A Comparative Study of the Cracking Effect of Induced Joints of Various Spatial Formations

Table 3

Summary of average equivalent stress intensity factor and spatial morphology impacting factor of different seam surface angles.

The joint plane angle	Normalized						The spatial formation factor of the joint plane
	0.0	1.000	1.000	1.000	1.000	1.000		1.000	1.00
5.0	1.000	0.980	0.991	0.984	0.992	0.980	1.02
7.5	1.000	0.970	0.987	0.976	0.987	0.970	1.03
10.0	1.000	0.957	0.982	0.967	0.981	0.957	1.04
12.5	0.999	0.942	0.975	0.956	0.957	0.942	1.06
15.0	0.997	0.925	0.970	0.948	0.948	0.925	1.08
20.0	0.992	0.886	0.946	0.918	0.932	0.886	1.13
25.0	0.982	0.841	0.915	0.890	0.880	0.841	1.19
30.0	0.927	0.791	0.864	0.856	0.830	0.791	1.26

Note: is the average equivalent stress intensity factor of the twisted joint plane in a square plate under uniaxial tensile loading; is the average equivalent stress intensity factor of the twisted joint plane in a square plate under shear loading; is the average equivalent stress intensity factor of the twisted joint plane in a semicylindrical arch dam with the slope angle of 30° under temperature drop loading; is the average equivalent stress intensity factor of the twisted joint plane in a semicylindrical arch dam with the slope angle of 45° under temperature drop loading; is the average equivalent stress intensity factor of the twisted joint plane of in semicylindrical arch dam with the slope angle of 60° under temperature drop loading; is the lowest value of the normalized stress intensity factor shown in columns ~; is the joint plane spatial formation factor.