Multiscale Investigation of Microcrack-Induced Instability in Rocks

Conference paper
First Online:
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The paper deals with a mathematical description of instability and localization in rocks through a multi-scale modeling strategy with coupled multiphysics. We adopt a homogenization approach to work out an effective description of microscopic phenomena at the continuum through defining a Representative Volume Element (RVE). The role of hydro-mechanical coupling in the transition from an otherwise initial diffuse state to a localized state can be investigated through the gradual degradation of the kinematics due to micro-fracture formation.

Keywords

Representative Volume Element Deviatoric Stress Mass Balance Equation Behavioral Equation Microcrack Growth 
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Notes

Acknowledgements

This work is jointly funded by the Natural Science and Engineering Council of Canada and the Foundation Computer Modeling Group (FCMG).

References

  1. 1.
    Dormieux, L., Kondo, D., Ulm, F.J.: Microporomechanics. Wiley, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England (2006). doi: 10.1002/0470032006
  2. 2.
    Nemat-Nasser, S., Hori, M.: Micromechanics: Overall Properties of Heterogeneous Materials, North-Holland (1993)Google Scholar
  3. 3.
    Wan, R.G., Eghbalian, M.: Int. J. Solids Struct. 96, 274 (2016). doi: 10.1016/j.ijsolstr.2016.06.002 CrossRefGoogle Scholar
  4. 4.
    Zhao, C., Hobbs, B.E., Ord, A., Hornby, P., Shenglin, P., Liu, L.: Geophys. J. Int. 166(2), 970 (2006). doi: 10.1111/j.1365-246X.2006.03049.x CrossRefGoogle Scholar
  5. 5.
    Zehnder, A.T.: In Fracture Mechanics, pp. 7–32, Springer Netherlands (2012). doi: 10.1007/978-94-007-2595-9_2
  6. 6.
    Golshani, A., Okui, Y., Oda, M., Takemura, T.: Mech. Mater. 38(4), 287 (2006). doi: 10.1016/j.mechmat.2005.07.003 CrossRefGoogle Scholar
  7. 7.
    Shao, J.F., Zhou, H., Chau, K.T.: Int. J. Numer. Anal. Meth. Geomech. 29(12), 1231 (2005). doi: 10.1002/nag.457 CrossRefGoogle Scholar
  8. 8.
    Huang, Z., Yao, J., Li, Y., Wang, C., Lv, X.: Commun. Comput. Phys. 9(1), 180 (2011). doi: 10.4208/cicp.150709.130410a CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Civil Engineering DepartmentUniversity of CalgaryCalgaryCanada

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