Issue 62

D. D’Andrea et alii, Frattura ed Integrità Strutturale, 62 (2022) 75-90; DOI: 10.3221/IGF-ESIS.62.06

Figure 10: Fracture surfaces of raster angle 0° orientation specimens: a) ABS; b) PETG; c) PLA.

Figure 11: Fracture surfaces of raster angle 45° orientation specimens: a) ABS; b) PETG; c) PLA.

As regards the behaviour of the samples obtained with the orientation of the raster angle at 90°, is it possible to note a clearly different behaviour from the samples at 0° and 45°. First of all, since the fibres are oriented along the direction of the load, large areas of plasticization can be seen on the fracture surfaces (Fig. 12). In particular, by analysing the fracture

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