Comparison of Flexural Behaviour of Composite FRP with UHPC I-Beam Using Finite Element Analysis

Abstract

Concrete can be considered as the ultimate construction material since it is the most widely used in the construction materials due to its extensive strength and reasonable cost. Recent years, large investments have been spent for studies on the new advanced materials to enhance the performance and functionality of conventional concrete especially for bridge structure. The application of Ultra-high-performance concrete (UHPC) as advanced materials in bridge application is well established since it able to construct 100m long highway bridge without reinforcement, while fiber reinforced polymers (FRP) required some studies on the optimum composition for bridge application. In this paper, A33 composite FRP from the previous research is studied under 4-point bending test to study the flexural behavior and compared to the UHPC. Three-dimensional finite element analysis of FRP and UHPC I-beam are modelled using Abaqus software to determine and compare the beam deflection and stress. The deflection and stress UHPC and FRP I-beam model being validated with experimental result of four-point bending test and theoretical of equivalent method in previous research. The results from the analytical and experimental are compared and shows good agreements. The presented modeling offers an economical and efficient tool to investigate the structural performance of FRP and UHPC in construction materials.

Analysis of tangential characteristics of the paraboloidal contact model

“…These models include the indentation model for a rigid sphere with an elastic plane, 32 the indentation model for an elastic sphere with a rigid plane, [33][34][35][36] and the two elastic sphere contact models. 37,38 In the elastic phase for two elastic spheres in contact, Hertz 1 provided an analytical solution in closed form. However, his theory can only be used in the elastic phase where no plastic deformation occurs.…”

“…In recent studies, some researchers have employed numerical simulation methods to analyze engineering problems. Saidin et al 1 used Abaqus software for three-dimensional finite element analysis of fiber reinforced polymers (FRP) and ultra-high-performance concrete (UHPC) I-beams to determine and compare beam deflection and stress. Moreover, the authors verified the results with the theory of equivalent methods obtained by previous researchers.…”