Fatigue Analysis of Forward Fuselage under Dynamic Conditions

The fuselage is one of the main component in aircraft to carry payload and passenger. The fuselage enclosed with high weight structure. The fuselage is hollow tube which holds all parts of the airplane together. The shape of the fuselage based on the mission of the aircraft. A supersonic fighter plane will be having streamlined fuselage to reduce the drag force enclosed with high speed flight and similarly the shape vary depend on the velocity. The design of fuselage is very complicated for designers because it takes about 60% of total weight of the aircraft and the contribution of fuselage towards performance and the stability is very decent. This paper investigates the fatigue behavior of the fuselage under dynamic equilibrium state made of both aluminum alloy and Kevlar composite. Those results can be applied to optimize the fuselage structure thereby the better structure can be made.