Macroscopic stress from dynamic, rotating granular media

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Abstract

In this brief study, the stress is averaged over a two-dimensional rigid particle (disk) that is in contact with other objects via localized (point) contacts. In contrast to previous studies, the rotation dynamics of the particles is also taken into account here The stress contains four terms, (i) the static stress due to forces, (ii) the dynamic stress due to translational velocity fluctuations, (iii) the dynamic stress due to rotational velocity fluctuations, and (iv) the stress due to changes of angular velocities due to torques.
Original languageEnglish
Title of host publicationIUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows
EditorsJoe Goddard, Pasquale Giovine, James T. Jenkins
Place of PublicationNew York
PublisherAIP Publishing LLC
Pages208-213
ISBN (Print)978-0-7354-0772-5
DOIs
Publication statusPublished - 2010

Publication series

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

Keywords

  • Dynamic stress
  • Rotations
  • Averaging
  • Fluctuations
  • Non-equilibrium

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