[mfront] The equivalent stress is ill defined in the Plastic inelastic flow

[thelfer]

Thanks @thelfer !

I have tried to creat a behaviour law in which the total strain contains a viscoplastic part (UserDefinedViscoplasticity) and a plastic one (isotropic_hardening : "UserDefined"). I am not really sure that my syntax is correct for this addition. The error message is as follows :

error: ‘seq’ was not declared in this scope; did you mean ‘__pstl::execution::v1::seq’?

I attached here the mfront file. Can you take a look ?
test.zip

Regards,
Hiep

Originally posted by @Hieppt in #158 (comment)

[Hieppt]

Thanks @thelfer ! It seems great now.