Composite tube having cobonded end fittings and method of making same
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United States of America Patent
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Apr 9, 2013
Grant Date -
Jun 5, 2008
app pub date -
Dec 2, 2006
filing date -
Dec 2, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A structural member such as a strut includes a composite material tube having metal end fittings that are attached to the tube by co-bonded, double shear joints. The double shear bond joint construction reduces the residual stress on the bonds that result from mismatch of the coefficients of thermal expansion of the composite tube and the metal end fittings. The ends of the fittings that are bonded to the tube may include a stepped profile that functions to limit the peak stresses in the bonds.
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