A parametric study for static deflections of symmetrically laminated rectangular thin plates

Abstract

This study focuses on static deflection analysis of uniformly lateral loaded composite thin rectangular plate with uniformly lateral loads. Stacking sequence of symmetrically laminated quasi-isotropic plates has the sequence of the orientation angles -45°, 0°, +45°, 90°. Boundary conditions were selected as clamped and simply supported hinges at the edges of the plates. The Finite Difference Method (FDM) was used to determine the maximum deflection of the plates based on the governing differential equations of Classical Laminated Plate Theory (CLPT). Effect of the lamination type, boundary condition and aspect ratio (a/b, b/a) on maximum deflections was investigated parametrically, which are of importance in preliminary design phase of composite plates. Results obtained were compared with those of the Finite Element Method (FEM) received from literature. It was found out that the both groups of the results agree on.