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Technical Briefs

On the Strength of Graphene

[+] Author and Article Information
K. Y. Volokh

 Faculty of Civil and Environmental Engineering, Technion – Israel Institute of Technology, Haifa, 32000 Israelcvolokh@technion.ac.il

J. Appl. Mech 79(6), 064501 (Sep 13, 2012) (5 pages) doi:10.1115/1.4005582 History: Received April 27, 2011; Revised October 27, 2011; Posted February 01, 2012; Published September 13, 2012; Online September 13, 2012

Failure of a single-atomic-layer graphene sheet is analyzed in plane tension under the varying biaxiality condition. The analysis is based on the combined use of continuum and molecular mechanics where the strain energy is expressed with the help of the Tersoff-Brenner atomistic potential. A critical failure surface is produced for strains in biaxial tension. It is found that the anisotropy of graphene has a pronounced effect on its strength.

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Copyright © 2012 by American Society of Mechanical Engineers
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References

Figures

Grahic Jump Location
Figure 2

Graphene pattern is shadowed in gray

Grahic Jump Location
Figure 3

Critical failure strains in biaxial tension

Grahic Jump Location
Figure 1

Fragment of a graphene sheet

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