Abstract: A door assembly for a vehicle, the door assembly comprising: a door; a stiffening structure fixed to a surface of the door, the stiffening structure comprising a first wall spaced apart from and substantially parallel to the surface of the door, and first side walls extending between the first wall and the surface of the door; and a hinge member comprising a base portion and a hinge arm extending from the base portion; wherein the base portion comprises a second wall and second side walls extending from the second wall, the second wall and second side walls defining a volume; at least a part of the stiffening structure is located in the volume; and outer surfaces of the first side walls are bonded to internal surfaces of the second side walls.

Abstract: A structural assembly (900) and method of fabricating the same, the method comprising: providing a first member (204) comprising a bond surface (800) and a plurality of protrusions (802) extending from the bond surface (800), a length of each of the protrusions (802) from the bond surface (800) being less than or equal to 2 mm; providing a second member (202) comprising a fibre-reinforced composite material, the fibre-reinforced composite material comprising a plurality of elongate fibres (902) embedded in a polymer matrix (904); while the polymer matrix (904) is in its plastic state, forcing the second member (202) against the bond surface (800) and the protrusions (802) so as to cause the second member (202) to form onto the bond surface (800) and the protrusions (802); and thereafter causing the polymer matrix (904) to harden, thereby fixing the first member (204) to the bond surface of the second member (202).