Numerical Test Study of the Microscale Failure Modes and Fractal Analysis of Lower Cambrian Shale Based on Digital Images

Figure 14

Fracture modes diagram of shale under different confining pressures and corresponding acoustic emission diagram. (a) 0 MPa. (b) 2 MPa. (c) 4 MPa. (d) 6 MPa. (e) 8 MPa. (f) 10 MPa.