Abstract
In this study, the compressive yield stresses of phenolic-dipped Nomex ® rings were scaled and correlated to honeycomb core. A honeycomb-scaling factor and geometric end constraint factor were found to relate the rings and core through the relative yield stresses and their physical dimensions and properties of the honeycomb materials. The compressive properties of the Nomex rings were also investigated using both a model and a commercial phenolic honeycomb dip resin. The Nomex rings manufactured from the model resin were found to have higher compressive properties. These properties were attributed to the higher fracture toughness of the resin, and both resins were found to accurately scale from rings to core with the honeycomb-scaling factor. Ultimately, this research can be used to innovate and efficiently characterize the compressive properties of different honeycomb webs and dip resins without having to make the significant investment of time and resources associated with large scale honeycomb testing.
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