Experimental Characterization of Pressure Loss Caused by Flow Through Foldcore Sandwich Structures

Folded structures based on different tessellation types have been investigated as alternatives to conventional sandwich core materials like honeycombs and foams. Besides the mechanical performance offered by such foldcores, they feature some unique properties that can be used to integrate additional functionalities. One of these is the possibility to generate large cross-section channels within the sandwich core that can be used for gas and fluid transport. In this study, we present an experimental setup to measure pressure loss within foldcore sandwich panels, and compare results for seven different foldcore configurations.