Nonlinear Dynamic Constitutive Model of Frozen Sandstone Based on Weibull Distribution

Figure 7

Dynamic stress-strain curve fitting of sandstone at different temperatures: (a) T = 20°C and ; (b) T = 20°C and ; (c) T = −10°C and ; (d) T = −10°C and ; (e) T = −20°C and ; (f) T = −20°C and ; (g) T = −30°C and ; (h) T = −30°C and .

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)