Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes
文献类型：期刊论文
| 作者 | Yang J(杨杰)2; Duan J(段军)1,2; Wang YJ(王云江)1,2 ; Jiang MQ(蒋敏强)1,2
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| 刊名 | EUROPEAN PHYSICAL JOURNAL E
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| 出版日期 | 2020-09-11 |
| 卷号 | 43期号:9页码:7 |
| 关键词 | Topical issue Disordered Non-Equilibrium Systems From Supercooled Liquids to Amorphous Solids |
| ISSN号 | 1292-8941 |
| DOI | 10.1140/epje/i2020-11983-6 |
| 通讯作者 | Jiang, M. Q.(mqjiang@imech.ac.cn) |
| 英文摘要 | It has been accepted that low-frequency vibrational modes are causally correlated to fundamental plastic rearrangement events in amorphous solids, irrespective of the structural details. But the mode-event relationship is far from clear. In this work, we carry out case studies using atomistic simulations of a three-dimensional Cu50Zr50 model glass under athermal, quasistatic shear. We focus on the first four plastic events, and carefully trace the spatiotemporal evolution of the associated low-frequency normal modes with applied shear strain. We reveal that these low-frequency modes get highly entangled with each other, from which the critical mode emerges spontaneously to predict a shear transformation event. But the detailed emergence picture is event by event and shear-protocol dependent, even for the first plastic event. This demonstrates that the instability of a plastic event is a result of extremely complex multiple-path choice or competition, and there is a strong, elastic interaction among neighboring instability events. At last, the generality of the present findings is shown to be applicable to covalent-bonded glasses. |
| 分类号 | Q3 |
| 资助项目 | National Natural Science Foundation of China (NSFC) Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; NSFC[11972345] ; NSFC[11790292] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[Y201704] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000571776200001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; NSFC ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
| 其他责任者 | Jiang, M. Q. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85291]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yang J,Duan J,Wang YJ,et al. Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes[J]. EUROPEAN PHYSICAL JOURNAL E,2020,43(9):7. |
| APA | 杨杰,段军,王云江,&蒋敏强.(2020).Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes.EUROPEAN PHYSICAL JOURNAL E,43(9),7. |
| MLA | 杨杰,et al."Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes".EUROPEAN PHYSICAL JOURNAL E 43.9(2020):7. |
入库方式： OAI收割
来源：力学研究所
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