In this work, the vibrational behavior of rectangular monolayer graphene sheets is predicted at different environmental temperatures. Graphene sheets are modeled according to their molecular structure via finite element analysis. Using molecular mechanics theory, the potential energy of graphene is expressed as temperature-dependent. The graphene interatomic interactions are simulated by spring elements, and the nodes of the model represent the carbon atoms. The carbon atom mass is considered in the assembly and solution of the vibrational problem. The temperature influence is introduced to the model because of its effect on the bond length and stiffness of the spring elements. The eigenvalue problem is solved using appropriate boundary conditions. The solution yields the frequencies and corresponding mode shapes of graphene for all temperatures, sheet dimensions, and orientations under the boundary conditions investigated. The results of this study demonstrate that the bending frequencies are not influenced by temperature, in contrast to the in-plane vibrations. The results demonstrate the accuracy of the proposed method compared with published data in the literature.
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28 May 2018
Research Article|
May 29 2018
Influence of temperature on the modal behavior of monolayer graphene sheets
A. S. Tsiamaki;
A. S. Tsiamaki
a)
Machine Design Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras
, GR-26500 Rion, Greece
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D. E. Katsareas;
D. E. Katsareas
a)
Machine Design Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras
, GR-26500 Rion, Greece
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N. K. Anifantis
N. K. Anifantis
b)
Machine Design Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras
, GR-26500 Rion, Greece
b)Author to whom correspondence should be addressed: nanif@upatras.gr. Tel.: +30 2610 997 195. Fax: +30 2610 997 207.
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a)
Electronic addresses: antsiam@upatras.gr and dkatsareas@upatras.gr
b)Author to whom correspondence should be addressed: nanif@upatras.gr. Tel.: +30 2610 997 195. Fax: +30 2610 997 207.
J. Appl. Phys. 123, 204307 (2018)
Article history
Received:
January 29 2018
Accepted:
May 07 2018
Citation
A. S. Tsiamaki, D. E. Katsareas, N. K. Anifantis; Influence of temperature on the modal behavior of monolayer graphene sheets. J. Appl. Phys. 28 May 2018; 123 (20): 204307. https://doi.org/10.1063/1.5023908
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