The effect of microscopic friction and size distributions on conditional probability distributions in soft particle packings

Kuniyasu Saitoh, Vanessa Magnanimo, Stefan Luding

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Employing two-dimensional molecular dynamics (MD) simulations of soft particles, we study their non-affine responses to quasi-static isotropic compression where the effects of microscopic friction between the particles in contact and particle size distributions are examined. To quantify complicated restructuring of force-chain networks under isotropic compression, we introduce the conditional probability distributions (CPDs) of particle overlaps such that a master equation for distribution of overlaps in the soft particle packings can be constructed. From our MD simulations, we observe that the CPDs are well described by q-Gaussian distributions, where we find that the correlation for the evolution of particle overlaps is suppressed by microscopic friction, while it significantly increases with the increase of poly-dispersity.

本文言語English
ページ(範囲)409-417
ページ数9
ジャーナルComputational Particle Mechanics
4
4
DOI
出版ステータスPublished - 2017 10月 1

ASJC Scopus subject areas

  • 計算力学
  • 土木構造工学
  • 数値解析
  • モデリングとシミュレーション
  • 流体および伝熱
  • 計算数学

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