PROBABILITY AND SCATTER IN CUMULATIVE FATIGUE DAMAGE

Abstract

This memorandum presents a study of the problems in aircraft design caused by scatter in fatigue life. Lives of similar test specimens under identical loading vary so greatly that fatigue is well know as a highly unpredictable phenomenon. Although attempts to predict the fatigue life of existing aircraft are greatly complicated by scatter, this unpredictability is a less severe problem in design, when the decision is made on how mucg material to put into a structure in order to provide satisfactory life.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1963
Accession Number
AD0426478

Entities

People

  • Lloyd Kaechele

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Agreements
  • Air Force
  • Aircrafts
  • Airframes
  • Aluminum
  • Aluminum Alloys
  • Bending Moments
  • Computations
  • Cyclic Loads
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Materials
  • Normal Distribution
  • Probability
  • Probability Distributions
  • Tensile Strength
  • United States

Readers

  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design
  • Theoretical Analysis.