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 language | English |
|---|---|
| Pages (from-to) | 27-30+41 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 39 |
| Issue number | 1 |
| State | Published - Jan 2013 |
Keywords
- Influence coefficient
- Multiple side damage (MSD)
- Occurrence probability
- Pre-corrosion
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