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
発行・発表の年月 2021/05/07
形態種別 研究論文
標題 Dynamic Susceptibilities in Dense Soft Athermal Spheres Under a Finite-Rate Shear
執筆形態 その他
掲載誌名 Frontiers in Physics
出版社・発行元 Frontiers Media {SA}
巻・号・頁 9
著者・共著者 Norihiro Oyama,Takeshi Kawasaki,Kuniyasu Saitoh
概要 <jats:p>The mechanical responses of dense packings of soft athermal spheres under a finite-rate shear are studied by means of molecular dynamics simulations. We investigate the volume fraction and shear rate dependence of the fluctuations in the shear stress and the interparticle contact number. In particular, we quantify them by defining the susceptibility as the ratio of the global to local fluctuations. The obtained susceptibilities form ridges on the volume fraction-shear rate plane, which are reminiscent of the Widom lines around the critical point in an equilibrium phase transition.</jats:p>
DOI 10.3389/fphy.2021.667103
ISSN 2296-424X/2296-424X
Put Code(ORCID) 99119184
PermalinkURL https://www.frontiersin.org/articles/10.3389/fphy.2021.667103/full