FLEXURAL BEHAVIOR OF 3D SANDWICH COMPOSITE PANELS

Abstract

Analysis of behavior of 3D Sandwich Composite Panel (3DSCP) subjected to flexure is carried out using Finite Element software ABAQUS. Results are compared to experimental results. Effect of shear connectors on behavior of 3DSCP is studied. Volumetric ratio of shear connectors is increased by increasing Shear connectors diameter or by reducing spacing among them. Improvements are analyzed via strain distribution, load bearing capacity and deflection. A simplified analysis method of 3DSCP subjected to flexure is studied. Behavior of solid concrete slabs that has thickness equals to sum of both concrete layers of 3DSCP are studied using ABAQUS. At the same load and having the same length, Deflection ratio is considered stiffness ratio that correlates behavior of both samples. Stiffness ratio is proposed to be used as stiffness modifier for the shell element to yield the same behavior of 3D sandwich composite panel. Value for the stiffness modifier is proposed.