Composite structural member with high bending strength
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United States of America Patent
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Feb 23, 1993
Issued Date -
N/A
app pub date -
Dec 13, 1991
filing date -
Jun 15, 1989
priority date (Note) -
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Abstract
A composite member (10) features a unique ply geometry which contributes to improved bending strength. The composite is constructed of a plurality of plies, each comprising a fiber component disposed within a polymer matrix. An inner ply (16) has a fiber component (18) which has fibers which are circumferentially extending. An intermediate ply (22) has first axially extending fibers (24) which are disposed about the circumference of the composite, as well as second axial fibers (30) which are interwoven with helically oriented fibers (36) and embedded in a polymer matrix (14). An outer layer (38) is similar to the inner layer as it features circumferentially extending fibers (40) which are embedded in a polymer matrix. The composite materials may be used to manufacture a wide range of items which require light weight combined with high strength.
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