an analytical solution to the bending problem of micro-plate using a new displacement potential function

In this paper to include small scale effect, the augmented love displacement potential functions (dpf) are developed for isotropic micro or nano scales medium based on couple stress theory. by substituting the new dpf in equilibrium equations, governing equations are simplified to two linear partial differential equations of sixth and fourth order. then the governing differential equations are solved for simply supported rectangular plate using the separation of variable method with satisfying exact boundary conditions without any simplification assumptions. displacements, bending and torsional moments of rectangular plate are obtained for different length scale parameters, aspect and poisson’s ratios. the obtained results are compared with other studies which show excellent agreement between them.