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Title: Griffith Criterion for Brittle Fracture in Graphene
Author: Yin HQ; Qi HJ; Fan FF; Zhu T; Wang BL(王宝林); Wei YJ(魏宇杰)
Source: NANO LETTERS
Issued Date: 2015-01
Volume: 15, Issue:3, Pages:1918-1924
Abstract: There are prevailing concerns with the critical dimensions when conventional theories break down. Here we find that the Griffith criterion remains valid for cracks down to 10 rim but overestimates the strength of shorter cracks. We observe the preferred crack extension along the zivag edge in graphene, and explain this phenomenon by local strength-based failure rather, than energy-based Griffith criterion. These results provide a mechanistic basis for reliable applications of graphene in miniaturized: devices and nanocomposites.
Keyword: Griffith criterion ; graphene ; fracture ; edge energy ; molecular dynamics
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China.
Correspondent Email: yujie_wei@lnm.imech.ac.cn
DOI: 10.1021/nl5047686
Related URLs: 查看原文
DOC Type: ARTICLE
WOS Subject: Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Subject Extended: Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS Keyword Plus: POLYCRYSTALLINE GRAPHENE ; INTRINSIC STRENGTH ; GRAIN-BOUNDARIES ; SHEETS
WOS ID: WOS:000351188000072
ISSN: 1530-6984
Funder: NSFC [11425211, 11021262, 11272327] ; MOST 973 of China [2012BC937500] ; AFOSR [FA9550-13-1-0088] ; NSF [CMMI-1100205]
Rank: [Yin, Hanqing; Wang, Baolin; Wei, Yujie] Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China; [Qi, H. Jerry; Fan, Feifei; Zhu, Ting] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
Subject: Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
Department: LNM微结构计算力学(筹)
Classification: 一类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/49908
Appears in Collections:非线性力学国家重点实验室_期刊论文

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