D. Harmon, M. McClure, Pratt & Whitney, East Hartford, CT
For many years, Pratt & Whitney (P&W) has developed and leveraged advanced analytical methods to ensure the health and safety of gas turbine engines. In the last decade, working with the Defense Advanced Research Projects Agency (DARPA) and the United States Air Force (USAF), P&W has extended these capabilities to demonstrate the accuracy of fatigue life design systems using advanced material behavior models. These models result in reduced design system scatter. This approach has been shown to provide a more accurate assessment of remaining life capability for gas turbine engine rotor structures.
Summary: This presentation describes the implementation and validation of a low cycle fatigue design system based on advanced material behavior modeling for use on turbine and compressor rotor structures in gas turbine engines.
