Experimental Study on Shear Property of Integrated Sandwich Panel ofAluminum Honeycomb and Epoxy Resin

Abstract

In order to realize the functional integration, a new kind of sandwich panel was made. By carrying out quasi- static shear experiments, its elastic modulus and ultimate bearing capacity with different resin immersing thickness, thickness of additional layers of resin and thickness were investigated. And the load - displacement curves and failure morphology were obtained, which was compared with traditional aluminum honeycomb sandwich panel. The experiments indicate that the integrated aluminum honeycomb and epoxy resin sandwich panel's shearing process undergo three phases: elasticity, yield and destruction. The specimen's elastic modulus and ultimate bearing capacity increase with the increasing of the resin thickness, thickness of additional layers of resin and the thickness of the specimen, which have been greatly improved compared to the traditional sandwich structure. The composite layer and the core show good stability under shearing process, and there is no peeling-off or cracking between the composite layer and the core.