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タイトル: | A microscopic theory for discontinuous shear thickening of frictional granular materials |
著者: | Saitoh, Kuniyasu Hayakawa, Hisao https://orcid.org/0000-0003-3462-5562 (unconfirmed) |
著者名の別形: | 早川, 尚男 |
発行日: | 30-Jun-2017 |
出版者: | EDP Sciences |
誌名: | EPJ Web of Conferences |
巻: | 140 |
論文番号: | 03063 |
抄録: | 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. |
著作権等: | © The Authors, published by EDP Sciences, 2017 This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited |
URI: | http://hdl.handle.net/2433/234525 |
DOI(出版社版): | 10.1051/epjconf/201714003063 |
出現コレクション: | 学術雑誌掲載論文等 |
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