THE SHAPE RATIO OF FATIGUE CRACKS ON SUCKER ROD

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Publication date
15 August 2005
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Abstract

采用断裂力学方法研究了抽油杆杆体疲劳裂纹形状比在扩展过程中的变化规律,证明无论初始形状如何,抽油杆杆体疲劳裂纹形状比在扩展过程中趋于同一个稳定数值.通过裂纹扩展实验对直径为15.9mm的抽油杆疲劳裂纹形状比进行了实验测定,发现其裂纹形状比迅速靠近0.78

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    Institute Of Mechanics,Chinese Academy of Sciences

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