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| Determination of Calendar Life of a Certain Aircraft Structure Based on Environmental Corrosion Damage |
| Received:March 12, 2018 Revised:May 25, 2018 |
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| DOI：10.7643/ issn.1672-9242.2018.05.017 |
| KeyWord:calendar life corrosion tolerance T-H curve |
| Author | Institution |
| YANG Xiao-hua |
Qingdao Branch of Naval Aviation University, Qingdao , China |
| GU Zhi-yue |
Qingdao Branch of Naval Aviation University, Qingdao , China |
| ZHANG Tai-Feng |
Qingdao Branch of Naval Aviation University, Qingdao , China |
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| Abstract: |
| Objective To determine calendar life of an aircraft structure with corrosion damage in environment region based on corrosion perspective. Methods The time curve (T-H curve) of 2A12-T3 corrosion to arbitrary damage value of aluminum 2A12-T3 alloy materials commonly used in aircraft structures under different temperature and humidity was determined by experiment, and the calendar life of a certain aircraft was determined according to its service environment spectrum and the corresponding corrosion damage tolerance Dc. Results The T-H curve under different humidity was determined by experiment. The environment spectrum of temperature and humidity in Lingshui Airport was obtained by statistics. The calculated result was reasonable. Conclusion The model can get the calendar life of aircraft structure in corrosive environment and the time curve (T-H curve) for aluminum alloy corrosion damage of 2A12-T3 is universal. |
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