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| EFFECT OF HETEROGENEITY ON PROPAGATION AND INTERACTION OF TYPE I CRACKS |
| Huang Mingli1，2， Tang Chun’an3 |
| (1 Key Laboratory of Rock and Soil Mechanics，Institute of Rock and Soil Mechanics， The Chinese Academy of Sciences， Wuhan 430071 China) (2 Liaoning University of Engineering and Technology， Fuxin 123000 China) (3 Center for Rockbursts and Induced Seismicity Research，Northeastern University， Shenyang 110006 China) |
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Abstract The failure process of notched specimens with pre-existed cracks or hard granules under external tensile loading are simulated with RFPA2D(Rock Failure Process Analysis)code. The influence of different heterogeneity on the coalescence of cracks and the load-displacement curve is analyzed. The simulating results indicate that it is the local stress concentration and deformation localization due to the heterogeneity that causes the complex interaction of cracks and different patterns of propagation and coalescence.
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GAO Shanhua1, 2, ZHANG Kaiyu1, 2, 3, YANG Mei1, 2, LIU Feng4, ZHU Kanyuan5. Study on the effect of rock mesoscopic heterogeneity on its compressive mechanical properties based on GB-DDA method[J]. , 2025, 44(6): 1612-1623. |
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2002, Vol. 21 
