Analysis of Similarities and Differences between Acoustic Emission and Charge Signal Based on Fractal Characteristics of Coal Fracture

<div>Accumulation of AE energy and charge evolution with stress. (a) The stress growth before peak strength. (b) The stress drop after peak strength.</div>

Advances in Civil Engineering

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Figure 10

Figure 10: Analysis of Similarities and Differences between Acoustic Emission and Charge Signal Based on Fractal Characteristics of Coal Fracture 