Imposing an initial strain or stress field

[xerf]

I'm trying to break an analysis into multiple jobs between which I want to alter the stress and strain fields from the end of one job and then somehow impose these as an initial state in a consecutive job.

Is it possible to impose an intial strain field by a user subroutine or by other mean ?

Thank you.

 

[Drej]

See thread799-96896 - it might be what you're after.

 

[xerf]

Thanks , I've already tried SIGINI.

Probably I've got it wrong the way SIGINI works
It happens that the imposed stress field (by SIGINI subroutine) is eliminated after first step and I end up with almost no stresses (except numerical residues).

This is not happening if I blocked the boundaries where previously I had the loadings (pressure etc).

Anyway the resulted strain field due to stresses in SIGINI is not the same...at least the way I used it until now.

Now I'm trying to use DISP to apply the displacements
corresponding to previous step.

Generally it performs pretty well , the induced stresses and strains are almost the same...almost..there are some mismatches like PE33 is not 0 as it should etc.

Anyway , thank you very much for your answer.