Method for manufacturing a fibre composite component, fibre composite component, and structural component for an aircraft or spacecraft

A fibre composite component manufactured by a method comprising:

• preparing and positioning a single-piece foam body or the parts of a multi-part foam body, which comprises at least one recess which is open towards a first side of the foam body;
• prior to, during or after the positioning of the foam body or the parts thereof, arranging a rigidifying element for the backing structure or a preform or first semi-finished product for forming the rigidifying element in the recess at least in portions, in such a way that the rigidifying element or preform or first semi-finished product is placed against the foam body at least in portions;
• providing the skin portion or a second semi-finished product for forming the skin portion;
• bringing the skin portion or second semi-finished product into contact, in regions, with the foam body on the first side thereof and with the rigidifying element or preform or first semi-finished product, causing the skin portion or second semi-finished product to be placed against the foam body at least in portions and the rigidifying element or preform or first semi-finished product to be positioned relative to the skin portion or second semi-finished product;
• and
• further processing the skin portion or second semi-finished product and the rigidifying element or preform or first semi-finished product in contact therewith in such a way that a fibre composite component is obtained in which the skin portion and the rigidifying element are interconnected.

A structural component for an aircraft or spacecraft, comprising:

• a skin portion;
• a backing structure, which comprises at least one rigidifying element for rigidifying the skin portion and is arranged on a first side of the skin portion;
• and
• a foam component which is arranged on the first side of the skin portion and connected to the skin portion or the rigidifying element or both,
• wherein the foam component is formed on a side of the foam component remote from the skin portion by material-removing processing.