Reinforced sandwich structure

Details Reinforced sandwich structure Reinforced sandwich structure

E - Fixed Constructions

04

C

E04C 2/36 (2006.01) B29C 70/08 (2006.01) B29C 70/24 (2006.01)

Patent

CA 2606857

The present invention relates to a reinforced sandwich structure (10) comprising stacked in height direction thereof, at least one top layer (2) and at least one bottom layer (3) comprising a fibrous reinforcing material, which top and bottom layer sandwich between them at least one core (1) of a foamed material, the sandwich structure being impregnated with a resin material. The at least one core material comprises at least one insert (9) which extends in height direction of the reinforced sandwich structure (10) over at least part of the height thereof and in at least one of the longitudinal and transversal direction thereof. The at least one top layer (2), the at least one bottom layer (3) and the at least one core material which comprise the at least one insert are connected to each other by means of reinforcing fibers, at least part of which extend in height direction of the sandwich structure.

Cette invention se rapporte à une structure sandwich renforcée (10), qui comprend, empilées dans le sens de sa hauteur, au moins une couche supérieure (2) et au moins une couche inférieure (3) comprenant un matériau de renforcement fibreux et prenant en sandwich entre elles au moins un noyau (1) de matériau mousse, ladite structure sandwich étant imprégnée d'un matériau résineux. Le ou les matériaux noyau comprennent au moins un insert (9) qui s'étend dans le sens de la hauteur de la structure sandwich renforcée (10) sur au moins une partie de sa hauteur et dans au moins l'une des directions longitudinale et transversale. La ou les couches supérieures (2), la ou les couches inférieures (3) et le ou les matériaux noyau qui comprennent un ou plusieurs inserts sont reliés entre eux par des fibres de renforcement, dont au moins une partie s'étend dans le sens de la hauteur de la structure sandwich.

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