Hello,
Unfortunatelly, in order to check your derivations I would have to make some derivations myself. I don't want to do that, because I'm a little bit pressed for time. However, I uploaded some derivations which I did in the past for the case discussed in the UMAT tutorial included in...
Hello,
The way I see it there is something wrong with your equation. On the right hand, the double dot product of second order unit tensor and the stress tensor would result in a scalar value (namely the trace of the stress tensor). So I think that the second term on the right side of the...
Greetings,
I intend to write a UMAT subroutine in order to perform a heat treatment simulation using CalculiX (the residual sytresses generated during quenching are my major subject of interest).
I will most probably use the CalculiX native UMAT subroiutine rather than writing an Abaqus UMAT...
