Basing on fluctuation method fatigue test existing mean tensile stress and stress ratio r=0.3 were taken on corner joint to investigate the influence, which the mean tensile stress acts on fatigue limit amplitude.
为了研究平均应力对铝合金焊接接头疲劳极限幅值的影响,文中采用升降法对铝合金角接接头进行了存在平均拉应力、应力比r=0.3的疲劳试验。
参考来源 - 高速列车铝合金焊接接头疲劳性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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