| 经锤击后的16Mn钢对焊件的疲劳寿命估算 |
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| 引用本文： | 李臻,郑修麟. 经锤击后的16Mn钢对焊件的疲劳寿命估算[J]. 焊接学报, 1997, 18(3): 151-158 |
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| 作者姓名： | 李臻 郑修麟 |
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| 作者单位： | 西安石油学院(李臻)，西安西北工业大学(郑修麟) |
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| 摘 要： | 试验研究了经锤击的１６Ｍｎ钢对焊接头的带存活率的疲劳寿命估算模。试验结果表明，在同一当量应力水平下，１６Ｍｎ钢经锤击的焊接头的疲劳寿命从对数正态分布。
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| 关 键 词： | 锤击 存活率 疲劳寿命 对焊 接头 锰钢 |
| 收稿时间： | 1996-05-02 |
| 修稿时间： | 1997-06-03 |
Prediction of Fatigue Life for Peened Butt Welds of 16Mn Steel |
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| Li Zhen and Zheng Xiulin. Prediction of Fatigue Life for Peened Butt Welds of 16Mn Steel[J]. Transactions of The China Welding Institution, 1997, 18(3): 151-158 |
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| Authors: | Li Zhen and Zheng Xiulin |
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| Affiliation: | Li Zhen (Xi'an Petroleum Institute) Zheng Xiulin (Northwestern Polytechnical University) |
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| Abstract: | The fatigue life prediction model with given survivability for peened butt weld of 16Mn steel is investigated. It is shown by the test results that at a given equivalent stress amplitude, the fatigue life of peened butt welds of 16Mn steel follows the lognormal distribution. The expressions of S-N curve and P-S-N curve are given in this paper. Furthermore, the method of fatigue life prediction with given survivability under variable amplitude has been given in this paper. The life prediction results have been substantiated by the tests. It is pointed out that the above-mentioned method can be taken as a new model of fatigue reliability evaluation for weldments. |
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| Keywords: | hammer peening survivability fatigue life prediction |
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