Issue 72

N. Naboulsi et alii, Fracture and Structural Integrity, 72 (2025) 247-262; DOI: 10.3221/IGF-ESIS.72.18

Figure 9: The effect of crosshead speed on the stress-strain curves of conductive PLA printed samples.

Crosshead Speeds (mm/min) Maximal stress (MPa) Breaking strength (MPa)

5

10

15

20

25

50

70

100

150

200

19.315 19.301

20.436 20.416

22.067 22.067

23.061 23.061

23.319 23.319

24.347 24.347

24.522 24.522

24.781 24.781

25.075 25.075

27.277 27.277

Elongation (%)

8.065

7.836

7.105

6.826

6.726

6.554

6.344

6.176

5.851

5.704

Table 2: Effects of crosshead speed on the mechanical characteristics of conductive PLA.

Figure 10: Progression of stress-strain based on crosshead speeds evolution on PLA-CB .

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