Dislocation Glides in Granular Media

Nakai, Fumiaki; Uneyama, Takashi; Sasaki, Yuto et al.

Physical review letters, 2025, 135(4), 048202

Number of Access:16（2025-12-08 16:59 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/102907

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Title
Dislocation Glides in Granular Media
Creator
NRID
1000080987206 1000080987206
ORCID
0000-0003-0629-7418 0000-0003-0629-7418
researchmap permalink
fumiaki_nakai fumiaki_nakai
CreatorName
Nakai, Fumiaki
NRID
1000010524720 1000010524720
CreatorName
Uneyama, Takashi
CreatorName
Sasaki, Yuto
NRID
1000030985809 1000030985809
CreatorName
Yoshii, Kiwamu
NRID
1000030346853 1000030346853
ORCID
0000-0002-4949-9389 0000-0002-4949-9389
researchmap permalink
katsuragihiroaki katsuragihiroaki
Scopus Author ID
8372372600 8372372600
CreatorName
Katsuragi, Hiroaki
Description
Nakai F., Uneyama T., Sasaki Y., et al. Dislocation Glides in Granular Media. Physical review letters 135, 048202 (2025); https://doi.org/10.1103/7g7s-c157.
Abstract
Atomic crystals with dislocations deform plastically at low stresses via dislocation glide. Whether dislocation glide occurs in macroscopic frictional granular media remains unknown. We simulate structural and rheological responses of a granular crystal with an edge dislocation. We discover that dislocation glide occurs at low interparticle friction coefficients, whereas at high friction, the crystal order breaks down. When the dislocation glide occurs, the yield stress is markedly lower than in dislocation-free crystals and varies linearly with the interparticle friction coefficient. The linear dependence arises from both the elastic barrier associated with the Peierls stress and the interparticle friction slip criteria.
Publisher
American Physical Society
Source Title
Physical review letters
Volume (Issue)
135(4)
Page
048202
Date of Issued
2025-07-23
Language
English
Handle URL
https://hdl.handle.net/11094/102907
eISSN
10797114
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/7g7s-c157
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article