1. Benefits of sandwiches

Sandwich materials are booming, both in terms of applications and technologies. They are widely used in all industrial sectors, including transport, marine, nautical, aeronautical, aerospace, sports and leisure, heavy industry, civil engineering and the military. Their consumption continues to grow.

Sandwiches are ideal for applications requiring both rigidity and lightness. They are made up (figure 1 ) of two skins (or flanges) separated from each other by a hollow or solid core (figure