Experimental Study on Fracture Patterns and Crack Propagation of Sandstone Based on Acoustic Emission

Figure 8

Evolution diagram of RA-AF scatter density distribution of sandstone under uniaxial compression: (a) Stage I of specimen UC-1. (b) Stage II of specimen UC-1. (c) Stage III of specimen UC-1. (d) Stage of specimen UC-1. (e) Stage V of specimen UC-1. (f) Stage I of specimen UC-3. (g) Stage II of specimen UC-3. (h) Stage III of specimen UC-3. (i) Stage IV of specimen UC-3. (j) Stage V of specimen UC-3.

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