VIBRATION ANALYSIS OF DELAMINATED COMPOSITE PLATES UNDER AXIAL LOAD

The vibration analysis of a delaminated composite plate subjected to t he axial load was performed. The concept of continuous analysis was us ed to model the delaminated composite plate as a plate on a discontinu ous elastic foundation. The elastic adhesive layer between the buckled composite plate and the undeformed substructure working as a foundati on to the plate is represented by linear parallel springs. In general, this model can be used to obtain vibration solutions of the delaminat ed composite plate with general boundary conditions, delaminations wit h multiple number, and various delamination shapes, sizes and location s. The proposed approach is extremely simple, efficient, and accurate, and quite important and useful for various applications.