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Stiffness ratio 1 1.03 1.5 1.3 13 21
Bending stiffness×10 3 mm 2 ) (N 390.4 404.48 615.68 508.16 5124 8517.6
[47] Flexural modulus (GPa) 6.10 6.32 9.62 7.94 6.50 10.15
laminates Gain/loss strength
sandwich % in – 9 40 18.8 18 60
and
FRP Flexural strength (MPa) 101 110 142 120 119 162
of (N)
properties Measured load failure 96 128 166 145 199 238
Mechanical Sample (control sample)
2.10 code GF0 GF2 GF4 GF6 SF0 SF4
Table no. S. 1 2 3 4 5 6
