| 7050-T7451铝合金试件的疲劳安全寿命估算 |
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| 引用本文： | 任旭东,姜大伟,张永康,张田,罗新民.7050-T7451铝合金试件的疲劳安全寿命估算[J].航空动力学报,2011,26(1):185-190. |
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| 作者姓名： | 任旭东 姜大伟 张永康 张田 罗新民 |
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| 作者单位： | 江苏大学,机械工程学院,江苏省光子制造科学与技术重点实验室,镇江,212013 |
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| 基金项目： | 国家自然科学基金，中国博士后基金，江苏大学高级人才启动基金 |
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| 摘 要： | 对7050-T7451铝合金试件的三类不同试样激光冲击强化处理,研究其7组疲劳寿命值,并对铝合金试件的疲劳试验结果分别用单侧容限因数法和二维Weibull分布法进行疲劳安全寿命估算及比较.结果表明,激光冲击强化作用大大提高了铝合金试样的疲劳寿命;在考虑置信度和可靠度的前提下,单侧容限因数法能得到一个确切的疲劳安全寿命估...
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| 关 键 词： | 疲劳安全寿命 二维Weibull分布法 激光冲击强化 单侧容限因数法 7050-T7451铝合金 |
| 收稿时间： | 2009/11/30 0:00:00 |
| 修稿时间： | 2/5/2010 12:00:00 AM |
Estimation of fatigue safe lives of 7050-T7451 aluminum alloy samples |
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| REN Xu-dong,JIANG Da-wei,ZHANG Yong-kang,ZHANG Tian and LUO Xin-min.Estimation of fatigue safe lives of 7050-T7451 aluminum alloy samples[J].Journal of Aerospace Power,2011,26(1):185-190. |
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| Authors: | REN Xu-dong JIANG Da-wei ZHANG Yong-kang ZHANG Tian and LUO Xin-min |
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| Institution: | REN Xu-dong,JIANG Da-wei,ZHANG Yong-kang,ZHANG Tian,LUO Xin-min(Jiangsu Key Laboratory of Laser Manufacture Science and Technology Ministry,College of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | Laser shock processing of three categories of 7050-T7451 aluminum alloy samples was carried out,and their seven groups of fatigue life values were studied.To obtain the values of fatigue safe life of 7050-T7451 aluminum alloy specimens,the unilateral tolerance factor statistical analysis method and two-dimensional Weibull distribution method were used to predict the values of fatigue safe life,respectively,and these two kinds of calculation results were compared.The results show that:the fatigue life of alu... |
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| Keywords: | fatigue safe life two-dimensional Weibull distribution method laser shock processing unilateral tolerance factor method 7050-T7451 aluminum alloy |
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