Material strain-rate softening behavior, Convergence Problem.
Material strain-rate softening behavior, Convergence Problem.
(OP)
Hi
I get This warning:


Now, How should i arrange this data to remove this warning?
with Best Regards.
yassou.
I get This warning:
I can't Extract whole data, but you can see part of it in blew images:Quote (Abaqus-Warning)
Material "X" has strain-rate softening behavior. This material may become unstable and cause convergence problems. We recommend that the rate dependent data be modified such that the yield stress increases with increasing strain rate


Now, How should i arrange this data to remove this warning?
with Best Regards.
yassou.





RE: Material strain-rate softening behavior, Convergence Problem.
You can see for your rate 10 values, the stress drops from 876 to 801 MPa as plastic strain increases from 0.02 to 0.03.
RE: Material strain-rate softening behavior, Convergence Problem.
It's funny i placed the Image of problem and i didn't recognize row 54 is 901000000 not 801000000.
Thanks again.