Repair of composite laminates

Details Repair of composite laminates Repair of composite laminates

1997-10-28

2000-11-21

Stemmer, Daniel

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

2940209, 156 98, 156 87, 425 11, 425 14, 428137, B29C 7310, B29C 7330

Patent

active

061497495

ABSTRACT:
A patch of fibre reinforced plastics composite material, a repair kit including such a patch and a method of using such a patch and repair kit are provided. The patch (1) is for attachment to a surface (17) of a fibre reinforced plastics composite structure (11) over an area of damage (10) to the structure. The patch defines an outer surface (3), a bonding surface (4) opposed thereto and a peripheral edge. The patch includes fibre reinforcement and plastics matrix material with the latter being in a final state of hardness. The patch defines a series of small apertures (6) therethrough to allow the passage of gases and other matter through the patch to prevent entrapped air weakening the repair.

REFERENCES:
patent: 3798690 (1974-03-01), Moore
patent: 4528230 (1985-07-01), Larson
patent: 4554036 (1985-11-01), Newsom
patent: 4800054 (1989-01-01), Roestenberg
patent: 4817538 (1989-04-01), Michaelsen
patent: 5374388 (1994-12-01), Frailey
patent: 5620768 (1997-04-01), Hoffmann
patent: 5868886 (1999-02-01), Alston
Klein, Allen J., ed., "Repair of Composites", Advanced Composites, Jul./Aug. 1987.
Heimerdinger et al., "Repair Technology for Thermoplastic Aircraft Structures", Advisory Group for Aerospace Development, Acard, Seville, Spain, Oct. 1994.

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