A master equation for force distributions in dense granular materials

Kuniyasu Saitoh, Fumiko Ogushi

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

Abstract

Employing molecular dynamics simulations of two-dimensional soft particle packings, we investigate microscopic mechanical responses of granular materials to simple shear deforma-Tion. Though microscopic affine responses are deterministic, the restructuring of force-chain networks is well described by a stochastic method for the force distributions, i.e. a master equation. We find that microscopic responses of force-chains are anisotropic in average, while uctuations of forces are equiprobable in all directions, i.e. the probability of force uctuations is isotropic under simple shear deformation.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages1293-1300
Number of pages8
ISBN (Electronic)9781510833142
Publication statusPublished - 2016
EventMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016 - Salt Lake City, United States
Duration: 2016 Oct 232016 Oct 27

Publication series

NameMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
Volume2

Other

OtherMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
CountryUnited States
CitySalt Lake City
Period16/10/2316/10/27

Keywords

  • Force-chain network
  • Granular materials
  • Molecular dynamics simulation

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Mechanics of Materials
  • Energy Engineering and Power Technology

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