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    Volume 15, Issue 2 (March 1987)

    Improved Impulse-Frequency Response Techniques for Measurement of Dynamic Mechanical Properties of Composite Materials

    (Received 7 April 1986; accepted 2 September 1986)

    CODEN: JTEOAD

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    Abstract

    The dynamic mechanical properties of composite material specimens are rapidly determined by using two new computer-aided impulse techniques. Small beam specimens are excited in either flexural or extensional vibration by an electromagnetic hammer with a force transducer in its tip, while specimen response is measured with an eddy current probe or accelerometer. A desktop computer/Fast Fourier Transform analyzer system is then used for rapid data acquisition and computation of the complex modulus by curve-fitting to the frequency response function.


    Author Information:

    Suarez, SA
    Facultad De Ingeniera Mecanica, Escuela Politechnical Nacional, APTDO, Quito,

    Gibson, RF
    Professor, University of Idaho, Moscow, ID


    Stock #: JTE10991J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10991J

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    Author
    Title Improved Impulse-Frequency Response Techniques for Measurement of Dynamic Mechanical Properties of Composite Materials
    Symposium , 0000-00-00
    Committee D20