PSI - Issue 77

Sergio Cicero et al. / Procedia Structural Integrity 77 (2026) 56–63 Sergio Cicero et al./ Structural Integrity Procedia 00 (2026) 000 – 000

62

7

2.5

2.0

1.5

K N mat / K mat

1.0

0.5

0.0

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

ρ 1/2 (mm 1/2 ) ABS 45/-45 PLA 45/-45 ASA 45/-45

ABS 0/90 PLA 0/90 ASA 0/90

ABS 30/-60 PLA 30/-60 ASA 30/-60

PLA-Gr 0/90 ASA-CF 0/90

PLA-Gr 45/-45 ASA-CF 45/-45

PLA-Gr 30/-60 ASA-CF 30/-60

Figure 3. Normalized results of the apparent fracture toughness fitting curves.

Table 2. L values for the different materials analyzed in this work. Material Raster Orient. L (mm)

0/90

0.92 0.55 0.46 0.52 0.15 0.67 1.68 1.29 1.50 0.67 1.06 1.15 2.45 0.61 0.78

ABS

45/-45 30/-60

0/90

PLA

45/-45 30/-60

0/90

ASA

45/-45 30/-60

0/90

PLA-Gr

45/-45 30/-60

0/90

ASA-CF

45/-45 30/-60