STP1346

    Characterization of Carbon Fiber-Reinforced Peek Composite for Use as a Bearing Material in Total Hip Replacements

    Published: Jan 1998


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    Abstract

    A carbon fiber-reinforced polyetheretherketone (PEEK) composite acetabular cup was fabricated by injection molding. An extensive hip joint simulator test was conducted to evaluate the tribological performance of this CF-PEEK composite cup as a potential orthopaedic bearing surface. Hip joint simulator testing up to 10 million cycles showed that the wear of the composite cups is about 1% that of the UHMWPE cups. Hertzian contact stress analysis indicated that the CF-PEEK material had a lower maximum contact stress/yield strength ratio compared to air-irradiated UHMWPE acetabular cups. With prudent application of composite design principles, it is possible to engineer a composite insert that shows promise as an orthopaedic implant bearing surface in total hip replacements.

    Keywords:

    polyetheretherketone (PEEK), carbon fiber, composite, wear, hip


    Author Information:

    Polineni, VK
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Wang, A
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Essner, A
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Lin, R
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Chopra, A
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Stark, C
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ

    Dumbleton, JH
    Research Engineer, Assistant Director, Senior Research Associate, Assistant Director (Retd.), Principal Research Engineer, Director and Vice-President, R&D, Howmedica, Inc., Rutherford, NJ


    Paper ID: STP12844S

    Committee/Subcommittee: F04.14

    DOI: 10.1520/STP12844S


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