Optimization of Mechanical Properties and Surface Characteristics of PLA+ 3D Printing Materials

Table 9

Normalized values of tensile strength, Young’s modulus, strain, and surface roughness.

Run no.	Ultimate tensile strength (MPa)	Young’s modulus (GPa)	Tensile strain (%)	Surface roughness (Ra)
1	0.11	0.15	1	1
2	0.44	0.45	0.41	0.59
3	0.89	1	0.26	0
4	0.33	0.43	0.95	0.51
5	1	0.93	0.54	0.34
6	0	0.07	0.60	0.10
7	0.89	0.90	0	0.78
8	0	0	0.87	0.40
9	0.56	0.5	0.82	0.28