Table 3: Comparison of the maximum values obtained by the use of failure criteria for the adhesive interface and GFRP obtained by FE analysis.

Adhesive Interface Crit. GFRP failure Crit. FRP layup sequence FRP layup sequence [0]2 [0]4 [0]2 [0]4 Location of stresses   GFRP configuration (a) Arch-lower 0.80 8.81 0.21 0.2 Beam-lower 0.96 1.86 0.21 0.2 Arch-upper 0.014 0.47 12.30 13.79 Beam-upper 0.34 0.65 12.82 12.29   GFRP configuration (k) Arch-lower 0.66 25.65 0.15 0.16 Beam-lower 1.36 39.64 0.22 0.23 Arch-upper 0.99 3.70 0.15 0.16 Beam-upper 0.91 3.61 0.22 0.2

Arch/beam-lower: FRP applied onto the lower face of the arch/Beam. Arch/beam-upper: FRP applied onto the upper face of the arch/Beam.