Effect of defects on fracture strength of graphene sheets
| Data(s) |
2012
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|---|---|
| Resumo |
With a hexagonal monolayer network of carbon atoms, graphene has demonstrated exceptional electrical 22 and mechanical properties. In this work, the fracture of graphene sheets with Stone–Wales type defects and vacancies were investigated using molecular dynamics simulations at different temperatures. The initiation of defects via bond rotation was also investigated. The results indicate that the defects and vacancies can cause significant strength loss in graphene. The fracture strength of graphene is also affected by temperature and loading directions. The simulation results were compared with the prediction from the quantized fracture mechanics. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Elsevier |
| Relação |
http://eprints.qut.edu.au/66150/1/eprint_CMS2012_M.C._Wang_et_al.pdf DOI:10.1016/j.commatsci.2011.10.032 Wang, Mingchao, Yan, Cheng, Ma, Lin, Hu, Ning, & Chen, Mingwei (2012) Effect of defects on fracture strength of graphene sheets. Computational Materials Science, 54, pp. 236-239. |
| Direitos |
Copyright 2011 Elsevier This is the author’s version of a work that was accepted for publication in Computational Materials Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computational Materials Science, [VOL 54, (2012)] DOI: 10.1016/j.commatsci.2011.10.032 |
| Fonte |
School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty |
| Palavras-Chave | #091307 Numerical Modelling and Mechanical Characterisation #091399 Mechanical Engineering not elsewhere classified #Graphene #Defect #Fracture strength #Molecular dynamics simulation |
| Tipo |
Journal Article |
