The prediction of critical buckling load of graphene sheet with different boundary conditions by a structural mechanics model

In this paper, the critical buckling load of single-layer and double-layer graphene with different boundary conditions is predicted by a structural mechanics model. In this model, nonlinear spring and connector elements are used to model interatomic interactions that follow Morse potential. The role of van der Waals bonds on the critical buckling load of double-layer graphene has been studied. The results show that van der Waals bonds have a greater impact on the critical buckling load in larger aspect ratios. Also, the effect of chirality and graphene sheet dimensions on critical buckling loads for different boundary conditions has been investigated.