Attenuation Characteristics of Stress Wave Peak in Sandstone Subjected to Different Axial Stresses

Figure 4

Waveforms under different axial stresses. (a) 0 MPa. (b) 8.28 MPa. (c) 16.56 MPa. (d) 24.84 MPa. (e) 33.12 MPa.

(a)

(b)

(c)

(d)

(e)