| 理论门槛值的研究 |
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| 引用本文： | 徐人平 段小建. 理论门槛值的研究[J]. 强度与环境, 1995, 0(4): 12-16 |
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| 作者姓名： | 徐人平 段小建 |
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| 作者单位： | 云南工学院机械工程系!云南昆明，650051 |
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| 摘 要： | 阐述了应力强度因子门槛值△Ｋｔｈ的重要性，讨论了理论门槛值的概念，分析了工程门槛值的局限性，提出了理论槛值的求解方法，实例分析显示了理论门槛值研究，无论对于工程应用或理论研究均具有重要意义。
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| 关 键 词： | 应力强度因子 阈值 裂纹扩展 |
Investigation on Theoretical Threshold |
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| Xu Renping,Duan Xiaojian,Zhan zhaolin. Investigation on Theoretical Threshold[J]. Structure & Environment Engineering, 1995, 0(4): 12-16 |
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| Authors: | Xu Renping Duan Xiaojian Zhan zhaolin |
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| Affiliation: | Yunnan Institute of Technology |
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| Abstract: | In this paper, the importance of stress intensity factor threshold Kth is elaborated, the limi-tation of engineering threshold is analysised, the concept of the theoretical threshold is discussed and amethod that the theoretical threshold can be calcuIated with is found. Practical examples have shown thatthe research of theoretical threshold is significance to engineering use and theoretical analysis |
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| Keywords: | Stress intensity factor ~+Threshold value Crack propagation |
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