The fatigue properties of sucker sods are predicted by its static properties with fatigue strength theory and cumulative damage theory according to the measurement result of conventional mechanical properties of sucker sods with different service periods 摘要应用疲劳强度理论和累积损伤理论，利用对使用不同年限抽油杆的常规机械性能的测试结果，由抽油杆的静特性去推测其疲劳特性。
