Effects of Gaps between Discontinuous Wire Woven Kagome Cores upon Bending of Sandwich Panels

WBK (Wire-woven Bulk Kagome) is a periodic cellular metal assembled of helical wires. The mechanical behavior under compression or shear, optimal design of a sandwich panel with WBK core, and characteristics of heat dissipation media have been studied, which proves feasibility of WBK as core material with multi-function capability. When WBK is used as the core material in a large scale sandwich panel, gaps between discontinuous cores are inevitable in their fabrication or building even larger scale structures using them. In this study, the effects of the gaps on mechanical behavior of sandwich panels are investigated. Theoretic analysis, experiments with three-point bending, and numerical analyses are performed to predict the strength and to analyze the results