UMAT option in PrePoMax

Feature Requests
21

I want to use umat in prepomax. Here is my inp file,

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but I encountered the following warning while running. Why is this
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22

Is that elset properly defined ? Does it work with any built-in material ?

23

This is my file
1.pmx (1.1 MB)

24

Try with *SOLID SECTION, ELSET=Solid_part-1 or define that elset All in GUI.

25

I changed * SOLID Section, ELSET=Solid_part-1, but a new error occurred

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1 Like
26

Then you should also add the *ORIENTATION keyword via the keyword editor (syntax described in the ccx manual). After all, this is Barlat’s anisotropic plasticity model, right ?

1 Like
27

It’s a bit strange to see this error when opening result after the calculation is completed

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1 Like
28

Try in PrePoMax 2.1.0, support for material names with @ was added in 2.0.6 dev version: A developer/preview PrePoMax version v2.0.6 has been released

2 Likes
29

The new version is indeed useful. Thank you.

2 Likes
32

I was using Umat material simulation at PrepoMAX and had some confusing issues. My steps are as follows

  1. Compile the umat code sdv.f file to libsdv.dll
  2. Call the libsdv.dll in keywords. *Material, Name=@ABAQUS_sdv
    *USER MATERIAL, CONSTANTS=2
    200000,0.3
    **Young, Pisson
    *DEPVAR
    2
    **
    ** Sections ++++++++++++++++++++++++++++++++++++++++++++++++
    **
    *Solid section, Elset=Internal_Selection-1_Solid_Section-1, Material=@ABAQUS_sdv
    **
    An error is reported in the running result.
    image
    image920×552 77.9 KB

    But when I changed sdv.f to umat.f, it worked successfully by following the steps above. So is it an issue with sdv.f, or is there something wrong with my setup.
    Attach my whole files.
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