A Master equation for force distributions in polydisperse frictional particle systems

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Abstract

An incremental evolution equation, i.e. a Master equation in statistical mechanics, is introduced for force distributions in polydisperse frictional particle packings. As basic ingredients of the Master equation, the conditional probability distributions of particle overlaps are determined by molecular dynamics simulations. Interestingly, tails of the distributions become much narrower in the case of frictional particles than frictionless particles, implying that correlations of overlaps are strongly reduced by microscopic friction. Comparing different size distributions, we find that the tails are wider for the wider distribution.
Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015
EditorsE. Onate, M. Bischoff, D.R.J. Owen, P. Wriggers, T. Zohdi
PublisherInternational Center for Numerical Methods in Engineering
Number of pages12
ISBN (Print)9788494424472
Publication statusPublished - 28 May 2015
Event4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain
Duration: 28 Sep 201530 Sep 2015
Conference number: 4
http://congress.cimne.com/particles2015/frontal/default.asp

Conference

Conference4th International Conference on Particle-Based Methods, PARTICLES 2015
Abbreviated titlePARTICLES 2015
CountrySpain
CityBarcelona
Period28/09/1530/09/15
Internet address

Keywords

  • IR-99060
  • METIS-314810

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