Simulation of the Effect of Coal Microstructures on the Macroscopic Mechanical Behavior

Figure 16

The stress-stain curves of coal models A1, A2, and A3: (a) 0.5 MPa; (b) 1.0 MPa; (c) 1.5 MPa; and (d) 2.0 MPa.

(a)

(b)

(c)

(d)