Imposing an initial strain or stress field
Imposing an initial strain or stress field
(OP)
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.
Is it possible to impose an intial strain field by a user subroutine or by other mean ?
Thank you.





RE: Imposing an initial strain or stress field
RE: Imposing an initial strain or stress field
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.