Abstract:
An aircraft stringer lay-up assembly is provided comprising a contoured curing block and a first mandrel element positioned thereon. The first mandrel assembly includes a first bar assembly having a plurality of rigidity reducing first slots formed along a first mandrel length. The plurality of rigidity reducing first slots protruding partially through a first mandrel depth of the first mandrel element to allow the first bar assembly to conform to the contoured curing block. A composite ply assembly is laid up onto the first mandrel element and cured while conformed to said contoured curing block such that a contoured composite stringer element is generated
Abstract:
An aircraft panel assembly (10) is provided, including a panel core (28), a plurality of pre-preg layers (30) surrounding the panel core (28) forming an internal layer of plies, at least one metal foil layer (38) positioned on an outer layer of the internal layer of plies. The at least one metal foil layer (38) providing an electrical conduit between the outer surface (24) of the aircraft panel assembly (10) and sub-structure (26) for grounding.