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Deriving Bi-axial and pure shear test data for rubber

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  • Deriving Bi-axial and pure shear test data for rubber

    Hello,

    I am a beginner in rubbers. I am trying to model rubber in LS DYNA using *MAT_HYPERELASTIC_RUBBER (i.e. *MAT_077_H). To get the Yeoh model constants (C10, C20, C30), I need to do the curve fitting. But I have only the uni-axial tension test data.
    I came across a method called "Constant true Young's Modulus with varying Poisson's ratio" devised by Turner and Brennen. By this method you can generate the bi-axial and pure shear test data from the uni-axial data. Unfortunately I am not able to find any literature about this method.

    I would be really glad for any suggestions and literature sources.

    Thanks in advance,
    Heramb

  • #2
    Hi Heramb,

    this article might be of interest for you ...

    Regards,
    Bernhard
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    • #3
      Thanks a lot...will check it out..

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