サイトウ クニヤス   Kuniyasu Saitoh
  齊藤 国靖
   所属   京都産業大学  理学部 物理科学科
   職種   准教授
言語種別 英語
発行・発表の年月 2017/06/30
形態種別 研究論文
査読 査読あり
標題 A microscopic theory for discontinuous shear thickening of frictional granular materials
執筆形態 その他
掲載誌名 EPJ Web of Conferences
出版社・発行元 EDP Sciences
巻・号・頁 140
著者・共著者 Kuniyasu Saitoh,F. Radjai,Hisao Hayakawa,S. Nezamabadi,S. Luding,J.Y. Delenne
概要 We extend a recent theory for the rheology of frictionless granular materials [1] to the case of frictional disks in two dimensions. Employing a frictional contact model for molecular dynamics simulations, we derive difference equations of the shear stress, the granular temperature, and the spin temperature from the generalized Green-Kubo formula, where all the terms are given by microscopic expressions. The numerical solutions of the difference equations not only describe the flow curve, but also reproduce the hysteresis of shear stress, which can be the signature of discontinuous shear thickening of frictional disks.
DOI 10.1051/epjconf/201714003063
ISSN 2100-014X
Put Code(ORCID) 34514753
PermalinkURL http://www.scopus.com/inward/record.url?eid=2-s2.0-85024122505&partnerID=MN8TOARS
researchmap用URL http://orcid.org/0000-0002-3511-2710