Sandwich structure

Details Sandwich structure Sandwich structure

B - Operations, Transporting

32

B

B32B 3/22 (2006.01) B63B 5/24 (2006.01) E04C 2/34 (2006.01) F16L 57/00 (2006.01)

Patent

CA 2226383

A sandwich structure has a core which comprises an array of core units (3) that are arranged in a staggered pattern between the walls (1, 2) of the structure such that in a first direction (II-II) adjacent core units (3) are substantially aligned whereas in another direction (III-III) at least some adjacent core units (3) partly face each other and the core units (3) are arranged in said first direction (II-II) at generally larger mutual spacings (7) than in said second direction (III-III). The thus formed core is drpeable yet structural, so that it can conform to curved structures and the staggered mutual spacings (7) form no through-gaps in the core webs so that the risk of crack formation in the walls (1, 2) and between walls and core is minimized.

Ce panneau sandwich présente une âme comprenant un assemblage d'unités (3) disposées selon un schéma en quinconce entre les parois (1, 2) du panneau, de telle manière que, dans un premier sens (II-II), les unités (3) adjacentes soient pratiquement alignées, tandis que dans un autre sens (III-III), au moins quelques-unes de ces unités (3) adjacentes soient partiellement opposées, lesdites unités (3) présentant entre elles, dans le premier sens (II-II), des espacements (7) généralement plus grands que ceux existant entre ces unités dans le second sens (III-III). L'âme ainsi formée peut être drapée, tout en restant structurale, de sorte qu'elle puisse se conformer à des structures courbes, et les espacements (7) en quinconce ne constituent pas d'espaces traversants dans l'assemblage constituant l'âme, afin que soit minimisé le risque de formation de fissures dans les parois (1, 2) et entre les parois et l'âme.

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