Related Rule Study of Subcritical Crack Growth and Threshold Values in Transversely Isotropic Slates

Table 2

Shear modulus of slate rock specimen at different angles.

β	0°	30°	45°	70°	80°	90°
	16.89	13.20	8.38	6.05	5.69	5.57
	5.57	8.38	8.70	13.65	15.96	16.89
	5.57	13.05	16.68	7.69	5.68	16.89