航空学报 > 1995, Vol. 16 Issue (2): 66-69

结构破坏危险率与使用寿命的关系

邱瑾, 薛景川   

  1. 飞机结构强度研究所, 西安, 710061
  • 收稿日期:1994-04-11 修回日期:1994-07-30 出版日期:1995-04-25 发布日期:1995-04-25

THE RELATION BETWEEN A STRUCTURAL RISK OF FAILURE AND SERVICE LIFE

Qiu Jin, Xue Jingchuan   

  1. Airoraft Structure Strength Research Institute,Xi'an,710061
  • Received:1994-04-11 Revised:1994-07-30 Online:1995-04-25 Published:1995-04-25

摘要: 在结构疲劳寿命服从双参数Weibul分布假设的基础上,通过结构细节疲劳额定值的概念给出了结构破坏危险率与使用寿命的关系式,并通过实例计算得出了破坏危险率-寿命曲线。

关键词: 统计分析, 断裂, 疲劳

Abstract: On the basis of the hypothesis that a structural fatigue life accord with the two parameters Weibull distribution the ralationship between the risk of structural failure expressed as the structural detail fatigue rating and the service life are determined.To cite as an example,the calculating curve of the failure risk verus the service life is obtained.

Key words: statistical analysis, fracture, fat igue

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