Research on Acoustic Emission Characteristics and Constitutive Model of Rock Damage Evolution with Different Sizes

Figure 7

Stress-strain-acoustic emission characteristic curves of rock specimens with different values of K. (a) K = 1.0, (b) k = 1.5, (c) k = 2.0, (d) k = 2.5.

(a)

(b)

(c)

(d)