Composite structures

Details Composite structures Composite structures

1979-03-14

1981-03-10

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428109, 428110, 428112, 428114, 428902, 416230, B32B 512

Patent

active

042554780

ABSTRACT:
A composite structure is fabricated from fiber-reinforced tape, segments of the tape being stacked one upon another so as to form a plurality of plies. A boron fiber is positioned adjacent to or along an edge of each of the tape segments. Because of the X-ray opacity of the boron fiber's tungsten boride core and because the boron fiber will break when a ply is damaged, damage to the composite structure can be detected by radiographic examination.

REFERENCES:
patent: 3672936 (1972-06-01), Ehrenreich
patent: 3676200 (1972-07-01), Rembold et al.
patent: 3700535 (1972-10-01), McCoy et al.
patent: 3768760 (1973-10-01), Jensen
patent: 3853610 (1974-12-01), Byrne
patent: 3956564 (1976-05-01), Hillig

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