کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
772418 | 1463208 | 2013 | 7 صفحه PDF | دانلود رایگان |
A simple analytical study of a single-atom-thick sheet of graphene under biaxial tension is presented. It is based on the combination of the approaches of continuum and molecular mechanics. On the molecular level the Tersoff-Brenner potential with a modified cut-off function is used as an example. Transition to a continuum description is achieved by employing the Cauchy–Born rule. In this analysis the graphene sheet is considered as a crystal composed of two simple Bravais lattices and the mutual atomic relaxation between these lattices is taken into account. Following this approach a critical failure surface is produced for strains in biaxial tension. The adopted methodology is discussed in the context of the alternative approaches.
► Analytical study of a single-atom-thick sheet of graphene under biaxial tension is presented.
► Approaches of continuum and molecular mechanics are combined.
► The graphene sheet is considered as a crystal composed of two simple Bravais lattices.
► The mutual atomic relaxation between these lattices is taken into account.
► A critical failure surface is produced for strains in biaxial tension.
Journal: European Journal of Mechanics - A/Solids - Volume 39, May–June 2013, Pages 291–297