Single piles are mainly used as foundations in offshore structures, including the foundation of offshore wind turbines. In offshore structures, loading is usually periodic, so the discussion of periodic loading in soils is one of the important issues in geotechnical engineering. The complexities of soil behavior in different conditions have led to the discussion of the need for soil behavioral models with realistic predictive behavior in soil. To predict soil behavior, it is important to use appropriate software and a behavioral model that can accurately predict soil behavior. In this research, the FLAC3D software, which is a software for numerical modeling of advanced geotechnical analyzes of soil, rock and earth in two and three dimensions, as well as to predict soil behavior, the bounding surface model that has been used to study soil behavior during periodic loading. Modeling a small-scale phenomenon is a relatively inexpensive and convenient way to study its behavior, which is widely used in various fields of engineering; But in geotechnics, the behavior of a phenomenon is usually affected by the stress level, and by modeling it on a small scale, the stress levels of the model change from the actual sample and the correct results are not obtained; Therefore, using a centrifuge for modeling in geotechnics is one of the safest methods. The combination of numerical and laboratory methods leads to a better design that is considered for modeling a combination of numerical and laboratory results in the designs, and in the present study, the experiments performed in the device have been tried. Centrifuges are performed on piles to be modeled using the boundary surface behavioral model in the software. By modeling the pile in periodic loads, it was found that the model predicts residual strain, and with increasing the number of load cycles, the minimum and maximum displacement of the pile, as in centrifuge experiments, gradually increases, indicating that this model allows the reproduction of periodic behavior. Then, the displacement load diagrams for numerical modeling and centrifugation were compared. Also, the load-displacement diagrams were compared for Toyoura and Fontainebleau sands. Key Words bounding surface model - single piles - centrifuge - periodic loading - residual strain