On the Deformation of Parallelogrammic Sandwich Panels

Sandwich panels are utilised quite often in aircraft and missile structures mainly because of their high strength to weight ratio. The core of the panel, made of light material such as balsa wood or synthetic material, stabilises the face skin sheet which is usually metallic, and contributes to the shear strength of the section. Rectangular sandwich panels have been analysed by various investigators. In particular, Reissner deduced the range of linearity of deflections as a function of the core rigidity relative to that of the face skin. Results for parallelogrammic sandwich panels, however, are not available.