Abstract
This paper presents a study on the shear buckling of rippled single-layered graphene sheets in thermal environments by using molecular dynamics simulation. A zigzag or armchair graphene sheet is simply supported or clamped on its four edges and incremental in-plane shear forces instead of the commonly used shear strains are applied to the edges until initial buckling and final crushing of the graphene sheet are achieved. It is observed that the shear buckling modes of square and rectangular graphene sheets obtained from the molecular dynamics simulations are different from the ones of thin square and rectangular plates as predicted by continuum mechanics models. The shear buckling capacity of a rectangular zigzag graphene sheet is higher than its armchair counterpart. The environmental temperature, when it varies from 300 to 900K, has insignificant impact on the shear buckling forces of the simply supported and clamped square graphene sheets.
Published Version
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