Fatigue Reliability Method With In-Service Inspections

Details

• Alternative Title:
  Fatigue Reliability Method With In-Service Inspectors
• Creators:
  Fleming, M ; Harkness, H ; Moran, B. ; Belytschko, Ted B.
• Corporate Creators:
  Northwestern University (Evanston, Ill.)
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Technical Center
• Subject/TRT Terms:
  • Airplanes
  • Mathematical models
  • Monte Carlo method
  • Scheduling
  • Failure
• Publication/ Report Number:
  DOT/FAA/CT-94/88
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  The first order reliability method (FORM) has traditionally been applied to probabilistic fatigue analyses for single inspection intervals. Accounting for inspections then requires several sequential FORM analyses and that the random distribution of crack lengths be recharacterized following each inspection. The augmented FORM presented here allows the reliability analyses to span several inspection periods without explicit characterization of the crack length distribution subsequent to each inspection. The method thereby preserves the attractive feature of FORM in that relatively few realizations in the random variable space need to be considered. Examples are given which show that the present methodology gives estimates which are in good agreement with the Monte Carlo simulations and is efficient even for complex components.
• Format:
  PDF
• Funding:
  94-G-011
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93587/dot_93587_DS1.pdf
• File Type:
  [PDF - 803.36 KB]
• Collection(s):
  FAA William J. Hughes Technical Center for Advanced Aerospace
• Main Document Checksum:
  urn:sha-512:9fe390a9bb7bd2e1c70be728568937c20cd4fd619a8037b74bd21b7fbe7f285b0d4950b86d405b077f984cd99bf758c915e50bd5404b57bb2f14cce09ba1f243