Fig. 13
From: A comparative study of shear crack growth mechanisms in concrete through acoustic emission analysis

Variation in b-value versus loading history of Z-shaped specimen: (a) direct shear specimen; (b) compression-shear specimen.
From: A comparative study of shear crack growth mechanisms in concrete through acoustic emission analysis
Variation in b-value versus loading history of Z-shaped specimen: (a) direct shear specimen; (b) compression-shear specimen.