Fig. 17

Failure modes of sandstone samples with a single flaw under 50% water content: (a) α = 0°; (b) α = 30°; (c) α = 45°; (d) α = 60°; (e) α = 90°.
Failure modes of sandstone samples with a single flaw under 50% water content: (a) α = 0°; (b) α = 30°; (c) α = 45°; (d) α = 60°; (e) α = 90°.