Modelling and Analysis of SUKHOI FGFA and Introduction of composite materials to SUKHOI FGFA

Abstract

This paper talks about the modal and flow analysis done on the aircraft with composite materials. We are using steel, carbon fibre and Bucky paper. This will give a brief description and contrast between the three composite materials on sukhoi fgfa. Carbon fibre reinforced composites (CFRPs) are light weight, have high strength and modulus, which make them qualified candidates for numerous automotive and aerospace industries. However one of the major technical challenges for these materials in airplane structures, in terms of aircraft safety and durability, is lightning strike protection (LSP).This is due to the inadequate electrical properties of normal CFRPs. Although, CFRPs have relatively good in-plane electrical conductivity compared to neat epoxy resin, they lack metal-like high conductivity for LSP applications. To solve this issue, metal materials such as copper or aluminium mesh are attached to carbon fibre composites in the aircraft structure. This solution is not satisfactory due to heavy weight of metals and the occurrence of galvanic corrosion between metals and CFRPs. On other hand carbon nano tubes (CNTs) possess great potential for enhancing high-performance and multifunctional properties of composites and exhibit incredible mechanical, electrical and thermal properties, which can replace the metal mesh materials.