FE Models of GFRP and CFRP Strengthening of Reinforced Concrete Beams

Table 2

Summary of material properties for FRP composites [9].

FRP composite (𝟏)	Elastic modulus (GPa) (2)	Major Poisson’s ratio (3)	Limiting stress (MPa) (4)	Limiting strain (5)	Shear modulus (GPa) (6)	Thickness of sheet (mm) (7)
Carbon fiber-reinforced polymer (CFRP) laminate	𝐸𝑥=62.0	𝑣𝑥𝑦=.220			𝐺𝑥𝑦=3.27
	𝐸𝑦=4.83	𝑣𝑥𝑧=.220	760	0.012	𝐺𝑥𝑧=3.27	1.0
	𝐸𝑧=4.83	𝑣𝑦𝑧=.300			𝐺𝑦𝑧=1.86^∗
Glass fiber-reinforced polymer (GFRP) laminate	𝐸𝑥=20.7	𝑣𝑥𝑦=0.260			𝐺𝑥𝑦=1.52
	𝐸𝑦=6.89	𝑣𝑥𝑧=0.260	414	0.02	𝐺𝑥𝑧=1.52	1.3
	𝐸𝑧=6.89	𝑣𝑦𝑧=0.300			𝐺𝑦𝑧=2.65^∗

*𝐺_𝑦𝑧=(𝐸_𝑦or𝑧)/2(1+𝜈_𝑦𝑧).