Jesus, MarianaLobo, Paulo Silva2023-11-162023-11-162022Jesus, M., & Lobo, P. S. (2022). Accuracy of models of confined concrete in rectangular columns using different proposals for the prediction of failure of the FRP. Procedia Structural Integrity, 42, 1074-1081.http://hdl.handle.net/10400.13/5388Confinement with externally applied fiber reinforced polymers (FRP), such as carbon, glass and aramid-based composites, results in notorious improvement of ductility and strength. Several constitutive models, regarding stress–strain relationship, have been proposed. However, few models exist for square and rectangular columns confined with FRP when compared with the number of models for circular concrete columns, and even fewer models satisfactorily predict the failure strain of FRP. In this paper, the accuracy of existing models for the prediction of the failure strain of the FRP is evaluated. Comparison of analytical results with experimental test results of concrete columns reported in the literature is presented, focusing different parameters such as strength, maximum strain and strain energy density.engFailure strainFRP sheetsConfinement.Faculdade de Ciências Exatas e da Engenhariajournal article10.1016/j.prostr.2022.12.136