FIBER WINDING SYSTEM FOR COMPOSITE PROJECTILE BARREL STRUCTURE
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United States of America Patent
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Dec 9, 2014
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Dec 9, 2013
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Abstract
A composite projectile barrel is disclosed comprising a continuous fiber composite outer shell whose average effective coefficient of thermal expansion in the longitudinal direction approximately matches that of an inner liner. In one embodiment, the composite barrel comprises PAN precursor carbon fiber and a thermoset epoxy resin, with the carbon fiber wound at varying winding angles to form a plurality of regions within the outer shell. The finished barrel exhibits light weight, superior axial stiffness and strength, durability, and is reliably accurate.
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