Investigation on the Effect of Dynamic Frequency on Fracture Evolution in Preflawed Rock under Multistage Cyclic Loads: Insight from Acoustic Emission Monitoring

Figure 5

The relationship between the axial stress, AE rate, AE count accumulation, AE energy, AE accumulative energy, and the experimental time for preflawed granite under dynamic frequency of 0.04, 0.1, 0.5, and 1.0, respectively. (a–d) Description of AE counts during rock deformation. (e–h) Description of AE energy during rock deformation.

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