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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 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2017/06 |
| 形態種別 | 研究論文（国際会議プロシーディングス） |
| 査読 | 査読あり |
| 標題 | Stochastic model for the micromechanics of jammed granular materials: Experimental studies and numerical simulations |
| 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 | Mathias Tolomeo,Kuniyasu Saitoh,Combe Gaël,Stefan Luding,Vanessa Magnanimo,Vincent Richefeu,Gioacchino Viggiani |
| 概要 | To describe statistical properties of complicated restructuring of the force network under isotropic compression, we measure the conditional probability distributions (CPDs) of changes of overlaps and gaps between neighboring particles by experiments and numerical simulations. We find that the CPDs obtained from experiments on a 2D granular material exhibit non-Gaussian behavior, which indicates strong correlations between the configurations of overlaps and gaps before and after deformation. We also observe the non-Gaussian CPDs by molecular dynamics simulations of frictional disks in two dimensions. In addition, the numerically calculated CPDs are well described by q-Gaussian distribution functions, where the q-indices agree well with those from experiments. |
| DOI | 10.1051/epjconf/201714002021 |
| ISSN | 2100-014X |
| PermalinkURL | http://www.scopus.com/inward/record.url?eid=2-s2.0-85024094737&partnerID=MN8TOARS |
| researchmap用URL | http://orcid.org/0000-0002-3511-2710 |