Stress Analysis of Fuselage Stiffened Panel with and Without A Door Cutout

Aircraft is a complex engineering structure. The safety of the structure and weight are two important aspects to be kept in mind while designing aircraft It an uphill task for structural designer bring out safest with minimum weight. current project deals stress analysis fuselage-stiffened panel without large cutout emergency exit door. Cabin pressurization load case, which one critical cases used analysis. When flying above 40000 ft. altitude pressure applied fuselage inside cabin create sea level atmospheric . Stress segment will carried capture global response under pressurization. A skin frame stringers representing features considered local response. An door introduced stiffened analyzed distribution around cutout. concentration factor variation from edge towards free obtained results. Key Words: Transport aircraft, Fuselage, Bulkhead, Orthogonal stiffening, Finite element method, analysis, cutout,