Abstract
This paper presents the free vibration analysis of fiber reinforced plastic composite plates by using Discrete- Layer Theory. For this purpose, the governing equations are formulated for a cross-ply laminated, simply-supported rectangular plate based Higher-order Shear Deformation Theory (HSDT), Multi-Layer Theory (MLT) and Discrete-Layer Theory (DLT), respectively. In the numerical examples, natural frequencies and specific damping capacities of the plates with different stacking sequences and dimensions are calculated numerically by assuming complex elastic modulus. Finally the applicability of each analytical model for damping analysis is studied by comparing with numerical results obtained respectively.
