A New Assessment Method for the Bulk Modulus and the Poisson's Ratio of Porous Ceramics

    Volume 28, Issue 3 (May 2000)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 10


    Yeheskel, O
    Nuclear Research Center—Negev, Beer-Sheva,

    Tevet, O
    Nuclear Research Center—Negev, Beer-Sheva,

    (Received 28 June 1999; accepted 25 February 2000)

    Abstract

    A new assessment method for the elastic moduli of porous materials is proposed. This method is based on a linear correlation between the Young's and the shear moduli of a given porous material. It is shown that such a correlation prevails for ceramics (Al2O3,ThO2,andZnO) and for glass (SiO2) having Poisson's ratios of the solid bulk in the range of 0.15<ν00.36. The outcome of the new assessment method is the use of either an elastic modulus or a sound velocity as the parameter for non-destructive assessment of the bulk and the Poisson's ratio of porous ceramics. These findings open a simplified route to quantitative non-destructive evaluation (QNDE) of the elastic moduli of porous materials.


    Paper ID: JTE12094J

    DOI: 10.1520/JTE12094J

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    Author
    Title A New Assessment Method for the Bulk Modulus and the Poisson's Ratio of Porous Ceramics
    Symposium , 0000-00-00
    Committee E07