| 脆性材料的亚临界裂纹扩展和双向应力的影响 |
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| 引用本文： | 包亦望,王毅敏,金宗哲.脆性材料的亚临界裂纹扩展和双向应力的影响[J].硅酸盐通报,2000,19(1):20-22. |
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| 作者姓名： | 包亦望 王毅敏 金宗哲 |
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| 作者单位： | 中国建材研究院,北京管庄 100024 |
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| 基金项目： | 国家自然科学基金!59672028,59872035 |
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| 摘 要： | 分析了陶瓷,玻璃等脆性材料的断裂机理和表征.指出了脆性材料的失效过程的三种不同的裂纹发展模式.实验研究了玻璃在静载下的亚临界裂纹扩展特征及其受双向应力的影响.从而为脆性材料的可靠性和寿命评价提供理论基础和手段.
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| 关 键 词： | 脆性材料 裂纹扩展 双向应力 亚临界 陶瓷 玻璃 |
Subcritical Crack Growth and Influence of Biaxial Stress in Brittle Materials |
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| Bao Yiwang,Wang Yimin,Jin Zongzhe.Subcritical Crack Growth and Influence of Biaxial Stress in Brittle Materials[J].Bulletin of the Chinese Ceramic Society,2000,19(1):20-22. |
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| Authors: | Bao Yiwang Wang Yimin Jin Zongzhe |
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| Abstract: | The fracture mechanism and characterization of brittle materials like ceramics and glasses were investigated, and three models of crack evolution in failure process were pointed out. The behavior of subcritical crack growth and the effect of biaxial stress, under static load, was studied by experiments with glass specimens. This study provides useful data and method for the evaluation of reliability and lifetime of brittle materials |
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| Keywords: | brittle materials subcritical crack-growth biaxial stress |
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