| 45钢高低周复合疲劳寿命的试验研究 |
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| 引用本文： | 王时越,迟珊.45钢高低周复合疲劳寿命的试验研究[J].云南工业大学学报,1998,14(1):65-67,87. |
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| 作者姓名： | 王时越 迟珊 |
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| 作者单位： | 云南工业大学 |
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| 基金项目： | 云南省科委应用基础研究基金 |
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| 摘 要： | 本文以４５钢为例，系统研究了高低周复中载下的复合循环应力比，高周循环次数，高周循环频此对复合疲劳寿命的影响，并建立了复合循环应力比和高周循环次数与复合疲劳寿命之间的关系式，结果表明：复合疲劳寿命随应力比和循环次数的增加而明显降低，高周循环频率对复合疲劳寿命没有影响。
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| 关 键 词： | 复合疲劳 复合疲劳寿命 45钢 试验 |
Experimental Investigation of High-Low Cycle ComplexFatigue Life of 45 Steel |
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| Authors: | Wang Shiyue Chi Shan Shao Jianfei Lin Mojun |
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| Abstract: | The effects of cycle stress ratio, high cycle numbers and high cycle frequency on complex fatigue life under high-low cycle complex fatigue are investigated in 45 steel. The relationships of cycle stress ratio to complex fatigue life and that of high cycle numbers to complex fatigue are established. The results show that complex fatigue life is obviously reduced by the cycle stress ratio and cycle numbers raising. The high cycle frequency can affect little on complex fatigue life. |
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| Keywords: | High-low cycle complex fatigue Complex fatigue life Complex fatigue parameter |
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