ICA - Incorporate Damage Tolerance Assessment into the Safe Life Rotor Design Process

The overall objective of this work is to develop advanced damage tolerance methods and data that can be used to reduce the risk of rotor failure and to provide the basis for new/revised engine certification standards and Advisory Circulars. This involves enhancing the characterization of nickel and titanium anomaly cracking behavior, improving the anomaly distribution curves, and developing advanced analytical capabilities for the probabilistic rotor design and life management code known as DARWIN. The absence of accurate crack growth data from both surface and subsurface anomalies seriously affects the accuracy of the DARWIN code. Development of advanced analytical methods to model stress/strain levels in all areas of complex geometry rotors is also important to the accuracy and reliability of the code. These problems have not been addressed previously due to the nature of the "Safe Life" prediction methodology.

  • Supplemental Notes:
    • Program Information: Propulsion and Fuel Systems


  • English


  • Status: Active
  • Sponsor Organizations:

    Federal Aviation Administration

    New England Regional Office
    12 New England Executive Park
    Burlington, MA    01803
  • Project Managers:

    Mouzakis, Tim

  • Performing Organizations:

    Federal Aviation Administration

    Information Systems & Flight Technology Team
    William J. Hughes Technical Center, Atlantic City International Airport
    Atlantic City, NJ    08405
  • Principal Investigators:

    Wilson, Joseph

  • Start Date: 20120510
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 30635

Subject/Index Terms

Filing Info

  • Accession Number: 01465290
  • Record Type: Research project
  • Source Agency: Department of Transportation
  • Files: RIP, USDOT
  • Created Date: Jan 3 2013 2:58PM