Finite element analysis of grouted cylindrical wedge anchors for prestressed CFRP plates

In current research, the anchoring performance of prestressed Carbon Fiber Reinforced Polymer (CFRP) plate anchors is primarily acquired through experimental methods, which makes it difficult to capture the internal deformation and stress distribution of the anchor. In this paper, a model of a grouted cylindrical wedge anchor for prestressed CFRP plates is established using the finite element analysis software ABAQUS. The simulation replicates the processes of anchor relaxation at the release end and the second tensioning at the tensioning end, using a geometrically nonlinear static general analysis step. This approach yields the shear stress distribution at the interface between the internal adhesive and the carbon fiber plate, as well as the deformation and normal stress distribution within the carbon fiber plate. The analysis results provide technical support and theoretical backing for experiments and research on prestressed CFRP plate grouted cylindrical wedge anchors.