Abstract
Fibre reinforced polymer composites have gradually gained wide acceptance in civil engineering applications. Many possibilities of using FRP in the strengthening and construction of concrete structures have been explored. The present paper deals with the modal analysis of glass fibre reinforced laminated composite with epoxy resin. The numerical as well as experimental investigations on the laminated composite plates have been carried out. The finite element formulation for the composite plates using first order and higher order shear deformation theories has been developed using MATLAB. The finite element formulation has also been carried out using the software package ANSYS 14.0. The numerical results have also been validated by conducting experimental investigation. The glass-epoxy laminated composite plates have been manufactured in the laboratory by vacuum infusion method using the vacmobile system. The dynamic analysis has been conducted by using B&K impact hammer, unidirectional piezoelectric CCLD accelerometer (B&K type-4507), photon plus data acquisition system and the modal analysis software (Pulse). The comparison between the numerical and the experimental results is satisfactory.
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