Numerical Modeling of the Bond Behavior Between Thermoplastic FRP Lattice and Concrete

Replacing steel bars with fiber-reinforced polymer (FRP) bars is widely acceptable as a potential solution to eliminate the corrosion problem in reinforced concrete structures. This paper examines another option to resolve this problem, which utilizes a novel composite lattice material manufactured by WEAV3D Inc. The composite lattice is manufactured by weaving and bonding thermoplastic FRP tapes using an innovative lattice-forming process. Accurate representation of the bond between this lattice and concrete is needed to be able to utilize it in structural concrete elements. In this paper, numerical modeling of the bond between WEAV3D composite lattice and concrete is examined. The model predictions were validated using experimental data.