An investigation on the GFRP composite radome; enhancement of the tensile strength and dielectric constant of the samples

چکیده مقاله

A composite radome is a durable structure to protect telecommunication radar antennas against mechanical and environmental factors. The aim of this research is to investigate and optimize the mechanical (tensile strength) and electromagnetic (dielectric constant) properties of GFRP composite radome. For this purpose, the parameters of the fibers type (E series, D series and E/D series), the resin type (epoxy and polyester) and the composite manufacturing method (manual layering, vacuum bag and vacuum infusion) have been considered to optimize the mechanical and electromagnetic properties, and final cost of the composite radome. Taguchi method and the gray relational grade technique have been used to achieve the optimal conditions of the parameters. It was observed that the values of tensile strength, dielectric constant and final cost of the composite radome can be improved simultaneously using D series glass fibers, epoxy resin and vacuum bag manufacturing method.