利用显示动力学有限元分析方法，模拟了波纹轨腰钢轨的轧制过程。
The rolling process of corrugated waist rail is simulated by explicit dynamic FEM.
介绍一种新型结构钢轨——波纹轨腰钢轨，这种钢轨的轨腰呈波纹板状。
A new structural rail, corrugated waist rail is introduced. The waist of this rail is like corrugated plate.
断口分析表明所研究的试件均为疲劳断裂， 裂纹源位于焊瘤趾部或焊瘤内部靠近轨腰表面处。
The fracture analyses revealed that the fractures are caused by fatigue, and the cracks initiated from the inclusions and voids at the toe of the fin for the gas-pressure we…
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