| 三维应力状态下高温低周疲劳寿命分析 |
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| 引用本文： | 黄宏发,张文孝.三维应力状态下高温低周疲劳寿命分析[J].材料工程,1997(3):40-41,23. |
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| 作者姓名： | 黄宏发 张文孝 |
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| 作者单位： | [1]北京航空材料研究院 [2]大连理工大学 |
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| 摘 要： | 通过带缺口的圆柱形ＬＤ８铝合金度样的高温低周疲劳试验，并应用ＴＭＦ程序，进行了轴对称问题的循环应力应变计算，探讨了应用当量应变范围评价三维低周疲劳特性，研究结果表明，三维应力状态下，当量应变范围可以作为三维高温低周疲劳的有效力学参量。
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| 关 键 词： | 低周疲劳 当量应力 当量应变 铝合金 |
Analysis of Low Cycle Fatigue Life at Elevated Temperature under Three- Dimensional Stress State |
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| Huang Hongfa.Analysis of Low Cycle Fatigue Life at Elevated Temperature under Three- Dimensional Stress State[J].Journal of Materials Engineering,1997(3):40-41,23. |
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| Authors: | Huang Hongfa |
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| Abstract: | In this paper,low cycle fatigue experiments at elevated temperature are finished in aluminum alloy LD8specimens with two kinds of notches.The cyclic strain and stress is cal- culated by means of the program TMF.The results of experiments and calculations show that e- quivalent strain range can be as the parameters of low cycle fatigue life. |
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| Keywords: | low cycle fatigue equivalent strain equivalent stress |
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