This article discusses some specific incidents of uncontained jet engine failures. Such incidents usually involve the failure and disintegration of a rotating disc associated with the fan, compressor, or turbine of the gas turbine. Armed with enormous rotational kinetic energy, the disintegrated parts of a failed disk and its blading can become dangerous flying projectiles. Such was the case of the inflight failure of the Rolls-Royce Trent 900 engine on Qantas Flight QF32 on the morning of November 4, 2010, with 466 passengers and crew onboard. Fortunately, all Flight QF32 passengers and crew were safe and uninjured, after this uncontained engine failure. A similar incident occurred in 1989 with flight DC-10-10, N1819U flight 232 operated by United Airlines. As a result of this incident, the gas turbine industry, airlines, and regulatory agencies have worked diligently over the intervening years to improve disc inspection, crack detection, manufacturing techniques, and fracture mechanics models.
Crack Detection Method of Vibrating Screen Beam Based on Fracture Mechanics
