A new tool for design and certification of aircraft turbine rotors

This paper summarizes recent enhancements to a probabilistic damage tolerance software code, DARWIN(TM),that can be used or 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.