A composite structure comprising a composite structural member 203, a metal layer 407 disposed in or on the surface of the structural member, a sealant layer 207 disposed on the surface of the structural member and a metallic layer 213 disposed on the sealant layer and configured with an overlap of the metal layer. The sealant layer may also overlap the metal layer. The metal layer may comprise a fastener region 411 in which one or more fasteners 401 may be location and the extent of the metallic layer is spaced from the fastener region. The sealant layer may be discrete from the structural member and may be resiliently deformable and impact resistant. The sealant layer may comprise one or more polyurethanes or may comprise a varnish. The metallic layer may comprise a film, which may be thermally applies and may comprise aluminium, copper, silver, zinc or nickel. The structural member may comprise carbon fibre reinforced plastic CFRP. The structure may be used on aircraft to dissipate electrical charge from lighting strikes. Also included are method claims for producing such a composite structure.
A structure formed from composite material
2017-06-21
Patent
Electronic Resource
English
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |