Evaluating the Applicability of Fracture Criteria to Predict the Crack Evolution Path of Dolomite Based on SCB Experiments and FEM

Table 3

Summary of the crack initiation angles 𝜃₀ for different Poisson's ratio (°).

𝛼	𝑆min-criterion			𝑁𝑇-criterion			𝑌-criterion
	𝑣=0.1	𝑣=0.25	𝑣=0.4	𝑣=0.1	𝑣=0.25	𝑣=0.4	𝑣=0.1	𝑣=0.25	𝑣=0.4
0	0	0	0	0	0	0	0	0	0
10	22.6	26.0	28.6	29.3	29.3	29.3	28.6	29.0	29.3
20	37.4	44.7	49.6	52.8	52.8	52.8	49.4	51.1	51.9
30	59.5	66.5	72.6	81.3	81.3	81.3	72.4	74.8	76.1
34.8	74.5	80.4	86.2	98.9	98.9	98.9	85.9	88.4	89.8
40	74.5	80.4	86.2	98.9	98.9	98.9	85.9	88.4	89.8