Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes

doi:10.1140/epje/i2020-11983-6

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	Complexity of plastic instability in amorphous solids: Insights from spatiotemporal evolution of vibrational modes
	Yang J(杨杰)1; Duan J(段军)1,2; Wang YJ(王云江)1,2 ; Jiang MQ(蒋敏强)1,2
通讯作者	Jiang, M. Q.(mqjiang@imech.ac.cn)
发表期刊	EUROPEAN PHYSICAL JOURNAL E
	2020-09-11
卷号	43 期号:9 页码:7
ISSN	1292-8941
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.
关键词	Topical issue Disordered Non-Equilibrium Systems From Supercooled Liquids to Amorphous Solids
DOI	10.1140/epje/i2020-11983-6
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000571776200001
WOS研究方向	Chemistry ; Materials Science ; Physics ; Polymer Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Polymer Science
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]
项目资助者	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
论文分区	Q3
力学所作者排名	1
RpAuthor	Jiang, M. Q.
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85292
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, 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.

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