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Probabilistic Surface Damage Tolerance Assessment of Aircraft Turbine Rotors

[+] Author Affiliations
Michael P. Enright, Yi-Der Lee, R. Craig McClung, Luc Huyse, Gerald R. Leverant

Southwest Research Institute, San Antonio, TX

Harry R. Millwater

University of Texas at San Antonio, San Antonio, TX

Simeon H. K. Fitch

Mustard Seed Software, San Antonio, TX

Paper No. GT2003-38731, pp. 625-631; 7 pages
  • 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
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3686-X | eISBN: 0-7918-3671-1
  • Copyright © 2003 by ASME


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.

Copyright © 2003 by ASME
Topics: Rotors , Turbines , Aircraft



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