Study on Behavior of Composite Laminated Plates under Free Vibration Analysis

With the advancement of the materials and manufacturing technologies in recent years, the laminated composites have enhanced their applications in modern advanced engineering structures. The finite element method has developed as a very powerful tool for engineering problems, whereas a discretized geometry is obtained through the meshing process. The laminated composites are finding wide spread applications in aerospace, automotive, nuclear reactor vessels, ship building industry etc due to their high specific strength, stiffness, light weight and extended fatigue life. In this study, the behavior of square composite laminated plate under free vibration analysis is investigated. FEAST^SMT 2020 is used for the finite element analysis. Effect of various parameters such as stacking sequence, number of layers and boundary conditions on the natural frequency of composite laminated plates are studied. From the analysis, cross-ply laminate showed better results for clamped boundary condition and angle-ply laminate for simply supported boundary condition. And increase in number of layers showed a steady increase in natural frequency.