Abstract
In this study, two variations of WBC (Wire-woven Bulk Cross), named semi-WBC and straight-WBC, are introduced. In the variations, helically formed wires in an ordinary WBC are partly or totally replaced with straight wires to obtain higher shear strength and modulus, and the fabrication processes are modified to enhance productivity. Analytic solutions of the relative density, shear strength and modulus for the three variations of WBCs including the ordinary WBC with X-orientation are derived. And CAD modeling, shear tests and FEA were performed to prove the analytic solutions. The effects of the curviness of the struts loaded or floating between face sheets, and the offset at the joints are evaluated. The semi- and straight WBCs had equivalent shear strengths and moduli comparable to those of typical aluminum honeycombs, and all the three variations of WBCs maintained their strengths at low densities down to 1%.
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