首次提出了危险角度及底厚系数概念，并给出了它们之间的关系曲线。文末进行了实例分析。

This paper puts forward conceptions of dangerous Angle and bottom-thickness coefficient for the first time, gives out relation curves between them and makes analysis with actual examples.

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根据疲劳寿命预测理论，建立了某机车车轮受力危险点在不同路况下的疲劳寿命曲线。

Based on fatigue life prediction theory, fatigue life curve of dangerous points of wheels under force of a certain locomotive was established.

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同时，实验研究获得的钨合金壳体危险截面处应变—时间历程曲线，既可以为壳体设计提供理论支撑，又为钨合金壳体侵彻混凝土靶板的侵彻模型和数值仿真建立了验证标准。

The strain history achieved may provide a base in shell design and verify theoretical models and numerical simulations of tungsten alloy shell impacting and penetrating normally into concrete targets.

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