ASSEMBLY OF PREPREGS FOR PRODUCING STRUCTURES, FOR EXAMPLE ONES WHICH DEPLOY THROUGH INFLATION

The invention relates to a method of assembling pre-impregnated plies by local isolated polymerization of the assembly region (30) under the action of a radiation to which the resin of the prepreg is sensitive. The assembly method makes it possible in particular to produce very large sized gossamer...

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Bibliographische Detailangaben
Hauptverfasser:	LACOUR, DOMINIQUE, DEFOORT, BRIGITTE, LE-COULS, OLIVIER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AIRCRAFT AVIATION CHEMISTRY COMPOSITIONS BASED THEREON COSMONAUTICS DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES VEHICLES OR EQUIPMENT THEREFOR WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a method of assembling pre-impregnated plies by local isolated polymerization of the assembly region (30) under the action of a radiation to which the resin of the prepreg is sensitive. The assembly method makes it possible in particular to produce very large sized gossamer structures (7) in the form of a concertina-folded tube which is deployed by injecting pressurized gas once into the space then stiffened by polymerization under the effect of the same radiation. The pylon concerned (7) thus comprises two structural elements (10, 20) secured end to end while at the same time maintaining its flexibility and firmness qualities. L'invention concerne un procédé d'assemblage de plis préimprégnés par polymérisation locale ponctuelle de la zone à assembler (30) sous l'action d'un rayonnement auquel la résine du préimprégné est sensible. Le procédé d'assemblage permet notamment la réalisation de structures Gossamer (7) de grande taille, qui se présentent sous la forme d'un tube plié en soufflet qui est déployé par injection de gaz sous pression une fois dans l'espace puis rigidifié par polymérisation sous l'effet du même rayonnement. Le mât concerné (7) comprend ainsi deux éléments structurels (10, 20) solidarisées bout à bout tout en conservant ses qualités de souplesse et de solidité.