| 延时断裂统计理论 |
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| 引用本文： | 邢修三.延时断裂统计理论[J].物理学报,1990,39(10):1602-1613. |
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| 作者姓名： | 邢修三 |
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| 作者单位： | 北京理工大学应用物理系,北京,100081,中国科学院国际材料物理中心,沈阳,110015 |
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| 基金项目： | 国家自然科学基金资助的课题 |
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| 摘 要： | 本文研究了广泛应力范围内(1》(ασ)/(Kt)》1)热激活延时断裂统计理论,文中从微裂纹按原子键机理随机演化导致断裂的思路出发,导出了微裂纹分布函数、断裂几率、可靠性、强度和寿命的统计分布函数及其统计平均值。
关键词：
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| 关 键 词： | 延时应力 断裂 统计 |
| 收稿时间： | 1989-11-10 |
STATISTICAL THEORY OF DELAYED FRACTURE |
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| XING XIU-SAN.STATISTICAL THEORY OF DELAYED FRACTURE[J].Acta Physica Sinica,1990,39(10):1602-1613. |
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| Authors: | XING XIU-SAN |
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| Abstract: | A statistical theory of delayed fracture in a wide range of stress (1》(ασ)/(Kt)》1) has been proposed. The fundamental idea is that microcrack stochastically evolves based on the atomic bond mechanism leading to fracture. The microcack evolution equation is given. The microcrack distribution function, fracture probability, reliability, the statistical distribution function of fracture strength and fracture life and their statistical average value are derived. |
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