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Journal of Mining Science

, Volume 46, Issue 4, pp 359–366 | Cite as

Modeling of the Incremental Strain Sign-Change Effect in Rocks under Compression

  • Wang Mingyang
  • Qi Chengzhi
  • Qian Qihu
  • Wu Hui
Geomechanics

Abstract

It is established experimentally that the incremental strain sign-change effect is observed in preliminarily damaged rock samples in the pre-failure zone under compression. The theory of continuous phase transition is employed to study this effect. The governing equation and its solution are derived. The numerical results obtained prove that this approach is good for adequate description of the sign-change effect for strain increments in rock samples under compression.

Key words

High compression state strain increment sign-change effect diffused phase transition 

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • Wang Mingyang
    • 1
    • 2
  • Qi Chengzhi
    • 1
    • 2
  • Qian Qihu
    • 1
    • 2
  • Wu Hui
    • 1
    • 2
  1. 1.Chinese Engineering AcademyBeijingP. R. China
  2. 2.Beijing Institute of Civil Engineering and ArchitectureBeijingP. R. China

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