New Method of Determinning the Threshold Value by Computer Control
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摘要: 闡述了用新型AMSLER高頻疲勞試驗機,結合計算機控制測定材料門檻值△Kth的新方法.該方法通過在恒應力比R下疲勞一定周次后,頻率下降不超過某一特定值,從而得到門檻值△Kth.Abstract: A new method of determinning the threshold value △Kth on a new type AMSLER fatigue test system by computer control is given. By using this method, △Kth can be obtained after the material has been fatigued a given cycles under constant stress ratio R, on condition that the decreasing of frequency is less than a certain value.
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Key words:
- computer control /
- threshold value /
- frequency /
- crack
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