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Volume 39 Issue 1
Jan.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  (1): 27-30,41.
WANG Mao-lu, LI Shao-hong, MAO Shi-yiet al. Target Recognition Method by Combination of Neural Networks with Evidence Theory[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(5): 536-539. (in Chinese)
Citation: Zhang Jianyu, Yuan Jun, Shi Xinhonget al. Effect of pre-corrosion on the MSD occurrence probability[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 27-30,41. (in Chinese)
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Effect of pre-corrosion on the MSD occurrence probability

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 08 Nov 2011
  • Publish Date: 31 Jan 2013
    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 estalished 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.

     

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    • References(6)
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    Draft FAA Advisory Circular No 120-YY Widespread fatigue damage on metallic structure as originally released in 2006 for public comment[S]
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    Federal Aviation Administration. Ageing airplane program:widespread fatigue damage,final rule [R]. FAA,14CFR Part 25,26, 121,2010
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    Zhang Jianyu,Bao Rui,Zhang Xiang,et al. A probabilistic estimation method of multiple site damage occurrences for aircraft structures [J]. Procedia Engineering,2010,2(1):1115-1124
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    高镇同. 疲劳应用统计学[M]. 北京:国防工业出版社,1986 Gao Zhentong. Fatigue applied statistics [M]. Beijing:National Defense Industry Press,1986(in Chinese)
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    贺小帆,刘文珽,王忠波,等. 疲劳寿命预腐蚀影响系数曲线通用性研究[J]. 机械强度,2004,26(1):110-104 He Xiaofan,Liu Wenting,Wang Zhongbo,et al. Research on the generality of the pre-corrosion influence coefficient curve of fatigue life [J]. Journal of Mechanical Strength,2004,26(1):110104(in Chinese)
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    赵学峰,王富永,赵海军. 预腐蚀疲劳寿命影响系数及S-N曲线研究[J]. 机械强度,2008,30(6):977-981 Zhao Xuefeng,Wang Fuyong,Zhao Haijun. Research on the influence coefficient and S-N curve for the pre-corrosion fatigue life[J]. Journal of Mechanical Strength,2008,30(6):977-981(in Chinese)
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