Buckling analysis of plates using an efficient sinusoidal shear deformation theory

Mechanical buckling response of isotropic and orthotropic plates using the two variable refined plate theory is presented in this paper. The takes account transverse shear effects parabolic distribution strains through thickness plate; hence it unnecessary to use correction factors. Governing equations are derived from principle virtual displacements. nonlinear strain-displacement Von Karman relations also taken into consideration. closed-form solution a simply supported rectangular subjected in-plane loading has been obtained by Navier method. Numerical results for present efficient sinusoidal deformation theory, demonstrating its importance accuracy comparison other theories.