| 确定抽油杆疲劳断裂常数的一种实用统计方法 |
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| 引用本文： | 宋瑜,张效羽.确定抽油杆疲劳断裂常数的一种实用统计方法[J].西南石油大学学报（自然科学版）,1994,16(3):65-70. |
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| 作者姓名： | 宋瑜 张效羽 |
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| 作者单位： | (石油机械系) |
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| 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。
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| 关 键 词： | 抽油杆 疲劳 断裂 |
| 收稿时间： | 1994-05-13 |
A Practical Method to determine the Fatique Cracking Constants of Sucker Rods |
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| Song Yu,Zhang Xiao-yu.A Practical Method to determine the Fatique Cracking Constants of Sucker Rods[J].Journal of Southwest Petroleum University(Seience & Technology Edition),1994,16(3):65-70. |
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| Authors: | Song Yu Zhang Xiao-yu |
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| Institution: | (Department of Mechanical Engineeering) |
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| 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 fatiquecracking lifetime of sucker rods and the correlativity betweem C and m are slso tentatively discussed and tested in this paper. |
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| Keywords: | Fatique cracking lifetime Sucker rods Statistic inference |
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