This paper describes some of the new surface damage capabilities in DARWIN™, a probabilistic fracture mechanics software code developed to evaluate the risk of fracture associated with aircraft jet engine titanium rotors/disks. An initial framework is presented in which a graphical user interface (GUI) is used to explicitly define the stresses and temperatures at the crack location for several crack geometries. A summary of the approach used to develop new stress intensity factor solutions for these geometries is also presented, including selected validation results.
Probabilistic Surface Damage Tolerance Assessment of Aircraft Turbine Rotors
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Enright, MP, Lee, Y, McClung, RC, Huyse, L, Leverant, GR, Millwater, HR, & Fitch, SHK. "Probabilistic Surface Damage Tolerance Assessment of Aircraft Turbine Rotors." Proceedings of the ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. Volume 3: Turbo Expo 2003. Atlanta, Georgia, USA. June 16–19, 2003. pp. 625-631. ASME. https://doi.org/10.1115/GT2003-38731
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