• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊
LIANG Zheng-zhao, LI Lian-chong, TANG Shi-bin, ZHANG Yong-bin. 3D numerical simulation of growth of surface crack of rock specimens[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(10): 1615-1622.
Citation: LIANG Zheng-zhao, LI Lian-chong, TANG Shi-bin, ZHANG Yong-bin. 3D numerical simulation of growth of surface crack of rock specimens[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(10): 1615-1622.

3D numerical simulation of growth of surface crack of rock specimens

More Information
  • Published Date: October 14, 2011
  • Rock failure results from the process of internal crack initiation, propagation and coalescence intrinsically. A 3D numerical model based on the microscopic damage mechanics is employed to simulate the failure process of numerical rock specimens containing a pre-existing surface flaw subjected to uniaxial compression. The initiation, propagation and coalescence of wing cracks, shell cracks, anti-wing cracks and the secondary crack of shell cracks are reproduced in three-dimensional manner. Numerical results are obtained as follows: (1) anti-wing cracks are induced by the tensile stress after the stress release resulting from the propagation of wing cracks; (2) the shell cracks are predominated by III-type loading, and the wing cracks stop when they propagate ahead for a certain distance; (3) the secondary cracks of the shell cracks lead to the collapse of the whole specimen; (4) III-type fracture could not be obtained by III-type loading in rocks, and the shell cracks are induced by tensile stress in III-type loading; (5) due to the heterogeneities in rocks, it is difficult to find curved wing cracks and anti-wing cracks. The numerical results will be a good supplement of experimental investigation of surface flaw. The numerical code is proved to be a satisfactory tool to investigate the rock fracture in three-dimensional manner.
  • Related Articles

    [1]Experimental investigation on load transfer characteristics of screw groove pile-geogrid composite foundation[J]. Chinese Journal of Geotechnical Engineering. DOI: 10.11779/CJGE20240528
    [2]LUO Xiao-guang, REN Wei-xin, YIN Yong-gao. Simplified nonlinear method for settlement of root piles in multi-layered soils[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(2): 368-376. DOI: 10.11779/CJGE202202019
    [3]MA Wen-jie, WANG Xu, WANG Bing-long, WANG Bo-lin. Transformation of load-settlement curve based on load transfer at pile-soil interface[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S1): 41-46. DOI: 10.11779/CJGE2021S1008
    [4]WANG Wei-dong, WU Jiang-bin, WANG Xiang-jun. Ultimate load tests on bearing and deformation behavior of uplift piles with enlarged base[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1330-1338. DOI: 10.11779/CJGE201607022
    [5]MAO Yan-bing, DAI Guo-liang, GONG Wei-ming. Settlement of pile groups based on static load tests on single pile[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 627-631.
    [6]ZHU Bin, REN Yu, CHEN Renpeng, CHEN Yunmin, WANG Zhenyu. Model test on bearing capacity and accumulated settlement of single pile subjected to axial cyclic loading[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 186-193.
    [7]DONG Tianwen, ZHANG Yajun, LI Shiwei, HUANG Lianzhuang. Bearing capacity of screw pile group determined by inclined pull-out test[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(3): 429-433.
    [8]DONG Tianwen, LIANG Li, WANG Mingshu, ZHANG Chengjin. Pitch of screws and bearing capacity of screw piles under ultimate load[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(11): 2031-2034.
    [9]Unified load-settlement solution of single piles based on bilinear load transfer[J]. Chinese Journal of Geotechnical Engineering, 2004, 26(3): 428-431.
    [10]ZHANG Jiru, TANG Baofu. Hyperbolic function model to analyze load transfer mechanism on bolts[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(2): 188-192.

Catalog

    Article views (1368) PDF downloads (1094) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return