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Convergence troubles with USERMAT subroutine

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  • #16
    Unfortunately, debugging USERMAT files is time consuming

    I can help, but I need to charge for my time. Contact me if you are interested.

    -Jorgen
    Jorgen Bergstrom, Ph.D. PolymerFEM Administrator

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    • #17
      Dear Dr. Bergstrom
      Thank you for your response.
      Please read my "contact me" massage.

      Can you please just tell me; is it possible that the ANSYS-written USERMAT have a bug?
      According to the ANSYS Help documents [1], in order to define a new material one only need to define Stress and the material Jacobian tensors and there is no need to account for the rotation of the elements coordinate systems.

      I am looking forward to hear from you.


      [1] https://www.sharcnet.ca/Software/Ans...atjwf032800403

      Best regards
      Memo

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      • #18
        can anyone tell UMAT linking procedure with ANSYS. like setting environmental variables

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        • #19
          Dear memo,

          Can you please send the password?


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