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October 3, 2024 at 1:59 pm
John Doyle
Ansys Employee

You are on right track with TBFIELD.

TBFIELD supports user defined variables (UF01 thru UF09).  You can edit any initialized user defined field variable via UserFld subroutine.  Please see Section 9.2.1 of the MAPDL Material Reference Guide as well as Section 2.4.14 of the MAPDL Programmers Reference Guide.