Flexural Behaviour of Skew Sandwich plate with Soft Core

Abstract

A sandwich panel is a composite lightweight structure used for roofing, partition in civil engineering. Sandwich panels can reduce the weight of the structure and offers thermal, acoustic and strength properties. Sandwich panel consists of three layers in which the skin layer called faces bounded to the lightweight layer called core. The bonding between these layers is maintained with adhesive joints such as epoxy resins, phenolics, polyutheranes, etc to transfer the load between the layers. The skin layers are thin resisting the shear force and core material is light density material resist the movement of the faces. Flexural behavior of the sandwich panel is analyzed using a finite element model in ABAQUS software. The finite element sandwich model is created using shell elements in an arrangement of three layers (two faces and a core layer in the middle). The present FE model is validated with published results. The sandwich panel with various skew angles is analyzed for an extension with different boundary conditions, aspect ratio and thickness.