Biscuit joint repair of continuous UD structural elements
AssigneeAirbus Operations GmbH
InventorsJohn Martin Gaitonde, Chris Heaysman
Life of this patent
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Abstract
A method of repairing a composite beam having a longitudinal direction including: removing material from a damaged area of the composite beam to form a cut out region; machining a plurality of elongate slots into the composite beam, the elongate slots each having a length in the longitudinal direction of the composite beam and spanning across the damaged area, the elongate slots extending into the composite beam to a depth greater than a depth of the cut out region; introducing a plurality of reinforcing inserts into the respective elongate slots and fixing the reinforcing inserts into the slots with adhesive.
Claims18
A method of repairing a composite beam having a longitudinal direction, the method comprising:
- removing material from a damaged area of the composite beam to form a cut-out region;
- machining a plurality of elongate slots into the composite beam, the elongate slots each having a length in the longitudinal direction of the composite beam and spanning across the damaged area, the elongate slots extending into the composite beam through the cut-out region and the damaged area, and to a depth greater than a depth of the damaged area and the cut-out region;
- and
- introducing a plurality of reinforcing inserts into the respective elongate slots and fixing the reinforcing inserts into the slots with adhesive.
A method of repairing a composite beam having a longitudinal direction, the method comprising:
- removing material from a damaged area of the composite beam to form a cut-out region;
- machining a plurality of elongate slots into the composite beam, the elongate slots each having a length in the longitudinal direction of the composite beam and spanning across the damaged area, the elongate slots extending into the composite beam to a depth greater than a depth of the cut-out region;
- and
- introducing a plurality of reinforcing inserts into the respective elongate slots and fixing the reinforcing inserts into the slots with adhesive,
- wherein a ratio of a length of each of the reinforcing inserts in the longitudinal direction to a length of the cut-out region in the longitudinal direction is at least 5:1.
Dependencies are inferred from the claim text.