plasticity
plasticity
(OP)
I'm doing a plastic analysis ( perfect plasticity ) and I get this warning before the analysis stops
***WARNING: THE STRAIN INCREMENT HAS EXCEEDED FIFTY TIMES THE STRAIN
TO CAUSE
FIRST YIELD AT --- POINTS
***WARNING: THE STRAIN INCREMENT IS SO LARGE THAT THE PROGRAM WILL
NOT ATTEMPT
THE PLASTICITY CALCULATION AT --- POINTS
---------------------------------------------------------------------
Does sobdy know something about that?
bat585
***WARNING: THE STRAIN INCREMENT HAS EXCEEDED FIFTY TIMES THE STRAIN
TO CAUSE
FIRST YIELD AT --- POINTS
***WARNING: THE STRAIN INCREMENT IS SO LARGE THAT THE PROGRAM WILL
NOT ATTEMPT
THE PLASTICITY CALCULATION AT --- POINTS
---------------------------------------------------------------------
Does sobdy know something about that?
bat585





RE: plasticity
If that not work, try to run it with elastic material first to debug any protenial problem.
RE: plasticity
I'll try to reduce the increment and tell you if it's ok...
Thanx
bat585
RE: plasticity
I hope this helps
RE: plasticity
This is the post I was talking about.
RE: plasticity
My load is a temperature predefined field, therefore I cannot do like it is suggested in the post you showed me.
I will try with a hardening model like you said.
Thank you !
bat585
RE: plasticity
I think Abaqus can calculate but uses very short time increments (1e-7)
No way to change that?
bat585
RE: plasticity
I assumed that you have a big area that under plastic, hence big nonlinearity.