Impact of Parameter Variation on Damage Tolerance Analysis Estimates

Abstract

This study was conducted to determine the effects of variations in damage tolerance analysis parameters on fatigue crack growth life. The damage tolerance analysis with variations in input parameters was performed at fatigue critical locations in two different aircraft types using probabilistic sensitivity analysis methods. Up to 12 input parameters. The geometry correction factors, stress spectrum scale factor and stress intensity factor values were found to affect the damage tolerance analysis estimates.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2002
Accession Number
ADA412033

Entities

People

  • David H. Wieland
  • Harry Millwater

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Accuracy
  • Air Force Facilities
  • Air Force Research Laboratories
  • Aircrafts
  • Computer Programs
  • Computers
  • Damage Tolerance
  • Department Of Veterans Affairs
  • Fuselages
  • Geometry
  • Materials
  • Measurement
  • Mechanics
  • Monte Carlo Method
  • Probability Distributions
  • Random Variables
  • Stress Intensity Factors

Readers

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