Computational SimulationNo Access

EXPERIMENT STUDY ON MECHANICAL PROPERTIES OF GRANITE UNDER REPEATED LOADING AND UNLOADING

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuchang Xiaohongshan 12#, Wuhan, 430071, P.R.China

Search for more papers by this author

and

QUAN-SHENG LIU

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuchang Xiaohongshan 12#, Wuhan, 430071, P.R.China

Search for more papers by this author

https://doi.org/10.1142/S0217979208047183Cited by:4 (Source: Crossref)

Abstract

Deformation rules and acoustic emission characteristics of granite under repeated loading-unloading are studied using the MTS Mechanics Testing System and Disp. acoustic emission instrument. It's found that the axial stiffness of granite as well as Poisson's ratio increases with the development of the plastic strain while the change trend of lateral stiffness is negative. For brittle rocks, strain is produced by three mechanisms: elastic deformation, axial micro-cracking and compaction. The peak AE rate is increasing with the plastic strain, which indicates that using the axial plastic strain as the internal damage variable to represent rock damage is reasonable.

Keywords:

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

Jiang Yu and Ge Xiu-Tun, Chinese J. Rock. Mech. Min. Eng. 23, 1810 (2004). Google Scholar
M. S. Diederichs, P. K. Kaiser and E. Eberhardt, Int. J. Rock. Mech. Min. Sci. 41, 785 (2004). Crossref, Web of Science, Google Scholar
C. D. Martin and N. E. Chandler, Int. J. Rock. Mech. Min. Sci. & Geomech. Abstr. 31, 643 (1994). Crossref, Web of Science, Google Scholar
E. Eberhardt, D. Steab and B. Stimpson, Int. J. Rock. Mech. Min. Sci. 36, 361 (1999). Crossref, Web of Science, Google Scholar
E. T. Brown (ed.), Rock characterization testing and monitoring, IRSM suggested methods (Pergamon Press, Oxford, 1981) pp. 107–127. Google Scholar
Soo-Ho Chang, Chung-In Lee and Youn-Kyou Lee, Rock. Mech. Rock. Eng. 40(3), 245 (2007). Crossref, Web of Science, ADS, Google Scholar
E. Z. Lajtai, Rock. Mech. Rock. Eng. 31(4), 237 (1998). Crossref, Web of Science, ADS, Google Scholar
V. Hajiabdolmajid and P. Kaiser, Tunneling and underground space technology 18, 35 (2003). Crossref, Web of Science, Google Scholar
A. Lavrov, Int. J. Rock. Mech. Min. Sc. 40, 151 (2003). Crossref, Web of Science, Google Scholar
R. H. C. Wong and K. T. Chau, Int. J. Rock. Mech. Min. Sci. 35(2), 147 (1998). Crossref, Web of Science, Google Scholar
M. Basista and D. Gross, Int. J. Frac. 102, 67 (2000). Crossref, Google Scholar