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. 2021 Oct 26;13(21):3684. doi: 10.3390/polym13213684
bc width of concrete
bf width of CFRP composite
Ec elastic modulus of concrete
Ef elastic modulus of CFRP composite
L bond length of CFRP-concrete joint
Leff effective bond length
P external tensile load at the load end
Pa anchor force at the anchor end
Pb bond force
Pd bond failure load
Pa,d anchoring force corresponding to the bond failure load
Pb,d bond force corresponding to the bond failure load
s slip or relative displacement between the CFRP and the concrete
sd slip corresponding to the bond failure load
tc thickness of concrete
tf thickness of CFRP composite
uc displacement of the concrete
uf displacement of CFRP composite
α ratio of anchor load to external load
ε0 strain in the CFRP composite at the anchor end
εc strain in concrete
εf strain in the CFRP composite
τ interfacial bond stress
τf bond strength of CFRP-concrete Joint
σc stress of the concrete
σf stress of the CFRP composite