Free and forced vibration analysis of delaminated FRP composite plate with a circular hole
by Venkatesan Moorthy; Karthikeyan Marappan
International Journal of Vehicle Noise and Vibration (IJVNV), Vol. 19, No. 3/4, 2023

Abstract: In laminated composites made of fibre-reinforced polymers (FRP), the separation of layers, also known as delamination, is a common cause of failure. In this study, the free and forced vibrations of an FRP composite plate with a circular hole were affected by delamination. To solve the numerical method, the layerwise theory (LWT) using finite element (FEM) methods and simulated delamination using the 'constrained mode' was adopted. The results reveal that the magnitude of delamination has a considerable impact on the natural frequency, stress concentration, and impedance.

Online publication date: Mon, 15-Jan-2024

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