Splitting failure in brittle rocks containing pre-existing flaws under uniaxial compression
Splitting failure in brittle rocks containing pre-existing flaws under uniaxial compression
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DOI：
10.1016/s0013-7944(02)00065-6
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发表时间：
2002-11
影响因子：
5.4
通讯作者：
R. Wong;Chun’an Tang;K. Chau;P. Lin
中科院分区：
文献类型：
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作者：
R. Wong;Chun’an Tang;K. Chau;P. Lin
利用岩石破坏过程分析（RFPA 2D）对含裂纹样岩石试件在压缩载荷作用下的劈裂破坏进行了数值研究。研究了数值试件中单个、三个和多个类裂纹缺陷的裂纹扩展问题。分析了缺陷的角度、长度、试样宽度和缺陷位置的排列等参数对裂纹生长和合并行为的影响。发现缺陷长度、缺陷位置和相邻缺陷间的应力交互作用是影响裂纹萌生、扩展和贯通行为的重要因素。
Splitting failure of rock specimen containing pre-existing crack-like flaws under compression is numerically investigated using Rock Failure Process Analysis (RFPA2D). Crack growth from single, triple and multi-crack-like flaws contained in numerical specimens are studied. The analysis of parameters, such as angle and length of the flaws, specimen width and the arrangement of flaw locations, is conducted to examine its influence on the growth and coalescence behaviour. Flaw length, flaw location and stress interaction between the nearby flaws are found to be important factors affecting the behaviour of crack initiation, propagation and coalescence.