ABSTRACT

Sandwich structures are hybrid structures and it is made up of very strong face sheets in between the soft core, which are glued together using an adhesive. The thickness of the strong face sheets is usually very small compared to the depth of the core. The aim of such a structure is to absorb the impact energy, that is, the strong face sheet transfers all impact energy to the soft core through inter-laminar shear effect and the soft core undergoes large deformation to absorb the impact energy. The face sheet can be metal or composites, while the core can again be metal or foam. A typical sandwich structure is shown in Figure 9.1.