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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Classification of the reversible–irreversible transitions in particle trajectories across the jamming transition point

http://hdl.handle.net/2237/00031174
http://hdl.handle.net/2237/00031174
6d3e2e67-cc0b-499e-9777-b6ca0d4cd6b0
名前 / ファイル ライセンス アクション
kawasaki_v8.02clean.pdf kawasaki_v8.02clean (2.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-01-15
タイトル
タイトル Classification of the reversible–irreversible transitions in particle trajectories across the jamming transition point
言語 en
著者 Nagasawa, Kentaro

× Nagasawa, Kentaro

WEKO 95203

en Nagasawa, Kentaro

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Miyazaki, Kunimasa

× Miyazaki, Kunimasa

WEKO 95204

en Miyazaki, Kunimasa

Search repository
Kawasaki, Takeshi

× Kawasaki, Takeshi

WEKO 95205

en Kawasaki, Takeshi

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
抄録
内容記述 The reversible–irreversible (RI) transition of particle trajectories in athermal colloidal suspensions under cyclic shear deformation is an archetypal nonequilibrium phase transition which has attracted much attention recently. Most studies of the RI transitions have focused on either dilute limit or very high densities well above the jamming transition point. The transition between the two limiting cases is largely unexplored. In this paper, we study the RI transition of athermal frictionless colloidal particles over a wide range of densities, with emphasis on the region below φJ, by using oscillatory sheared molecular dynamics simulation. We reveal that the nature of the RI transitions in the intermediate densities is very rich. As demonstrated by the previous work by Schreck et al. [Phys. Rev. E: Stat., Nonlinear, Soft Matter Phys., 2013, 88, 052205], there exist the point-reversible and the loop-reversible phases depending on the density and the shear strain amplitude. We find that, between the two reversible phases, a quasi-irreversible phase where the particles' trajectories are highly non-affine and diffusive. The averaged number of contacts of particles is found to characterize the phase boundaries. We also find that the system undergoes the yielding transition below but in the vicinity of φJ when the strain with a small but finite strain rate is applied. This yielding transition line matches with the RI transition line separating the loop-reversible from the irreversible phases. Surprisingly, the nonlinear rheological response called “softening” has been observed even below φJ. These findings imply that geometrical properties encoded in the sheared configurations control the dynamical transitions.
言語 en
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2020/10/14
言語 ja
内容記述タイプ Other
出版者
言語 en
出版者 Royal Society of Chemistry
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1039/C9SM01488H
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 1744-683X
書誌情報 en : Soft Matter

巻 15, 号 38, p. 7557-7566, 発行日 2019-10-14
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