Experimental Study on Dynamic Tensile Mechanical Behavior and Fracture Mechanical Characteristics of Sandstone with a Single Prefabricated Fissure

Table 4

Analysis of variance with regression model.

Source of variation	Sum of square	Mean square	F-value	P-value
Model	62.86	12.57	21.78	<0.0001
θ	16.07	16.07	27.83	0.0005
	35.05	35.05	60.71	<0.0001
	0.5821	0.5821	1.01	0.3415
	4.64	4.64	8.04	0.0195
	0.0037	0.0037	0.0065	0.9377
Residual	5.20	0.5773	—	—
Cor total	68.06	—	—	—