| 可锻铸铁的疲劳裂纹扩展研究 |
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| 引用本文： | 朱龙.可锻铸铁的疲劳裂纹扩展研究[J].昆明理工大学学报(理工版),2000,25(3). |
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| 作者姓名： | 朱龙 |
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| 作者单位： | 昆明理工大学机电工程学院,云南昆明,650051 |
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| 摘 要： | 用线弹性断裂力学原理和方法研究可锻铸铁的疲劳裂纹扩展问题 ,不同基体的可锻铸铁作为研究对象 ,运用数理统计的原理和方法 ,对其疲劳裂纹扩展进行线性回归处理 ,发现其回归方程是有效的、合理的 ;试验还表明可锻铸铁的疲劳裂纹扩展速率da/dN随基体中珠光体的增加而增加 .
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| 关 键 词： | 疲劳裂纹 扩展 可锻铸铁 |
Research of Fatigue Crack Propagation on Malleable Cast Iron |
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| ZHU Long.Research of Fatigue Crack Propagation on Malleable Cast Iron[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2000,25(3). |
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| Authors: | ZHU Long |
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| Abstract: | Research of fatigue crack propagation on malleable cast iron with linear elastic stress. Measuring fatigue crack propagation rate with mathematical statistics. It's equation of linear regression is valid. The experiment shows that the fatigue propagation rate increase with the increase of the pearlite content in malleable cast iron. |
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| Keywords: | fatigue crack propagation malleable cast iron |
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