High Strength‐per‐Weight Cellular Metals Fabricated of Wires

In pursuit of high specific strength cellular metals, the authors have examined compressive strength of Wire-woven Bulk Kagome (WBK) specimens composed of two different wires, i.e., aluminum alloy wires and spring steel wires. Compression tests give the strength of 1.8 MPa at a density of 0.096 Mg/m3 for the former and 7.1 MPa at 0.271 Mg/m3 for the latter. These two WBK specimens outperform most competitors of metal foams with respect to specific strength. In comparison with other Periodic Cellular Metals (PCMs), even though the relative density of the two WBK specimens is substantially lower, their compressive strength and energy absorptions are comparable to those of the square honeycomb and the pyramidal core, which are known as ones of the best PCMs.