| 岩石裂纹小范围屈服时声发射总数与应力强度因子关系的研究 |
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| 引用本文： | 黄志鹏,朱可善.岩石裂纹小范围屈服时声发射总数与应力强度因子关系的研究[J].土木建筑与环境工程,1998,20(2):41-46. |
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| 作者姓名： | 黄志鹏 朱可善 |
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| 作者单位： | 长江科学院重庆岩基研究中心，重庆建筑大学建筑工程学院 |
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| 摘 要： | 根据裂纹尖端微裂纹密度理论，假定声发射总数与裂纹尖端的显微裂纹总长度成正比，推导了出了岩石裂纹稳定扩展时声发射总数与应力强度因子之间的关系式。将并一些试验结果与理论推导进行了比较，结果表明；理论推导与试验结果大体一致。
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| 关 键 词： | 岩石 裂纹 声发射 应力强度因子 |
Studies on the Relationship between TotalAcoustic Emission Count and Stress IntensityFactor for Rock Crack Yielded within Small Scope |
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| Abstract: | Based on the crack tip microcrack density theory,a supposition that total AE count is directly proportional to the total microcrack length is proposed,a relationship between total AE count and stress intensity factor for stable crack growth is derived.With a series of experimental results,the relationship between theoretical derivation and the experimental results is compared,it shows that the theoretical derivation coincides better with the experimental results. |
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| Keywords: | rock crack acoustic emission stress intensity factor |
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