IMPACT RESISTANT SANDWICH STRUCTURE

The present invention refers to a sandwich structure architecture for high speed impact resistant structure (1), comprising sandwich skins which enclose a sandwich core (2) formed by a plurality of spacing layers (5) and a plurality of trigger layers (6), wherein these layers (5,6) are stacked alternatively in the core (2). The walls (6a) of the trigger layers (6) are thicker than the walls (5a) of the spacing layers (5) and/or the walls of the trigger layers include at least one part inclined with respect to the walls of the spacing layers. The spacing and the trigger layers (5,6) are made of the same type of material, preferably composite materials or metallic materials. The structure (1) is capable of absorbing high-speed impacts, and at the same time can be used as load carrying structure in aircraft fuselages, wings, vertical or horizontal stabilizers.