摘要
岩石断裂韧度测试方法研究是准确获取岩石断裂韧度值的重要前提,也是进行岩石断裂力学理论和应用探索的重要途径.本文综述了国内外岩石Ⅰ型断裂韧度测试方法,着重介绍了美国材料与测试协会(ASTM)和国际岩石力学协会(ISRM)提出的建议测试方法及其研究进展;对比了不同测试方法获得的岩石Ⅰ型断裂韧度值之间的差异,并分析了产生这种差异的原因;指出了岩石断裂韧度测试方法中有待于进一步研究的问题.
Research on rock fracture toughness testing methods is not only an important precondition to obtain accurate rock fracture toughness values,but also a key way to explore the rock fracture mechanics theory and application.Existing testing methods of rock mode-I fracture toughness are summarized.The research situation and progress of ASTM and ISRM suggesting testing methods are specifically introduced,then the variances of mode-I fracture toughness values derived from suggested methods are investigated and the reasons for that variance were analyzed.Finally some problems which need to be further studied in the rock fracture toughness testing methods are pointed out.
出处
《测试技术学报》
2009年第3期189-196,共8页
Journal of Test and Measurement Technology
基金
国家自然科学基金资助项目(40472145)
国家973资助项目(2006CB705802)
关键词
岩石Ⅰ型断裂韧度
测试方法
比较与修正
研究进展
mode-Ⅰ fracture toughness of rock
testing method
comparison and calibration
research progress
