Experimental-Numerical Analysis of the Effect of Bar Diameter on Bond in Pull-Out Test

Bar diameter is one of the basic factors affecting bond behavior, which still interest due to opposing opinions regarding its effect on behavior in pull-out test. This paper presents an experimental and numerical analysis ribbed reinforcing bar concrete. The aim was experimentally evaluate test perform simulations conducted experiments ABAQUS verify their convergence obtained results. used concrete C35/45 grade B500SP steel bars three diameters: 10, 12, 16 mm. FEA employed Concrete Damaged Plasticity (CDP) material model Contact Cohesive Behavior (CCB) method concrete–bar interface. study shows that significantly affects bond, both stress–slip relationship type failure, as well strength. correctly reflected observed specimens. analytical models presented estimates were too conservative maximum stress relative