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Study on DFR method under corrosive environment for fatigue analysis

  • Jianyu Zhang*
  • , Rui Bao
  • , Bo Chen
  • , Binjun Fei
  • *Corresponding author for this work
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

Via transfer the influence of corrosive environment on fatigue life to that on detail fatigue rating equivalently, the DFR (detail fatigue rating) method under corrosive environment for fatigue analysis was established. The relation between the ratio of fatigue life under corrosive and normal environment and the corrosive convert coefficient of DFR was obtained by the standard S-N curve equation, thus the method for determining the convert coefficient was presented, in which the parameter c was shown to have little influence on its precision. Based on the assumption that the influence of pre-corrosion on ground and the influence of corrosion in flight are independent, a method for separation pre-corrosion and corrosion fatigue was proposed.

Original languageEnglish
Pages (from-to)547-550
Number of pages4
JournalBeijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume30
Issue number6
StatePublished - Jun 2004

Keywords

  • Corrosion fatigue
  • Detail fatigue rating
  • Fatigue life

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