Aerospace structure having a cast-in-place noncompressible void

Details Aerospace structure having a cast-in-place noncompressible void Aerospace structure having a cast-in-place noncompressible void

1987-03-13

1989-08-29

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

244131, 244132, 277179, 277DIG6, 428164, 428223, 428323, 428327, 428328, 428329, 428331, 428412, 428413, 428 44D, 428448, 4284735, 4284744, 428480, 428500, 428403, B32B 300, B64C 106

Patent

active

048616435

ABSTRACT:
An aerospace structure and method for its construction composed of two elements having mutually opposed mating surfaces, at least one of which is irregular. The mating surfaces of the elements are fastened and compressed against a noncompressible cast-in-place void filler having complimentary shape to the two mating surfaces. The void filler is prepared by admixing a polymerizing matrix selected from polyesters, epoxides, polyamides, polyimides, polycarbonates, polyvinyl alcohols and organosilicone polymers and a space filling material selected from phenolic microspheres, carbon microspheres, metal coated microspheres, chopped fiberglass, alumina, fumed silica and mixtures thereof.

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