Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1977-05-27
1979-11-06
Wityshyn, Michael G.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
64 1S, 138131, 138141, 138DIG2, 156215, 156313, 273DIG7, 273DIG23, 428111, 428294, 428302, 428367, 428376, 428398, 428902, B32B 512, F16C 102
Patent
active
041736702
ABSTRACT:
A tubular composite structure for transmitting forces comprises a metal tubular core, preferably of aluminum, having a layer of structural metal adhesive on the exterior surface of the core. On top of the structural adhesive layer are alternating laminae of resin impregnated unidirectional reinforcing fibers, particularly carbon or graphite fibers, and of woven fiberglass, beginning with a layer of woven fiberglass followed by a lamina of resin impregnated continuous unidirectional reinforcing fibers and continuing in alternating fashion but ending with a final layer of resin impregnated continuous unidirectional reinforcing fibers, each successive layer of resin impregnated continuous unidirectional fibers having the fibers oriented at an angle of between about 5.degree. to 12.degree. with respect to the longitudinal axis of the metal tube and in opposite orientation with respect to the next preceding layer. The fibers in the woven fiberglass layer are oriented at 0.degree. and 90.degree. with respect to the longitudinal axis of the metal tubular core. Preferably the unidirectional continuous reinforcing fibers are carbon fibers and particularly graphite fibers having a Youngs modulus of elasticity of about 30.times.10.sup.6 to about 50.times.10.sup.6 psi and a tensile strength of about 300,000 to about 400,000 psi.
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patent: 3969557 (1976-07-01), Jenks
patent: 4039006 (1977-08-01), Inoue et al.
patent: 4082277 (1978-04-01), Van Auken et al.
patent: 4089190 (1978-05-01), Worgan et al.
Dvorak Joseph J.
Exxon Research & Engineering Co.
Wityshyn Michael G.
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