Experimental Research on the Evolution of Hysteresis Curve of Rock in Different Axial Stress Levels
XU Jiang, YIN Guang -zhi, WANG Hong, TANG Yu
DOI:10.11835/j.issn.1674-4764.2006.02.012
Received November 08, 2005,Revised November 08, 2005, Accepted , Available online July 01, 2015
Volume ,2006,Pages 40-42
- Abstract
This paper has probed into the evolution of the hysteresis curve of rock under the cyclic loading by the experimental research on the deformation characteristics of sandstone under cyclic loading in three axial stress levels.The following results have been indicated: whether the hysteresis curve change will depend on the stress level,when the stress level is low,the acreage closed in the hysteresis curve will go invariable with the increase of cyclic count,but when the stress level is high,the acreage closed in the hysteresis curve will be invariable from the decrease and then to the increase with the increase of cyclic count.