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  1. AminGh86

    Using two different USDFLD subroutines in a problem

    Dear friends, Could anyone share any information about using two different usdfld subroutines (each for one material) at the same time in an analysis? Is there a specific format for using them in the same file? I searched and found a few formats but it seems they don't work for me. Thanks for...
  2. AminGh86

    Negative values of NDIR ?!!

    Dear friends, I am trying to get principal stresses via "vsprinc" inside a "VUSDFLD" subroutine, however while I run my model with the subroutine, I get this error: "Utility routine VSPRINC does not support tensors with NDIR=-228454389 and NSHR=2046." NDIR is the number direct stress components...

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