Optimization of process parameters of 3D printed thermoplastic elastomeric materials using statistical modeling with particular reference to mechanical properties and print quality

Functional Composite Materials

Table 4 Anova analysis for tensile strength

Source	DF	Adj SS	Adj MS	F-Value	P-value	R²	Remarks
Model	5	2.88333	0.57667	35.46	0	90.07%	F_0.05,5,14 = 2.958
Linear	3	2.55117	0.85039	52.30	0		F_model > F_0.05,5,14
Square	2	0.33216	0.16608	10.21	0.002		Thus, model is adequate
Error	14	0.22764	0.01626				F_0.05,9,14 = 2.645
Lack-of-Fit	9	0.16044	0.01783	1.33	0.396		F_lack-of-fit < F_0.05,9,14
Total	19	3.11098					Thus, lack-of-fit is insignificant

DF: Degree of freedom, F-value: Fisher’s value, Adj MS: Adjusted mean squares, Adj SS: Adjusted sum of squares