Finite element simulations of the flexural response of CFSTs

摘要

This paper aims to capture the flexural behavior of CFSTs using a nonlinear 3D finite element model. The finite element model is developed using the commercial software ABAQUS. The results obtained from the FE model are validated using the results of the experimental program that was conducted by the same authors. The experimental program is conducted using 4 point bending test of 3 circular CFST beams. Since the FE model results are verified, the model can be used to conduct a parametric study on the flexural behavior of circular CFSTs beams in the future. The results of the FE model showed very good agreements with the experiments in terms of the moment capacity, moment vs mid-span deflection curves and the failure mechanism for all circular CFSTs beams.