Abstract
Abstract This paper offers a finite element method (FEM) to simulate the behavior of steel fiber reinforced concrete (SFRC) beams with corrosion of the longitudinal reinforcement using the ABAQUS package. This work was undertaken with the concrete damaged plasticity model (CDP). The expansion of corrosion product was utilized to represent the steel-concrete boundary to study the behavior of SFRC beams. Three beams with three volume fractions of steel fiber (0.8 %, 1.2 %, and 1.8 %) and three reinforced concrete (RC) beams with and without stirrups were created and tested under four-point loading to assess the shear capacity of beams. Corrosion of rebars at one of the RC beams that does not contain shear reinforcements will be studied. The crack patterns and load deflections of these beams were compared with experimental results found by the authors. The conclusions of this analysis will be valuable in considering the structural behavior of SFRC structures with uniform steel bar corrosion using FEM. Analytical results showed that the suggested model is qualified in better simulation and in accuracy of numerical and experimental results. The differences between analytical and experimental results were less than 8 % for load carrying capacity and 14 % for deflection; these differences are also satisfactory within the limits of the engineering conclusion.
Highlights
Steel fiber reinforced concrete is a combined material that can be modelled in finite element analysis
This difference was because, numerically, the corrosive effect of the expansion and stress debonding was taken as a uniform distribution along the corrosive zone, while the distribution of the corrosion is non-uniform, and some pitting zones may appear that was experimentally noted after extracting the rebars from beams which were exposed to accelerated corrosion process; the bridging action of steel fibers is not represented in the numerical analyses
2) The load carrying capacity of steel fiber reinforced concrete (SFRC) beams increased with the increasing the volume fraction of steel fiber
Summary
Steel fiber reinforced concrete is a combined material that can be modelled in finite element analysis. Accurate material models using the finite element method have to certainly be reasonable at demonstrating behavior of concrete under compressive and tensile strength. Several of finite element (FE) simulations have been established to define the nonlinear behavior of RC or SFRC structural regulations with static and dynamic loading without corrosion effect. RC configurations successfully, mechanical damage due to corrosion cracks [9 - 12] simulated by nonlinear finite element analysis of SFRC beams exhibited to static loading were examine using the ADINA, ANSYS, and ABAQUS program. The concrete damage plasticity was adopted to represent SFRC properties and expansion properties to denote the rust material surrounding the steel rebars as a corrosion product
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
