A New Tool for Design and Certification of Aircraft Turbine Rotors

摘要

This paper summarizes recent enhancements to a probabilistic damage tolerance software code, DARWIN~(TM), that can be used for design certification of aircraft jet engine titanium disks/rotors that may contain melt-related anomalies. Evaluations of DARWIN~(TM) by engine manufacturers are also discussed, including comparisons with existing codes for accuracy and time efficiency. In addition, relevant test results, including various fatigue tests on material containing melt-related anomalies, are summarized.