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    Method and apparatus for determining bulk material properties of elastomeric materials

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    6578431.pdf (849.1Kb)
    Downloads: 70
    Publication Date
    2003-06-17
    Filing Date
    2001-04-03
    Inventor
    Yu, Jang-Horng
    Dillard, David A.
    Lefebvre, Didier R.
    Metadata
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    Abstract
    A method and apparatus for determining bulk material constants such as Poisson's ratio and the ratio of shear modulus to bulk modulus for elastomeric materials, including, but not limited to elastomers, rubbers, gels and sealants is disclosed. The bulk material properties are determined by measuring the pressure change of the elastomeric material when the elastomeric material is subjected to an applied pressure. The changes in the bulk material property due to temperature or a the addition of a diluent may also be determined. The apparatus includes a container that holds the elastomeric material. A pressure sensor is located in the container and is positioned to measure the pressure of the elastomeric material. The signal from the pressure sensor along with the applied pressure is used to determine a bulk material property such as Poisson's ratio or the ratio of shear modulus to bulk modulus for the elastomeric material.
    Assignee
    Virginia Tech Intellectual Properties, Inc.
    Patent Number
    6578431
    Application Number
    9824581
    Source URL
    http://pimg-fpiw.uspto.gov/fdd/31/784/065/0.pdf
    Primary/U.S. Class
    73/819
    Other/U.S. Class
    CPC Class
    G01N11/16
    G01N2203/0005
    G01N2203/0016
    G01N2203/0051
    G01N2203/0256
    Patent Type
    utility
    URI
    http://hdl.handle.net/10919/72471
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    • Virginia Tech Patents [689]

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