What materials typically comprise the panels of a stressed-skin structure?

Stressed-skin structures derive their strength and rigidity from a composite panel that consists of two outer layers (or skins) and an inner layer (web) that adheres to the outer skins. The outer layers are typically made from wood or metal sheathing. When these materials are bonded together, they create a strong and lightweight construction system that effectively distributes loads across the entire surface. This method capitalizes on the structural benefits of the materials while minimizing the overall weight of the building component.

In this context, the combination of wood or metal sheathing and webs contributes significantly to the structural integrity and performance of the panel. The skins handle shear forces and bending moments, while the web provides additional support and stability, making this option the best fit for defining the composition of stressed-skin structures.