Ultra-lightweight CFRP cores made by interlocking method: fabrication and evaluation

RAPP, HELMUT; VITALE, JUAN PABLO; STOCCHI ARIEL; FRANCUCCI, GASTON

Munich

Conferencia; ECCM17 -17th European conference on Composite Materials; 2016

European Society for Composite Materials

AbstractThe development of ultra-light weight cores applied in sandwich structures, as the 3-dimensional carbon fiber reinforced polymer cores (CFRP), have the potential to reduce the structural mass of the upcoming vehicles used in the transportation and aerospace industry, increasing capabilities, performance andreducing fuel consumption. In this work, carbon fiber cores are obtained using a interlocking method from flat composite laminates. The mechanical performances such as the compressive and shear strength of three different geometries? cores are evaluated. Furthermore, failure modes are studied. Results arecompared to those predicted by an analytical model and finite element method analysis (FEM). The research given provides useful insights on new ways to obtain 3D sandwich cores with very low density, for designers and future investigations.