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Effect of pre-corrosion on the MSD occurrence probability

  • Jianyu Zhang*
  • , Jun Yuan
  • , Xinhong Shi
  • *Corresponding author for this work
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

Aimed at the multiple side damage (MSD) existed in the typical aircraft structural components, the occurrence probability of multiple side damage was investigated. The condition of pre-corrosion was dipping in 3.5%NaCl solution for 240 hours. The influence coefficient C was obtained based on the pre-corrosion and the normal fatigue experiment of 7B04-T74 aluminum alloy single detail specimens. The relationship could be established between the MSD occurrence probability under the specified pre-corrosion and the MSD occurrence probability under the normal fatigue condition. The formula of MSD occurrence probability after per-corrosion was gained. The calculation and experimentation results were compared. Results show that the new formula can compute the MSD occurrence probability after pre-corrosion commendably.

Original languageEnglish
Pages (from-to)27-30+41
JournalBeijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume39
Issue number1
StatePublished - Jan 2013

Keywords

  • Influence coefficient
  • Multiple side damage (MSD)
  • Occurrence probability
  • Pre-corrosion

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