摘要
针对疲劳裂纹扩展性能的统计性质，提出了一种用定抽油杆疲劳断裂材料常数的实用方法，该方法确定出的常数值与存活率相对应，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之间的关系作了初步验证。
In accordance with the statistic characteristics of fatique cracking, a practical methodhas been put forward in this paper to determine 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 fatiquecracking lifetime of sucker rods and the correlativity betweem C and m are slso tentativelydiscussed and tested in this paper.
出处
《西南石油学院学报》
CSCD
1994年第3期65-70,共6页
Journal of Southwest Petroleum Institute
关键词
抽油杆
疲劳
断裂
统计方法
Fatique cracking lifetime
Sucker rods
Statistic inference
