Influence of Defects on Elastic Buckling Properties of Single-Layered Graphene Sheets

Abstract:

Molecular structural mechanics based finite element method has been applied to study the effects of two types of Stone-Wales (SW) defects and vacancy defect on elastic buckling properties of single-layered graphene sheets (SLGSs). The defect effect factors of critical buckling stresses are calculated for the defective SLGSs with different chirality and geometrical dimensions. It is proved that defect effect factors are size-dependent and chirality-dependent. The results show that the vacancy defects will always weaken the SLGSs’ stability, and two types of SW defects have different effects on zigzag and armchair SLGSs. What’s more, the positions of defects also have remarkable influence on the critical buckling stress of SLGSs.

• Periodical: Key Engineering Materials (Volume 636)
• Pages: 11-14
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.636.11
• Online since: December 2014
• Authors: Bao Long Li, Li Jun Zhou, Jian Gao Guo*
• Keywords: Buckling Stress, Chirality, Graphene, Stone-Wales Defects, Vacancy Defects

References

[1] C. Baykasoglu, A. Mugan, Dynamic analysis of single-layer graphene sheets, Comp. Mater. Sci. 55 (2012) 228-236.

DOI: 10.1016/j.commatsci.2011.12.007

[2] C.G. Lee, X.D. Wei, J.W. Kysar, et al., Measurement of the elastic properties and intrinsic strength of monolayer graphene, Science 32 (2008) 321-385.

DOI: 10.1126/science.1157996

[3] S.P. Wang, J.G. Guo, Y. Jiang, The size- and chirality-dependent elastic properties of graphene nanofilms, J. Comput. Theor. Nanos. 10 (2013) 250-256.

DOI: 10.1166/jctn.2013.2687

[4] G.I. Giannopoulos, Elastic buckling and flexural rigidity of graphene nanoribbons by using a unique translational spring element per interatomic interaction, Comput. Mater. Sci. 53 (2012) 388-395.

DOI: 10.1016/j.commatsci.2011.08.027

[5] O. Frank, G. Tsoukleri, J. Parthenios, et al., Compression behavior of single-layer graphenes, J. Am. Chem. Soc. 4 (2010) 3131-3138.

DOI: 10.1021/nn100454w

[6] M.N. Amal , F.M. Peeters, Graphene nanoribbons subjected to axial stress, Phy. Rev. B 82 (2010) 085432.

[7] A.S. Pour, Elastic buckling of single-layered grephene sheet, Comput. Mater. Sci. 45 (2009) 266-270.

[8] C.Y. Li, T.W. Chou, A structural mechanics approach for the analysis of carbon nanotubes, Int. J. Solids Struct. 40 (2003) 2487-2499.

[9] S.C. Pradhan, Buckling of single layer graphene sheet based on nonlocal elasticity and higher order shear deformation theory, Phy. Lett. A 373 (2009) 4182-4188.

DOI: 10.1016/j.physleta.2009.09.021

[10] A.T. Samaei, S. Abbasion, M.M. Mirsayar, Buckling analysis of a single-layer graphene sheet embedded in an elastic medium based on nonlocal Mindlin plate theory, Mech. Res. Commun. 38 (2011) 481-485.

DOI: 10.1016/j.mechrescom.2011.11.002

[11] R. Ansari, S. Ajori, B. Motevalli, Mechanical properties of defective single-layered graphene sheets via molecular dynamics simulation, Superlattice. Microst. 51 (2012) 274-289.

DOI: 10.1016/j.spmi.2011.11.019

[12] R. Ansari, B. Motevalli, A. Montazeri, et al., Fracture analysis of monolayer graphene sheets with double vacancy defects via MD simulation. Solid State Commun. 151 (2011) 1141-1146.

DOI: 10.1016/j.ssc.2011.05.021

[13] S.P. Wang, J.G. Guo, L.J. Zhou. Influence of Stone-Wales defects on elastic properties of graphene nanofilms, Physic E 48 (2013) 29-35.

[14] M.C. Wang, C. Yan, L. Ma, et al., Effect of defects on fracture strength of graphene sheets, Comp. Mater. Sci. 54 (2012) 236-239.

[15] H.C. Schniepp, K.N. Kudin, J.L. Li, et al., Bending properties of single functionalized graphene sheets probed by atomic force microscopy, J. Am. Chem. Soc. 2 (2008) 2577-2584.

DOI: 10.1021/nn800457s

[16] M.N. Amal, F.M. Peeters, Defected graphene nanoribbons under axial compression, Appl. Phys. Lett. 97 (2010) 153118.

DOI: 10.1063/1.3496467