Composite structural laminate

B - Operations – Transporting – 32 – B

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B32B 15/06 (2006.01) B32B 7/02 (2006.01) B32B 15/08 (2006.01) B63B 3/14 (2006.01) B63B 3/68 (2006.01) B63B 5/00 (2006.01)

Patent

CA 2330275

A composite structural laminate comprises two outer metal, e.g. steel, layers and an intermediate elastomer core, e.g. of unfoamed polyurethane. The elastomer has a modulus of elasticity of greater than about 250 MPa and tensile and compressive strengths of at least 20 MPa. The strength of the bond between metal and elastomer is at least 3 MPa. The composite structural laminate member acts as a single member under load, buckling globally, not asymmetrically.

Un élément de construction composite multicouche comprend deux couches en métal, en acier par exemple, et un âme intermédiaire en élastomère, en polyuréthane non expansé par exemple. L'élastomère présente un module d'élasticité supérieur à environ 250 MPa et des résistances à la traction et à la compression qui sont au moins égales à 20 MPa. La solidité de la liaison entre le métal et l'élastomère est au moins égale à 3 MPa. L'élément de construction composite multicouche réagit à la charge comme un élément unique, c'est-à-dire qu'il se déforme de manière globale et non pas de manière asymétrique.

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