| 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.
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| Source Publication | ENGINEERING FRACTURE MECHANICS
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| 2015-06 | |
| Volume | 141Pages:111-119 |
| ISSN | 0013-7944 |
| Abstract | 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. |
| Keyword | Dynamic Fracture Graphene Crack Velocity Finite Element |
| DOI | 10.1016/j.engfracmech.2015.05.021 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000356239300007 |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Organization | 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] |
| Department | LNM新型材料及结构的多尺度力学 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/54958 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Zhang, B (reprint author), Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China. |
| Recommended Citation 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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