Bond Behavior between helically wrapped FRP rebars and concrete
Palavras-chave:
FRP rebars, FEM, Concrete, Abaqus, Bond behavior.Resumo
The bond behavior of FRP rebar embedded in concrete structures is influenced by many factors, such
as fiber type, fiber content, the diameter of the rebar, and concrete strength. The bond behavior of FRP rebars is
one of the major concerns in FRP applications as reinforcement in concrete structures. There are many studies in
this area because there is no standardization for the surface treatment of these rebars. Besides the experimental
analysis of the behavior of the rebars through pullout tests, numerical analyses are extremely necessary so that
more of the parameters that influence bond behavior can be varied and their influence analyzed. The aim of this
paper is to analyze the bond behavior of new FRP rebars developed. The numerical analysis will be carried out on
the finite element analyses program ABAQUS. The material of both the concrete block and the FRP rebar was
implemented as linear elastic until failure. For the interaction between the concrete block and the FRP rebars was
used the cohesive surface solution and the results obtained by the simulation were compared with experimental
results obtained by the authors.
