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relaxation test data in abaqus

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  • relaxation test data in abaqus

    hello, i m using abaqus to model a viscoelastic structure. however, i m confused about the parameters . i chose time domain, relaxation test data. then i chose test data = shear test data.
    in the test data editor i have to insert two values, gr(t) and time. can u please tell me how to get these data from the experimental relaxation test?
    thank you .... i hv attached a picture here to clarify what i asked.
    thank you
    Attached Files

  • #2
    gr is the normalized relaxation modulus, and time is, well, just the time.

    -Jorgen
    Jorgen Bergstrom, Ph.D. PolymerFEM Administrator

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    • #3
      Dear sir,
      There is one more thing in input option, "long term normalized shear compliance or modulus". What does that mean and how to calculate that?

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      • #4
        It's the final normalized shear relaxation modulus as time goes to inifinity. You can get it by extrapolation for shorter time data.

        -Jorgen
        Jorgen Bergstrom, Ph.D. PolymerFEM Administrator

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