›› 2006, Vol. 27 ›› Issue (8): 1416-1420.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on mechanics behavior of containing holes in brittle material subjected to uniaxial compression

DUAN Jin-chao1, 2, TANG Chun-an1, 2, CHANG Xu1, 2, CHEN Qi-shuan3   

  1. 1. Center for Rock Instability and Seismicity Research, Northeastern University, Shenyang 110004, China; 2. Research Center for Numerical Tests on Material Failure, Dalian University, Dalian 116622, China; 3. Chengde Petroleum College, Chengde 067000, China
  • Received:2004-10-20 Online:2006-08-10 Published:2013-11-26

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Abstract: A newly developed numerical approach MFPA2D (material failure process analysis)Code is presented to simulate the failure process of brittle material containing single hole or double holes under uniaxial compression. Numerical simulation results show that initial cracks are not always the leading cracks which result in the ultimate macroscopical perforation failure. And brittle materials have a localization characteristic when they damage. It is also shown that nonhomogeneity is the essential reason of brittle material’s local failure. The influence of hole distribution on the material strength and failure mode is studied. Stress-strain curves of failure process for models are provided. The material strength decreases 50% if it contains a single hole or double holes. It is indicated that some hole distribution can increase the stress concentration and some hole distribution can decrease the stress concentration．The numerical simulation results are consistent with the experimental results

Key words: hole distribution, nonhomogeneity, failure process, numerical simulation

CLC Number: 

  • TU 443
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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