Deceleration Behavior of Super-Lightweight XPS Foams: Number of Layers Effect

The design of a lightweight structure is extensively researched and implemented in various industries, especially in aircraft applications, and is tied to the green aviation concept. Because a smaller mass requires less lift force and thrust during flight, reducing the weight of an aircraft is an effective way to improve energy efficiency and reduce fuel consumption. In this study, the deceleration properties of XPS foam materials used in the core of composite structures are investigated. The effect of the gradual increase of XPS layers on its deceleration property was discussed. The deceleration of the designed specimens was measured by a drop-tower impact system. The results showed that increasing only two grams while reducing the deceleration of the samples five times on the scale of ten layers.