Evaluation of Structural Reliability Analysis Procedures as Applied to a Fighter Aircraft

Abstract

Structural reliability analysis procedures were evaluated for estimating the variability in fighter aircraft fatigue performance. The expected magnitude of this variability was determined based on an investigation of scatter in fatigue test results for aluminum structures. This study revealed that (1) the scatter for spectrum fatigue tests is considerably less than for constant amplitude fatigue tests; (2) the Weibull probability distribution provides a better fit of the spectrum data than the log-normal; and (3) the Weibull shape parameter alpha is 5.27.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1973
Accession Number
AD0919145

Entities

People

  • A. E. Siegel
  • L. F. Impellizzeri
  • R. A. Mcginnis

Organizations

  • McDonnell Aircraft Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Commercial Aircraft
  • Fabrication
  • Fatigue Tests (Mechanics)
  • Fighter Aircraft
  • Materials
  • Military Aircraft
  • Plastic Explosives
  • Probability Distributions
  • Random Variables
  • Reliability
  • Statistical Analysis
  • Structural Components
  • Test And Evaluation

Readers

  • Materials Science (Mechanical Engineering).
  • Regression Analysis.