摘要
利用岩石破裂过程分析系统(RFPA)软件, 进行了岩石含中心裂纹的巴西盘在单轴压缩荷载作用下破裂过程的数值模拟。数值模拟再现了含不同预制裂纹角度时巴西盘试样所表现出不同的破裂模式以及主裂纹的产生、扩展、贯通、次生裂纹的产生等过程,得到的破裂模式结果与有关文献中的实验结果十分吻合。除此以外,数值试验还能够给出在物理实验中不能观察到的应力场信息及岩石的破裂机制。
Rock failure process analysis (RFPA) code is used to study the failure process of rock disks with pre-existing cracks when subjected to static loading. The numerical simulation reproduces the failure characteristics of rock disks with different inclinations of pre-existing crack, and compare well with the experimental results. By contrast, the numerical simulation can also capture the stress distribution and failure mechanism during the failure process, which cannot be observed from laboratory test.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第10期1609-1612,共4页
Rock and Soil Mechanics
基金
国家自然科学基金(No.50174013
No.5020134040)
辽宁省自然科学基金(No.20031019)资助项目。
关键词
巴西盘
预制裂纹
数值模拟
Compression testing
Computer software
Cracks
Failure analysis
Geotechnical engineering
Numerical analysis
