Experimental, Numerical and Finite Element Vibration Analysis of Delaminated Composite Plate

Abstract

The vibration of the delaminated composites concerns the structure safety and dynamic behavior of the composite structures as it can be vital in the presence of delamination. In this research paper, the finite element simulations, analytical simulations and the experimental work are combined to analyze the vibration behavior at different delamination size, different stacking sequences and different boundary conditions. The finite element analysis software packages like Ansy and Abqus are used to fetch the vibration response of carbon fiber reinforced polymer composite plate for different boundary conditions, stacking sequences and delamination sizes. Rayleigh-Ritz method was used to derive the governing equations to find the natural frequencies and the results were computed using Matlab tool. It is seen that the natural frequencies of carbon fiber reinforced polymer decreased with an increase in delamination size subjected to all boundary conditions. The higher values of natural frequencies found for all sides clamped boundary conditions. Stacking sequence of (0/90/45/90) showed higher values of natural frequencies subjected to all-sided clamped boundary conditions. Results from this analysis can be considered as a base point for the safe, reliable design of composite structures with and without delamination.

Free vibration analysis of polymer pin-reinforced foam core sandwich composite panels

“…The vibration characteristics of the sandwich panels were numerically studied using an equivalent 2D model and a 3D numerical model and verified by experimental tests. Imran et al 48 analyzed the free vibration behavior of delaminated composite plates using experimental, analytical, and numerical methods. Different delamination sizes, stacking sequences of carbon fiber plates, and boundary conditions were considered in finite element simulations, analytical and experimental studies.…”

Static and free vibration analysis of delaminated composite plates using secant function based shear deformation theory

“…The study explores delamination effects on the natural frequencies of carbon fibre reinforced composite plates using ABAQUS, 25 ANSYS software and analytical results are obtained by using MATLAB and the equations were derived using the Rayleigh-Ritz method for analysis. 26 Imran et al 27 studied the finite element models, numerical simulations and experimental work to analyze the vibration behaviour at different delamination sizes, different stacking sequences and different boundary conditions. Using a hybrid HDMR-based FE algorithm, the impact of delamination on the stochastic free vibrational analysis of composite laminates was investigated.…”

Experimental Investigation of Open-Hole Compression Strength of Carbon Epoxy Composite Material and Determination of Localized Strains Using Digital Image Correlation Technique

“…The biggest application of the fiber-reinforced composites is in the field of military and commercial aircrafts, in which weight reduction is required for higher speeds and increased payloads. Carbon fibers, either alone or with the Kevlar 49 fibers, are widely used as main material in many aero plane wing, fuselage and empennage components [2][3][4][5]. Fiber reinforced epoxies are widely used in the helicopter rotor blades in order to reduce the weight and to tailor the dynamic frequencies of the blade.…”