Htypoplastic Model in Miidas GTS NX

||Constitutive Modelling|6 |
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Hello.. I am defining the hypoplastic parameters for Karlsruhe sand (found in a paper) using MIDAS GTS NX. In the software the a requesting (in addition of parameters) the number of internal state variables, and the number of integer indicator variables.
I know how to define 22 parameters, my issu is how to define the number of internal state variables and the number of integer indicator variables

Screenshot-2023-04-25-125841.png

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6 Comments
  1. Arie Koot
    Arie Koot 2 years ago

    I do not know Midas but according next link the umats from soilmodels are not compatible

    http://manual.midasuser.com/en_common/GTS%20NX/150/GTS_NX/Appendix/USSR.htm

    • Kassem Dib Author
      Kassem Dib 2 years ago

      Thank you Arie..
      I saw an old comment for you about definition of pore pressure as temperature.. may to know how to define the analogy between hydraulic and thermal conductivity ? What to define for specific heat..

  2. Arie Koot
    Arie Koot 2 years ago

    QT=(T1-T2)*A*ktemp/L*dt [J]
    ΔT=Q/VRCtemp

    Qw= ΔhxAxkw/L*dt = (P1-P2)/9810xAxkw/L*dt [m3]
    kw=m/s
    ΔP=Qw/VxEwbulk

    => ktemp=conductility=Kw/9810
    => Ctemp=specified heat= 1/Ewbulk/R

    • Kassem Dib Author
      Kassem Dib 2 years ago

      Thank you Arie..
      I really appreciate your help..
      Thank you very very much again..

  3. Kassem Dib Author
    Kassem Dib 2 years ago

    Dear Arie..
    do you detailed document about this analogy?
    could you please explain more about units and the definition of each term you mentioned because i am confused little bit
    Thanks a lot

  4. Kassem Dib Author
    Kassem Dib 2 years ago

    sorry.. do you have **

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