西南石油大学学报(自然科学版) ›› 1994, Vol. 16 ›› Issue (3): 65-70.DOI: 10.3863/j.issn.1000-2634.1994.03.011

• 石油机械工程 • 上一篇    下一篇

确定抽油杆疲劳断裂常数的一种实用统计方法

宋瑜 张效羽
  

  1. (石油机械系)
  • 收稿日期:1994-05-13 修回日期:1900-01-01 出版日期:1994-08-20 发布日期:1994-08-20
  • 通讯作者: 宋瑜

A Practical Method to determine the Fatique Cracking Constants of Sucker Rods

Song Yu Zhang Xiao-yu
  

  1. (Department of Mechanical Engineeering)
  • Received:1994-05-13 Revised:1900-01-01 Online:1994-08-20 Published:1994-08-20
  • Contact: Song Yu

摘要: 针对疲劳裂纹扩展性能的统计性质,提出了一种确定抽油杆疾劳断裂材料常数的实用方法,
该方法确定出的常数位与存活率相对应,与其它方法的结论基本一致。对抽油杆疲劳裂纹扩展寿命的分布和常数c与m之问的关系作了初步脸证。

关键词: 抽油杆, 疲劳, 断裂

Abstract: In accordance with the statistic characteristics of fatique cracking, a practical method has been put forward in this paper to deternxine fatique cracking constants of sucker rods.The constants deduced from this method are correlative with sucker rod survival probability,hence corresponding to the results from other metheds. The distribution law of fatique
cracking lifetime of sucker rods and the correlativity betweem C and m are slso tentatively discussed and tested in this paper.

Key words: Fatique cracking lifetime, Sucker rods, Statistic inference

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