Simulation and Optimization of all-fiber-reinforced truss-like sandwich core structures

Abstract

Truss-like sandwich core structures based on metal structures, textile and wire cores as well as spacer fabrics have a high lightweight potential due to their outstanding mechanical performance and the possibility to integrate functional elements in the core. Nevertheless, specific challenges arise and must be understood in the field of the production, layout, dimensioning and optimization of the charac-teristic local support of the face sheets. The presentation deals with the numerical simulation and optimization of all-fiber-reinforced sandwich panels with truss-like sandwich cores based on the comparison with out-of-plane compression, tension and shear test. The core structures are built up by stitching wires through the face sheets and a detachable auxiliary core.