Study on Acoustic Emission and Damage Mechanical Properties of Freeze-Thaw Sandstone under Uniaxial Compression

Figure 7

The relationship between stress and the ring count in sandstone as a function of time. The statistical range of the ring count is .

(a) 0 cycles

(b) 5 cycles

(c) 10 cycles

(d) 20 cycles

(e) 30 cycles