Table 1.

Engineering constants for GFRP.

Material	E11	E22, E33	G12	G23	ν12	ν23	ρ	V
	GPa	GPa	GPa	GPa	-	-	kg/m3	%
Glass fiber	75.0	75.0	30.70	30.70	0.22	0.22	2600	50
Epoxy	3.40	3.40	1.30	1.30	0.35	0.35	1250	50
GFRP	39.20	7.75	3.41	2.82	0.29	0.37	1925	-

Where E represents the Young’s modulus, G represents the shear modulus, ν represents the Poisson’s ratio, ρ is the density, and V is the volume fraction.