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Volume 25 Issue 5
May  1999
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Journal of Beijing University of Aeronautics and Astronautics  > 1999  >  25(5): 550-553.
Zhang Jianyu, Zhao Libin, Fei Binjunet al. Probability Damage Tolerance Evaluation Method for Multi-Cracked Structure under Pre-corrosion[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(5): 550-553. (in Chinese)
Citation: Zhang Jianyu, Zhao Libin, Fei Binjunet al. Probability Damage Tolerance Evaluation Method for Multi-Cracked Structure under Pre-corrosion[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(5): 550-553. (in Chinese)
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Probability Damage Tolerance Evaluation Method for Multi-Cracked Structure under Pre-corrosion

  • Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics

  • Received Date: 16 Apr 1998
  • Publish Date: 31 May 1999
    Abstract
  • For analyzing the aircraft structural reliability under bad parking conditions, probability damage tolerance evaluation method is established. This method is used to analyze the reliability of multi-crack structure considering the influence of pre-corrosion. This method comprehensively surveys the existed single-crack propagation random model under pre-corrosion conditions using Wei-Landes linear theory and the crack propagation random model with multi-crack structure. Finally, the life-reliability curves are given in an illustrative example using the method as indicated above. Comparing the reliability curves of different SUS(Service Usage Severity), the influence of pre-corrosion and SUS to crack propagation life can be obtained.

     

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