Method of insetting predesigned disbond areas into composite lam

Details Method of insetting predesigned disbond areas into composite lam Method of insetting predesigned disbond areas into composite lam

1988-09-23

1990-05-08

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156249, 156289, 156344, 427272, 427282, 427290, 428 40, B32B 3106, B32B 3118

Patent

active

049235451

ABSTRACT:
This invention is a process for producing composite laminates containing interlaminar disbonds of controlled sizes, shapes, and positions within a composite structure. A composite layer is provided for later inclusion within a laminate. The surfaces of this composite layer are solvent cleaned and sandblasted, except in desired disbond areas, which are coated with a releasing surface. A template to mask the bond areas is employed to obtain disbond areas of controlled shapes and sizes. The resulting composite layer is then used in the subsequent manufacture of a laminate, whereby faulty adhesion in the laminate can be studied with prior knowledge of the size, shape, and location of the disbond areas.

REFERENCES:
patent: 3193424 (1965-07-01), Scott
patent: 3996089 (1976-12-01), More et al.
patent: 4133919 (1979-01-01), Parsons
patent: 4345959 (1982-08-01), Asai et al.
patent: 4702786 (1987-10-01), Tollman
patent: 4762680 (1988-08-01), Pennance et al.

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