Metal-to-composite interfaces
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United States of America Patent
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Oct 18, 2016
Grant Date -
Jan 29, 2015
app pub date -
Jul 23, 2014
filing date -
Jul 23, 2013
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Abstract
The invention relates to improved metal/composite interfaces, particularly for risers used in offshore oil and gas production to connect a subsea oil well to a surface drilling/production facility. The invention provides a composite hoop structure configured to a bearing surface of a metal groove of metal liner over which axial fibers are laid. The composite hoop structure provides for improved transition of axial, torsional and compressive forces between composite fibers and metal surfaces of the metal liner.
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