| 高脆性材料亚临界裂纹扩展机制的细观力学分析 |
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| 引用本文： | 章小丽. 高脆性材料亚临界裂纹扩展机制的细观力学分析[J]. 太原理工大学学报, 1996, 0(2) |
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| 作者姓名： | 章小丽 |
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| 作者单位： | 华北水电学院北京研究生部 |
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| 摘 要： | 本文从细观力学角度研究了高脆性材料亚临界裂纹扩展机制。根据线弹性断裂力学理论和量子力学理论的近似计算，从理论上求得了经验的亚临界裂纹解理扩展速率公式。理论计算与陶瓷材料的实验结果符合得很好。
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| 关 键 词： | 亚临界裂纹；长大速率；高脆性材料；细观力学；断裂力学；量子理论 |
Mesomechanical Studies of Subcritical Crack Growth in Brittle Materials |
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| Zhang Xiaoli. Mesomechanical Studies of Subcritical Crack Growth in Brittle Materials[J]. Journal of Taiyuan University of Technology, 1996, 0(2) |
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| Authors: | Zhang Xiaoli |
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| Affiliation: | Beijing Graduate School of North China Inst. of WCHP |
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| Abstract: | The subcritical crack growth mechanism in brittle materials is studied from the viewpoint of mesomechanics. The empirical expression of subcriticalcrack growth rate is derived theoretically based on both the linear elastic fracture mechanics and the approximation approach of quantum theory. The theoretical results obtained in this study show good agreement with the existing experimental results of ceramics. |
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| Keywords: | subcritical crack growth rate brittle materials mesomechanics fracture mechanics quantum theory |
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