Evaluation of the probability distribution of pitting corrosion fatigue life in aircraft materials

Qingyuan Wang, N. Kawagoishi, Q. Chen, R. M. Pidaparti

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Corrosion and fatigue properties of aircraft materials are known to have a considerable scatter due to the random nature of materials, loading, and environmental conditions. A probabilistic approach for predicting the pitting corrosion fatigue life has been investigated which captures the effect of the interaction of the cyclic load and corrosive environment and all stages of the corrosion fatigue process (i.e. the pit nucleation and growth, pit-crack transition, short- and long-crack propagation). The probabilistic model investigated considers the uncertainties in the initial pit size, corrosion pitting current, and material properties due to the scatter found in the experimental data. Monte Carlo simulations were performed to define the failure probability distribution. Predicted cumulative distribution functions of fatigue life agreed reasonably well with the existing experimental data.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalActa Mechanica Sinica/Lixue Xuebao
Volume19
Issue number3
Publication statusPublished - Jun 1 2003

Fingerprint

Aircraft materials
Corrosion fatigue
Pitting
Probability distributions
Fatigue of materials
Corrosion
Cracks
Cyclic loads
Distribution functions
Crack propagation
Materials properties
Nucleation

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanical Engineering

Cite this

Evaluation of the probability distribution of pitting corrosion fatigue life in aircraft materials. / Wang, Qingyuan; Kawagoishi, N.; Chen, Q.; Pidaparti, R. M.

In: Acta Mechanica Sinica/Lixue Xuebao, Vol. 19, No. 3, 01.06.2003, p. 247-252.

Research output: Contribution to journalArticle

Wang, Qingyuan ; Kawagoishi, N. ; Chen, Q. ; Pidaparti, R. M. / Evaluation of the probability distribution of pitting corrosion fatigue life in aircraft materials. In: Acta Mechanica Sinica/Lixue Xuebao. 2003 ; Vol. 19, No. 3. pp. 247-252.
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