MODAL ANALYSIS AND STUDY OF CRACK ON HYBRID LAMINATED COMPOSITE PLATE

This study investigates the modal analysis of hybrid laminated sandwich composite plate. The laminated composite structures are being increasingly used in automotive, aerospace, marine and high-end applications. Composite materials have unique properties like high strength to weight ratio, non-corrosive, good surface finish etc. Properties of composite material can be tailored as per requirement. The finite element model of the laminated composite sandwich plate is developed by using ANSYS and ABAQUS software. The developed finite element models are validated with the available literature. Various parametric studies are carried out in terms of natural frequencies, mode shapes and crack propagation to describe the effectiveness of laminated composite sandwich plate. The results suggest that the fiber angle orientation, stacking sequence of laminates and the boundary conditions are influencing the natural frequencies and mode shapes of the laminated composite sandwich plate. Also, comparative studies are done in terms of natural frequencies, stresses obtained between GFRP, CFRP, Boron and Kevlar.