A Study of Acoustic Emission and Damage Evolution of Limestone under Different Stress Paths and Confining Pressures

Figure 9

AE ringing count/damage variable-time relations of Scheme 2 under different confining pressures (confining pressure setting: (a) 5 MPa, (b) 10 MPa, and (c) 20 MPa).

(a)

(b)

(c)