Parametric Study of Shear Stress Along Fiber Reinforced Plastic and Concrete Bonded Interface

Abstract

Abstract-The characteristics of the fiber reinforced plastic (FRP) and concrete bonded interface directly decided the results of structural reinforcement. The shear test was well simulated, and the shear stress distribution along the bonded interface was obtained by using 2D and 3D finite element method. The parametric study of influential factors (e.g., Young's moduli, shear moduli, and thickness, etc) on shear stress of the FRPconcrete bonded interface was discussed, and the influence of stress concentration on the interfacial shear stress distribution characteristics was gained. The results are very useful for designing the shear-resisting bonding strength test as well as characterizing the FRP-strengthened concrete bonded interface.