Research Article

Application and Effect of Loading Rates on Coal Sample Failure

Figure 9

Failure modes of samples under different loading rates: (a) the loading rate is 5 × 10−7 m/s; (b) the loading rate is 5 × 10−6 m/s; (c) the loading rate is 1.7 × 10−5 m/s; (d) the loading rate is 5 × 10−5 m/s.
(a)
(b)
(c)
(d)