Experimental Study on Mechanical Properties and Acoustic Emission Characteristics of Water Bearing Sandstone under Stable Cyclic Loading and Unloading

Figure 13

The stress-strain curves of S-2 rock sample group under cyclic loading and unloading (5–33.5 MPa). (a) S-2-1 sample. (b) S-2-2 sample.

(a)

(b)