Evaluation of Flatwise Compression Strength of Stitched Foam Sandwich Panel

Abstract

In recent years, sandwich structures have been considered as viable engineering constructions. The use of composite structures in aerospace and civil structural applications have been increasing especially due to their extremely low weight that leads to reduction in the total weight , high flexural and corrosion resistance in addition to higher transverse shear stiffness. Flat wise compressive test was carried out to evaluate the compressive strength and modulus of elasticity of the sandwich panel with and without stitching. The panels were stitched in in the direction perpendicular to the plane of the panel with different pile orientation such as 90 0 , 45 0 , 90 0 /45 0 /90 0 and 90 0 /45 0. From the results it was observed that the compressive strength of 90 0 /45 0 /90 0 stitched foam sandwich panel is higher compared to other panels.