Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 12, No. 44 (2018)

An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials

Author and affiliation details
  • xiaoping zhou Corresponding author School of Civil Engineering, Chongqing University, Chongqing 400045, China xiao_ping_zhou@126.com
  • Xiaocheng Huang School of Civil Engineering, Chongqing University, Chongqing 400045, China
  • Filippo Berto Department of Mechanical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway ORCID iD0000-0002-4207-0109
DOI
10.3221/IGF-ESIS.44.06
Pages
64-81
Published
Published inVol. 12, No. 44 (2018)Go to the issue

Abstract

Rocks may exhibit time-dependent behaviors. Long-term strength criterion significantly dominates creep failure of rocks. Rocks contain many microcracks, which lead to degrade of long-term strength. In this paper, it is assumed that there exist three-dimensional penny-shaped microcracks in rocks. The mode II stress intensity factors at tips of three-dimensional penny-shaped microcracks in Burgers viscoelastic rock matrix is derived. A novel micromechanics-based three-dimensional long-term strength criterion is established to consider the effects of time and the intermediate principal stress on creep failure of rocks. By comparison with the previous experimental data, it is found that the novel micromechanics-based three-dimensional long-term strength criterion is in good agreement with the experimental data.

Keywords

Article history

  1. ReceivedUntil the next stage: 8 days
  2. AcceptedUntil the next stage: 41 days
  3. Published

How to cite

APA

zhou, X., Huang, X., & Berto, F. (2018). An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials. Fracture and Structural Integrity, 12(44), 64–81. https://doi.org/10.3221/IGF-ESIS.44.06

IEEE

X. zhou, X. Huang, and F. Berto, “An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials,” Fracture and Structural Integrity, vol. 12, no. 44, pp. 64–81, 2018, doi: 10.3221/IGF-ESIS.44.06.

MLA

zhou, xiaoping, et al. “An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials.” Fracture and Structural Integrity, vol. 12, no. 44, 2018, pp. 64–81. https://doi.org/10.3221/IGF-ESIS.44.06.

Chicago

zhou, xiaoping, Xiaocheng Huang, and Filippo Berto. 2018. “An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials.” Fracture and Structural Integrity 12 (44): 64–81. https://doi.org/10.3221/IGF-ESIS.44.06.

Harvard

zhou, X., Huang, X. and Berto, F. (2018) ‘An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials’, Fracture and Structural Integrity, 12(44), pp. 64–81. doi: 10.3221/IGF-ESIS.44.06.

Vancouver

zhou X, Huang X, Berto F. An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials. Fracture and Structural Integrity. 2018;12(44):64-81. doi:10.3221/IGF-ESIS.44.06

BibTeX

@article{zhou2018, author = {zhou, xiaoping and Huang, Xiaocheng and Berto, Filippo}, title = {An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials}, journal = {Fracture and Structural Integrity}, year = {2018}, volume = {12}, number = {44}, pages = {64--81}, doi = {10.3221/IGF-ESIS.44.06}, url = {https://doi.org/10.3221/IGF-ESIS.44.06}, issn = {1971-8993} }

RIS

TY - JOUR AU - zhou, xiaoping AU - Huang, Xiaocheng AU - Berto, Filippo TI - An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2018 DA - 2018/03/18 VL - 12 IS - 44 SP - 64 EP - 81 DO - 10.3221/IGF-ESIS.44.06 UR - https://doi.org/10.3221/IGF-ESIS.44.06 SN - 1971-8993 ER -

Licence

Copyright © 2018 xiaoping zhou, Xiaocheng Huang, Filippo Berto.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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