ABSTRACT
This chapter provides an exhaustive review of research works on aero engine combustor design, failure investigation, and the related technologies. By the 1960s, the annular layout of the combustor casing was firmly established as the automatic choice for all new aircraft engines. Modern gas turbine combustors are made of high-temperature alloys, employ effusion cooling, and are protected by a thermal barrier coating (TBC). Fatigue is a major problem in many of the modern machines and devices people use today, such as airplanes, automobiles, locomotives, bridges, and many mechanical machines. In the low-cycle fatigue (LCF) regime, most of the fatigue life is spent on crack propagation. Cycle counting is used to summarize lengthy, irregular load-versus-time histories by providing the number of times cycles of various amplitudes occur. In fatigue analysis, a cycle is the load variation from the minimum to the maximum and then to the minimum load.
