Prediction of Tensile Shear Fracture Load of Friction Stir Spot-Welded AA2024-T3/HCS Dissimilar Joints

Table 6

ANOVA test results.

Source	Squares	df	Sum of square	value
Model	31.87	14	2.28	186.65	<0.0001	Significant
	1.54	1	1.54	58.45	<0.0001
	2.93	1	2.93	111.66	<0.0001
	2.21	1	2.21	84.30	<0.0001
	1.91	1	1.91	72.70	<0.0001
	0.086	1	0.086	3.26	0.0912
	0.025	1	0.025	0.94	0.3466
	0.098	1	0.098	3.72	0.0730
	5.6-5	1	5.6E-5	2.1E-3	0.9637
	1.5-4	1	1.5E-4	5.9E-3	0.9395
	0.050	1	0.050	1.88	0.1900
	3.44	1	3.44	131.06	<0.0001
N^2	10.73	1	10.73	408.58	<0.0001
	13.51	1	13.51	514.26	<0.0001
	0.015	1	0.015	0.55	0.4684
Residual	0.39	15	0.026
Lack of fit	0.28	10	0.028	1.27	0.4170	Nonsignificant
Pure error	0.12	5	0.021
Cor. total	32.26	29
Std. dev.	0.16		Calc.	0.9878
Mean	7.88		Adj.	0.9764
C.V. (%)	2.06		Pred.	0.9445
Prec.	1.78		Adeq. Prec.	33.514