航空学报 > 1994, Vol. 15 Issue (3): 366-371

应力比R为常数时细节疲劳额定值(DFR)与其它疲劳参数之间关系研究

董登科, 薛景川, 杨玉恭   

  1. 西安86号信箱,西安,710061
  • 收稿日期:1993-07-06 修回日期:1993-10-05 出版日期:1994-03-25 发布日期:1994-03-25

RESEARCH ON THE RELATIONSHIPS BETWEEN DFR AND OTHER FATIGUE PARAMETERS UNDER CONSTANT STRESS RATIOS

Dong Dengke, Xue Jingchuan, Yang Yugon   

  1. Box 86 of Xi'an,Xi'an,710061
  • Received:1993-07-06 Revised:1993-10-05 Online:1994-03-25 Published:1994-03-25

摘要: 为了满足概率疲劳分析的需要,推导出了应力比R等于常数时细节疲劳额定值(DFR)与其它疲劳参数之间的解析表达式,从而使S-N曲线解析化。通过焊接件的疲劳试验和分析证明了其有效性和实用性。

关键词: 概率-疲劳, 疲劳试验, 焊接强度

Abstract: o satisfy the needs of probabilistic fatigue analysis,on certain assumption conditions,the relationships between Detail Fatigue Rating(DFR)and other fatigue parameters under con- stant stress ratios are obtained. Analysis of the fatigue test results of welding specimens shows that the relationships are correct.

Key words: probability-fatigue, fatigue tests, weld strengths

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