In this paper results of low velocity impact tests on sandwich panels are presented. All investigated panels have the same quasi isotropic CFRP-face sheets. Goal of this work was to investigate the impact behaviour of panels having different cores. Besides Nomex honeycomb core, slotted Nomex honeycomb core, and slotted Aramid honeycomb core, foam cores with embedded CFRPpins (X-core and K-core, see Fig. 1 from [
]) are investigated. The pins are connected to the top layers to reinforce the panels mechanical properties.
X-core and K-core structures .