PSI - Issue 28

Fatima Majid et al. / Procedia Structural Integrity 28 (2020) 1719–1726 Author name / Structural Integrity Procedia 00 (2019) 000–000

1723

5

Fig. 4. Printed ABS material tensile curve.

The shown table present the different proprieties of a printed ABS.

Elastic limit � (MPa) Tensile strength � (MPa) Elongation at break (%)

Table 2. Printed ABS proprieties.

ABS sample

Young’s modulus (GPa)

And another entry

1.2

30

35,7

5.8

3.2. Density effect on the mechanical properties Tensile testing on four different infill rate ( 20%, 40%, 60%, 100% ) of the studied material are undertaken based on specimen geometry as presented in fig.4 . The mechanical behavior of each of the specimens was investigated.

Fig. 5. (a) Infill rate effect; (b) tensile test result for an infill rate of 40%.

From the fig.4 and fig.5,it can be concluded that the strength is proportional to the mass of the specimen . A higher level of density resulted in a lower amount of voids in the infill, and subsequently, higher tensile strength, where at 20% density, the tensile strength is the lowest, but at 100%, the value is the highest of all of the results.