This thesis evaluated the fatigue life of typical welded bogie applying the result of the fatigue experiment of the welded sample in super-high life.
应用焊接子样超长寿命的疲劳试验结果，本文评估了典型焊接构架的疲劳寿命。
The paper discusses the reasons why the welded test sample loses its efficiency and suggests how to reduce possibilities of such failure.
本文分析了薄焊接试板弯曲试样失效的原因，并对减少失效的可能性作出了阐述。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
The striation spacing in heat affect zone and welded seam samples was wider than that in matrix sample, this shows that fatigue crack propagation...
焊缝区和热影响区试样的辉纹间距较基体区的大，说明裂纹扩展速率快，焊缝和热影响区的抗裂纹扩展性较基体差。
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