Finite element modelling of the instability in rapid fracture of graphene

doi:10.1016/j.engfracmech.2015.05.021

IMECH-IR > 非线性力学国家重点实验室

	Finite element modelling of the instability in rapid fracture of graphene
	Zhang B; Xiao HF; Yang G; Liu XM(刘小明); Zhang, B (reprint author), Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China.
发表期刊	ENGINEERING FRACTURE MECHANICS
	2015-06
卷号	141 页码:111-119
ISSN	0013-7944
摘要	A finite element model of graphene strip is developed to predict the instability of dynamic fracture, in which the C-C bonds are represented by Timoshenko beam elements, and the constitutive relation of beam is derived from the atomic potential. Crack instability and branching are observed under loading strain rates from similar to 10(-5) fs(-1) to similar to 10(-8) fs(-1). Under low loading rates, the initiated midway crack propagates straight at supersonic velocity, while kinking and oscillation occur beyond a critical crack velocity similar to 10.33 km/s under high rates. The results demonstrate that our equivalent models could provide efficient information for studying the fracture in graphene. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Dynamic Fracture Graphene Crack Velocity Finite Element
DOI	10.1016/j.engfracmech.2015.05.021
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000356239300007
WOS研究方向	Mechanics
WOS类目	Mechanics
项目资助者	NSFCs [11372131, 11232007, 11172130] ; Aeronautical Science Foundation [2012ZF52074] ; State Key Laboratory of Mechanics and Control of Mechanical Structures (NUAA) [MCMS-0114G01, MCMS-0215G01] ; 973 Program [2011CB707602] ; Fundamental Research Funds for the Central Universities ; PAPD of China ; NSFC [11202214] ; 973 Program of China [2012CB937500] ; Newton International Fellowship [NF080039]
课题组名称	LNM新型材料及结构的多尺度力学
论文分区	二类/Q2
引用统计	被引频次：19[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/311007/54958
专题	非线性力学国家重点实验室
通讯作者	Zhang, B (reprint author), Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Zhang B,Xiao HF,Yang G,et al. Finite element modelling of the instability in rapid fracture of graphene[J]. ENGINEERING FRACTURE MECHANICS,2015,141:111-119.
APA	Zhang B,Xiao HF,Yang G,刘小明,&Zhang, B .(2015).Finite element modelling of the instability in rapid fracture of graphene.ENGINEERING FRACTURE MECHANICS,141,111-119.
MLA	Zhang B,et al."Finite element modelling of the instability in rapid fracture of graphene".ENGINEERING FRACTURE MECHANICS 141(2015):111-119.

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