David Weed
Ansys Employee

Hello, thank you for your question submission. When using get_elmData with usermat, ‘EPPL’ is a valid label for retrieving the plastic strain; you can use kchar = ‘EPPL’. See the documentation for get_elmData in the MAPDL Programmer’s Reference here: https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v222/en/ans_prog/accessingsolutionmatdata.html.

Alternatively, get_elmData can also retrieve the plastic strain values using state variables, or kchar = ‘SVAR’. In usermat, the first seven state variables are reserved for plastic strain output:

c    ustatev   (dp,ar(nstatev),io)      user state variable
c            ustatev(1)                     – equivalent plastic strain
c            ustatev(2) – statev(1+ncomp)   – plastic strain vector
c            ustatev(nStatev)               – von-Mises stress