An Evaluation of a Method of Reconstituting Fatigue Loading from Rainflow Counting

Abstract

On-line Rainflow analyses of load histories in structures may be used to reconstitute fatigue load sequences either for cycle-by-cycle damage analysis or for fatigue testing. This Report describes work which used Rainflow counting and reversed Rainflow reconstitution to create 'extreme' sequences which have the same Rainflow count as the original sequence but which were intended to maximise and to minimise the rate at which fatigue damage accumulated. In order to achieve efficient management and adequate safety in the operation of large fleets of aircraft it is important to have accurate records of load histories for individual aircraft to aid the detection and control of fatigue damage. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA222664

Entities

People

  • B. H. Perrett

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Cold Working
  • Counting Methods
  • Crack Propagation
  • Cracks
  • Failure Mode And Effect Analysis
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Load Monitoring
  • Materials
  • Mechanics
  • Peak Values
  • Residual Stress
  • Sensitivity
  • Stresses
  • Test And Evaluation

Readers

  • Maritime Combat Support and Expeditionary Logistics.
  • Structural Health Monitoring of Composite Structures.