Dynamic Compressive Characteristics of Sandstone under Confining Pressure and Radial Gradient Stress with the SHPB Test

Figure 5

Stress and strain curves for the sandstone under dynamic loading with (a) impact at 0.6 MPa pressure under a confining pressure of 5 MPa, (b) impact at 0.7 MPa pressure under a confining pressure of 5 MPa, (c) impact at 0.6 MPa pressure under a confining pressure of 10 MPa, and (d) impact at 0.7 MPa pressure under a confining pressure of 10 MPa.

(a)

(b)

(c)

(d)