| 用应变因子和应变量作为控制参量估算构件低周疲劳寿命 |
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| 引用本文： | 况森保.用应变因子和应变量作为控制参量估算构件低周疲劳寿命[J].现代电力,1992(2). |
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| 作者姓名： | 况森保 |
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| 作者单位： | 南昌航空工业学院基础二部 |
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| 摘 要： | 本文用应变因子和应变量作为控制参量,通过实验数据统计处理,拟合出带有存活率、置信度的低周疲劳裂纹扩展速率的解析表达式,用以估算构件的低周疲劳寿命。这种方法可靠、安全、便利,也适用于高周疲劳和裂纹扩展的不同阶段。
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| 关 键 词： | 低周疲劳寿命 估算 应变因子 应变值 控制参数 |
Evaluation of Low Cycle Fatigue Life of Constructional Elements using Strain Factors and Strain Values as Controlling Parameters |
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| Kuang Senbao,nd Basic Course.Evaluation of Low Cycle Fatigue Life of Constructional Elements using Strain Factors and Strain Values as Controlling Parameters[J].Modern Electric Power,1992(2). |
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| Authors: | Kuang Senbao nd Basic Course |
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| Affiliation: | Kuang Senbao,2nd Basic Course Department |
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| Abstract: | In this paper, making use of strain factors and strain values as controlling paramaters, an analytical expression of low cycle fatigue crack propagation rate has been fitted through experi- mental data processing. This expression can be used to evaluate the low cycle fatigue life of a con- structional element. This reliable, safe and convenient method can also be employed properly to deal with the problems on the high cycle fatigue life and the crack propagation on different stages. |
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| Keywords: | low cycle fatigue life evaluation strain factor strain value controlling parameter |
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