Statistics show that more than 60% of service failures in aircraft components occur due to fatigue. This chapter investigates fatigue failure in aircraft materials. First, fatigue concepts are briefly reviewed, and then parameters affecting fatigue failures are discussed.Khalifeh, Alireza...
In this chapter, two case studies about failure of aircraft structural components are discussed. The first case study describes the fracture mechanism in a Cessna-185 aircraft propeller blade due to fatigue crack propagation induced by foreign object damage. The second case study explains the fatigue...
Irvin James F.Quinn JosephSpringer USJournal of Failure Analysis and PreventionKumar, A.; Ensha, S.; Irvin, J.F.; Quinn, J. Liquid Metal Corrosion Fatigue (LMCF) Failure of Aircraft Engine Turbine Blades. J. Fail. Anal. Prev. 2018, 18, 939-947. [CrossRef]...
The mechanical failure in any of the piston engine components, especially concerning fatigue failure of the cylinder head (CH) made of an aluminum-casting alloy may have serious or fatal consequences to the safety of the crew and the aircraft. Therefore, the aim of this study is to identify ...
2. Potential sources of failures Aircraft is one of the most complex engineering systems that have been developed. Failure in any of the structural/engine components jeopardizes the safety of the aircraft. Accidents caused due to failure in aircraft structure are very few. It is the failure of...
Acrylic-polycarbonate laminated aircraft canopy.Voids on the front surface of PMMA layer due to the aerodynamic heat.Fatigue growth of macro-cracks and one main crack due to the repetitive thermal stresses.Fatigue fracture by lateral working load while the aircraft was maneuvering.关键词: Fatigue-ind...
Other examples, such as the flexure stresses produced in aircraft wings and in undercarriages during ground taxi-ing, do, however, emphasize that the stress system does not necessarily vary in a regular sinusoidal manner. The series of aircraft disasters attributed to pressurized-cabin failures is ...
The largest single cause of component failures in modern military aircraft gas turbine engines is high cycle fatigue (HCF), exceeding the number attributed to low cycle fatigue, corrosion, overstress, manufacturing processes, mechanical damage, and materials. The HCF problem is a pervasive one, affe...
Compressive stresses are introduced intentionally in landing gears of aircrafts by shot peening for improving the resistance to fatigue damage. The intensity of compressive stresses on the surface reduces gradually with number of landings, which is harmful to the structural integrity of the landing gears...
Maximizing the Fatigue Crack Response in Surface Eddy Current Inspections of Aircraft Structures The fatigue-failure problem first gained interest during the industrial development age, due to the nature of repeated loading on machine components.The focus was then directed, during design stages, to the...