BEHAVIOUR OF FRP STIFFENED PANELS SUBJECTED TO IN PLANE AND LATERAL LOADING

Abstract

This time, FRP is gaining popularity in civil engineering and various applications due to their light weight, specific strength per unite weight and high stiffness in particular direction.FRP, being a high strength material, the thickness required to satisfy the strength constraint is very less resulting in a thin walled structure where the design is governed by stability requirements. Behavior of stiffened graphite epoxy FRP panel is analyzed for buckling load due in-plane loading and deflection due to lateral and combined loading on the panel. In this paper different FRP panel is analyzed with variation in fiber orientation, thickness of ply, boundary conditions and aspect ratio of panel to determine behaviour of the panel by using ABQUS 6.9-3 software which is based on finite element method of analysis. The effect of fiber orientation of ply and decreasing thickness of ply to determination of minimum thickness of the ply is required for buckling and bending behaviour of thin walled stiffened FRP panel. To determine buckling load per unite weight of different FRP panel with change of various parameter of the panel. To find out variation of maximum deflection of FRP panel due to change of aspect ratio of the panel with variation of ply orientation of panel and finally find out maximum deflection of FRP panel is constant with different aspect ratio for different ply orientation. i.e. load transfer through shortest span of the panel with different aspect ratio of FRP panel for different ply orientation.