▎ 摘　　要

In this paper, the small scale effect on the buckling analysis of biaxially compressed single-layered graphene sheets (SLGS) is studied. Non local elasticity theory is employed. Based on the principle of virtual work the governing equations are derived for rectangular graphene sheets. Solutions for buckling loads for various boundary conditions are computed using differential quadrature method (DQM). The results are obtained for all possible combination of clamped and simply supported boundary conditions and different values of non-local parameter. It is found that the nonlocal effect is significant in graphene sheets. When compared with uniaxially compressed graphene sheets, the biaxially compressed one show smaller influence of nonlocal effects for the case of smaller graphene sheet size and larger nonlocal parameter values. This difference in behavior between uniaxial and biaxial compressions decreases as the size of the graphene sheets increases.