| Miner公式和Manson-Coffin公式的能量基础 |
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| 引用本文： | 聂宏.Miner公式和Manson-Coffin公式的能量基础[J].航空学报,1993,14(5):310-312. |
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| 作者姓名： | 聂宏 |
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| 作者单位： | 南京航空航空大学飞机工程系 南京 210016 |
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| 摘 要： | 在结构疲劳寿命计算中,Palmgrem-Miner理论(简称Miner理论或Miner公式)是应用最广泛的线性累积损伤理论,而Manson-Coffin公式则是局部应力应变法中十分重要的应变-寿命关系式。对于这两个常用的公式,统一从能量—寿命关系出发进行了验证。揭示了它们的能量基础和相互关系。
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| 关 键 词： | 累积损伤 疲劳寿命 变形能 应力和应变 |
| 收稿时间： | 1991-11-18 |
| 修稿时间： | 1992-05-30 |
ENERGY BASIS OF MINER THEORY AND MANSON-COFFIN FORMULA |
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| Nie Hong.ENERGY BASIS OF MINER THEORY AND MANSON-COFFIN FORMULA[J].Acta Aeronautica et Astronautica Sinica,1993,14(5):310-312. |
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| Authors: | Nie Hong |
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| Institution: | Dept of Aircraft Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 |
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| Abstract: | In the fatigue life prediction of engineering structure, Palmgrem-Miner linear accumulative damage theory (called Miner theory for short) has found the widest application, and Manson-Coffin formula is a very important strain-life expression used in the local strain method. The verification of Miner theory and Manson-Coffin formula is done in this paper based on lots of strain energy-life experimental data The relationship between Miner theory and Manson-Coffin formula is found. A new prediction method of material behavior parameters for strain fatigue is built on some results from this paper, which shows that it is better than the other existing methods for predicting material behavior parameters. |
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| Keywords: | accumulative damage fatigue life strain energy stress and strain |
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