钢材料焊接接头p-S-N曲线试验研究

p-S-N Curve for Two Different Steel Welded Steel Joints

制备两种不同形式和不同钢材料的焊接接头疲劳试验件,进行等幅疲劳试验。通过试验寿命数据的统计分析,得到了存活率分别为50%、99%、99.9%、99.99%的p-S-N曲线,为寿命评估提供必要的数据基础。

Two different welded joints were machined for different steel.They were carried out fatigue testing based on equivalent amplitude spectrum.The testing fatigue life data is calculated by statistics method and p-S-N curves are obtained.