Griffith Criterion for Brittle Fracture in Graphene

doi:10.1021/nl5047686

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	Griffith Criterion for Brittle Fracture in Graphene
	Yin HQ; Qi HJ; Fan FF; Zhu T; Wang BL(王宝林); Wei YJ(魏宇杰); Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China.
发表期刊	NANO LETTERS
	2015-01
卷号	15 期号:3 页码:1918-1924
ISSN	1530-6984
摘要	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.
关键词	Griffith Criterion Graphene Fracture Edge Energy Molecular Dynamics
学科领域	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
DOI	10.1021/nl5047686
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000351188000072
关键词[WOS]	POLYCRYSTALLINE GRAPHENE ; INTRINSIC STRENGTH ; GRAIN-BOUNDARIES ; SHEETS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
项目资助者	NSFC [11425211, 11021262, 11272327] ; MOST 973 of China [2012BC937500] ; AFOSR [FA9550-13-1-0088] ; NSF [CMMI-1100205]
课题组名称	LNM微结构计算力学（筹）
论文分区	一类
引用统计	被引频次：172[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/311007/49908
专题	非线性力学国家重点实验室
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Yin HQ,Qi HJ,Fan FF,et al. Griffith Criterion for Brittle Fracture in Graphene[J]. NANO LETTERS,2015,15,3,:1918-1924.
APA	Yin HQ.,Qi HJ.,Fan FF.,Zhu T.,Wang BL.,...&Wei, YJ .(2015).Griffith Criterion for Brittle Fracture in Graphene.NANO LETTERS,15(3),1918-1924.
MLA	Yin HQ,et al."Griffith Criterion for Brittle Fracture in Graphene".NANO LETTERS 15.3(2015):1918-1924.

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