Strength Analysis of Sandwich Panels by Considering the Shape Effect of Grid Stiffened Core
D. Mahalakshmi
M.Tech CAD/CAM (Pursuing), Pragati Engineering Collage, Surampalem , IN
A.V.Ramana Rao
M.Tech CAD/CAM (Pursuing), Pragati Engineering Collage, Surampalem , IN
G. Panduranga
M.Tech CAD/CAM (Pursuing), Pragati Engineering Collage, Surampalem , IN
Keywords: sandwich composite, Honeycomb Core, Rectangular Core, cell shape of core, 3-Point bending, Catia V5, Ansys R18.1.
Abstract
A sandwich-structured composite is a special case of composite material which consist two stiff and strong skins or faces separated by a thick light weight core. The core is normally having very low strength, but its higher thickness provides the sandwich composite with high bending stiffness with overall low density. This construction is one of the most valued structural engineering innovations developed in the composite industry. It finds its applications in industries like aerospace, transportation rails etc. In the current application static 3-point bending tests were carried out in order to investigate deflection variations in honeycomb sandwich structure by varying the load and also its effect on cell shape of the core. The sandwich structure consisted of Aluminium honeycomb core with
stainless steel facing. Theoretical calculations and Simulation analysis are carried out by using Catia and Ansys to study the deflections for various loads. The obtained results are compared with experimental values.
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