PSI - Issue 47

Francesco Ascione et al. / Procedia Structural Integrity 47 (2023) 826–841 Author name / Structural Integrity Procedia 00 (2019) 000–000

832

7

� � �� �� �� [MPa] [-] [-] [MPa]

Table 3. GFRP mechanical parameters. density

[g/cm 3 ]

[MPa]

1.9

24000

7000

0.07

0.23

3000

The GFRP components were modeled by four-node elements (CPS4R) with a 0.5 mm side length. The contact between the adhesive surfaces was modeled by cohesive laws (“surface to surface” interaction), in mode II only, while the contact between the GFRP elements, in the zone corresponding to the initial notch 80 mm long, was modeled by a “hard contact” formulation with no friction (Figure 6).

Fig. 5. Experimental P- δ curves for unaged and aged specimens with Araldite.

Fig. 6. View of the 2D Model.