
  • Discrete element method

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  • Cite this

    Sun, J., & Sundaresan, S. (2010). A plasticity model with microstructure evolution for quasi-static granular flows. In IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows (pp. 280-289). (AIP Conference Proceedings; Vol. 1227). https://doi.org/10.1063/1.3435398