| 中碳钢三维高温低周疲劳寿命评价 |
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| 引用本文： | 郭成壁,何雪宏.中碳钢三维高温低周疲劳寿命评价[J].大连理工大学学报,1992,32(2):193-200. |
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| 作者姓名： | 郭成壁 何雪宏 |
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| 作者单位： | 大连理工大学动力工程系
(郭成璧，何雪宏，梁莎莉，安青军)，大连理工大学动力工程系(张文孝) |
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| 摘 要： | 通过试验与计算，用当量应变法、能量法和损伤法讨论了三维交变应力 作用下高温低周疲劳寿命的评价方法，并推出了相应的寿命评价公式。解析 值与实测值的对比结果令人满意，说明此三种寿命评价法可直接用于实际装 置在复杂应力状态下的高温低周疲劳寿命预测。
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| 关 键 词： | 疲劳寿命 中碳钢 当量应力 |
Estimation of high temperature and low cycle fatigue life of medium carbon steels under three dimensional stress state |
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| Guo Chengbi,Xe Xiehong,Liang Shali,An Qingjun,Zhang Wenxiao.Estimation of high temperature and low cycle fatigue life of medium carbon steels under three dimensional stress state[J].Journal of Dalian University of Technology,1992,32(2):193-200. |
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| Authors: | Guo Chengbi Xe Xiehong Liang Shali An Qingjun Zhang Wenxiao |
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| Abstract: | The estimation of high temperature and low cycle fatigue life under three dimensional stress state is discussed with equivalent strain method, energy method and damage method, and correspondent life estimating formulas are proposed. The results of the comparison between computing values and experimental values are satisfactory. That means these three life estimating methods can be used directly to the prediction of high temperature and low cycle fatigue life for practical units under complicated stress state. |
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| Keywords: | estimation of fatigue life medium carbon steels equivalent stress/high temperature low cycle fatigue complicated stress |
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