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本文通过对40车轴钢的疲劳性能进行试验研究,利用升降法测出了疲劳极限,结合成组试验法绘出了P-S-N曲线及修正的Goodman疲劳极限线图.
In this paper, the fatigue properties of 40-axle steel were tested and the fatigue limit was measured by the ascending and descending method. The P-S-N curve and the revised Goodman fatigue limit were plotted in combination with the group test method.