Buckling behavior of interlaminar hybrid fiber metal laminate (HFMLs) subjected to uniaxial compressive loading

The aerospace industry witnessed the rapid increase in the usage of Fiber Metal Laminate (FMLs) for its higher load carrying capacity and many other advantages. The core material of FMLs made up of either glass or carbon fibers based on the type of application. One can achieve superior material property and economic in design by combining glass and carbon interlayer as a core material and the top and bottom by aluminum sheets, which forms a hybrid fibre metal laminates (HFMLs). In this investigation, the effect of different hybrid combinations on the vibration and buckling behavior of interlayer HFMLs have been studied by developing finite element formulation. The 9-noded heterosis plate element has been used to model the plate by incorporating the effect of shear deformation and rotary inertia. Sixteen different hybrid combinations have been considered to investigate the effect of ply orientation, boundary condition and aspect ratios of HFMLs. In each combination cross-ply, angle-ply and quasi isotropic layup schemes are considered to investigate the different parameters in detail and the results are discussed below. (C) 2020 Elsevier Ltd. All rights reserved.