What is the meaning of structural sandwich construction?

Question

What is the meaning of structural sandwich construction?

Answer 1

it means that there are different types of materials used. It can be that the one on the outside will be for resistance to corrosion, then the second layer would be the strength of the structure, and the third is something like to resist heat.

Or it could be that all the components are part of the structure, and complement each other some how.

Either way, its different materials binded (layered) together

Answer 2

Its a scheme for bonding stress carrying skins around a light compression resistant core.

It gives a lot of strength and rigidity for lower weight.

Answer 3

A core sandwiched between two sheets of metal. The core could be of a material other than the enclosing sheets. Normally, the core of made of a fibrous substance. This system is used to lighten the weight of the structure, yet giving it rigidity and torsional stiffness.