About UNCOUPLED TEMPERATURE-DISPLACEMENT

[Calc_em]

This procedure is the right choice if you need one way coupling:

@dhondt

In an uncoupled temperature-displacement calculation the temperatures are solved for first for the complete increment, and then the mechanical solution is obtained for the complete increment. So there is no coupling from iteration to iteration. It is as if you would have a *HEAT TRANSFER step followed by a *STATIC step.

You could also check its (partially) two way coupled equivalent: Mechanical-Thermal analysis - sequence - #2 by Calc_em

I just wonder why they include the ALPHA parameter.

Abaqus, unlike CalculiX, also has dynamic explicit thermomechanical procedure.