Analysis of Crack Growth Behavior of Fan Rotor Blade Under Centrifugal Force

This paper presents results of crack growth analysis of blade subjected to resonant centrifugal force. Rotor blades are the key rotating components of an aircraft turbine, which play an important role in the task of energy conversion. This includes compressor rotor blades and turbo rotor blades. Since they are the thin-form components moving in high-speed rotation, under the severe load conditions in complex work environments, rotor blades are one of the components of the highest failure rates in aircraft turbines. Meanwhile, with the development of aviation industry, the thrust-weight ratio (TWR) of aircraft turbines has become higher and higher. The stress level of rotor blades is greatly increasing as well. Moreover, their safety plays an important role in the aircraft turbine security. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.