The Database contains stiffness and strength data for core materials typically used for composite sandwich applications.
A sandwich structure is a special class of composite materials that is fabricated by attaching two thin but stiff skins to a lightweight but thick core.
The core material is normally low strength material, but its higher thickness provides the sandwich composite with high bending stiffness with overall low density.
To a good approximation, the face sheets carry the bending and in-plane loads, whilst the cvore carries transverse shear.
Commonly used materials for a sandwich are metallic or composite face sheets with a foam core made from a polymeric or metallic foam or wood.