Research Article

Failure Behavior and Energy Storage and Release of Hard Coal under Different Static and Dynamic Loading States

Figure 6

Stress-strain curve of the dynamic tensile test. (a) Axial static load of 0 MPa. (b) Axial static load of 0.289 MPa. (c) Axial static load of 0.578 MPa.
(a)
(b)
(c)