here ∇^2 is Laplacian operator and μ=(e_0 a)² where a is internal characteristic length which depends on lattice parameter, granular size and CeC bonds and e0 is a constant correlated by material type. The parameter e0a is known as small scale. The superscript b indicates bulk part of the DLGS. C is the elastic modulus tensor. The displacement components (u,v,w) for an isotropic circular plate according to the classical plate theory can be written in a general form as