Composite tubular member having impact resistant member

Details Composite tubular member having impact resistant member Composite tubular member having impact resistant member

B - Operations, Transporting

32

B

B32B 1/08 (2006.01) A63B 59/14 (2006.01) B32B 5/12 (2006.01) A63B 53/10 (2006.01) A63B 59/00 (2006.01) A63B 59/02 (2006.01)

Patent

CA 2285726

An axially extending tubular composite member having a plurality of plies and extending along a longitudinal axis has at least three plies with selectively structured fiber components in each ply and an internal impact resistant beam having a C- shaped or U-shaped cross section positioned between two of the plies. Typically an inner ply has at least one biaxial fiber component, an intermediate ply has at least an axial fiber component that typically is combined with two further fibers to form a triaxial fiber component. Another ply typically has a woven fiber component. A further ply having a biaxial component either replaces the ply of woven fiber or is disposed beneath it over the intermediate ply. A surface veil having fiber and an excess of resin material typically covers at least the innermost or outermost surface of the composite member. The impact resistant member is constructed from an impact resistant material such as ABS plastic, and is typically positioned between the intermediate ply and the exterior ply.

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