| 局部应力应变法的试验研究 |
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| 引用本文： | 凌静.局部应力应变法的试验研究[J].北京理工大学学报,1992,12(4):65-70. |
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| 作者姓名： | 凌静 |
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| 作者单位： | 北京理工大学车辆工程学院 |
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| 摘 要： | 概述了局部应力应变法的原理和现有的各种理论,试验测定了40CrNiMoA材料的循环应力应变曲线、应变寿命曲线,并做了随机载荷作用下缺口试件的疲劳试验.用上述各种理论估算了缺口试件的疲劳寿命,并与试验结果作了比较分析。
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| 关 键 词： | 结构强度 疲劳寿命 疲劳试验 应力 |
Experimental Study on the Local Stress-Strain Method |
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| Ling Jing.Experimental Study on the Local Stress-Strain Method[J].Journal of Beijing Institute of Technology(Natural Science Edition),1992,12(4):65-70. |
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| Authors: | Ling Jing |
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| Abstract: | The local stress - strain method for fatigue life prediction and its different theories are briefly introduced. The cycle stress - strain curve and strain-life curve for the steel 40CrNiMoA were experimentally obtained, and the fatigue tests of notched specimens under random loads carried out. The fatigue lives of notched specimens are predicted applying different theories, and compared with the test results. |
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| Keywords: | structural strength fatigue life fatigue tests/life predication |
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