Mode I Fracture Toughness Test and Fractal Character of Fracture Trajectory of Red Sandstone under Real-Time High Temperature

Figure 10

Fracture morphology of sandstone at different temperatures (SEM images): (a) 20°C; (b) 100°C; (c) 200°C; (d) 300°C; (e) 400°C; (f) 500°C; (g) 600°C.

(a)

(b)

(c)

(d)

(e)

(f)

(g)