Issue 78

N. Naboulsi et alii, Fracture and Structural Integrity, 78 (2026) 74-95; DOI: 10.3221/IGF-ESIS.78.05

Fig. 4 shows tensile specimens printed at 90°, 45°, and 0°, with dimensions conforming to ISO 527-2 Type 5A. Fig. 5 presents tensile specimens printed at 90°, 45°, and 0° with different infill densities, before and after tensile testing, as well as an example of a specimen subjected to uniaxial tensile loading.

Material

Infill density

Printing Orientation

Number of specimens

0°

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

20%

45° 90° 45° 90° 0° 45° 90° 45° 90° 45° 90° 45° 90° 0° 0° 0° 0°

40%

PLA-CB

60%

80%

100%

Pure PLA (As a reference)

100%

5 Table 2: Experimental matrix of tensile tests performed on PLA-CB and pure PLA specimens.

Figure 4: Tensile specimens printed at 90°, 45°, and 0°, with dimensions according to ISO 527-2 type 5A.

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