Optimum alternate material selection methodology for an aircraft skin

作     者：Fareed AHMAD Mohammed Al AWADH Sahar NOOR Fareed AHMAD;Mohammed Al AWADH;Sahar NOOR

作者机构：Industrial Engineering DepartmentUniversity of Engineering and TechnologyPeshawar 25000Pakistan Department of Industrial EngineeringCollege of EngineeringKing Khalid UniversityAbha 62529Saudi Arabia 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2023年第36卷第7期

页      面：476-488页

核心收录：

学科分类：08[工学] 082503[工学-航空宇航制造工程] 0825[工学-航空宇航科学与技术] 

基　　金：funding this work through the Large Groups Research Project(No.RGP.2/163/43) 

主　　题：Aircraft skin Carbon Fibre Reinforced Plastic(CFRP) Material index Material selection methodology Optimum material 

摘      要：Weight penalty has been a challenge for design engineers of aerospace ***’s high-efficiency combat aircraft undergoes intense stress and strain during flying missions,which require stronger and stiffer materials to retain structural *** metallic materials have been successfully used for the construction of aircraft structures and components,metals still have a low strength-to-weight *** paper aims to develop an alternate optimised material selection methodology to replace the metallic skin of a medium-sized military *** search for the optimum material will result in reduced aircraft weight which will be benefitted by extra payload on the *** selection methodology is comprised of finding design pressure limits on the aircraft skin,and comparison of properties(strength,elastic modulus,shear modulus,etc.)and performance(safety factor,deflection,and stress)of the existing metallic skin with alternate optimised *** comparison was made under aerodynamic pressure,bending force,and twisting *** Fibre Reinforced Polymer/Epoxy(CFRP)Uni-Directional(UD)prepreg(elastic modolus is 209 GPa)was selected as an alternate optimum material to replace the aluminium alloy skin of the aircraft *** selected alternate optimum material resulted in the reduction of aircraft skin weight by 30%.