Hello everyone,
I am currently writing a UMAT for non-linear viscoelastic materials. In order to do some verifications,
I need to be able to customize the time incrementation scheme. For example, the first increment would
have a time step of 1E-5s while the other increments would have constant time step of 1E-2s. I know this is not a
very straightforward problem, but I really need to be able to do that. I am currently trying to combine my UMAT with other subroutines
such as "UEXTERNALDB" and "URDFIL" in order to modifiy the DTIME parameter - without being successful.
Any ideas or suggestions?
Thanks!
- Jack
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I think you can just divide
I think you can just divide your problem into two steps with fixed increments for each one.
In reply to I think you can just divide by Lihua Jin
Re: Controlling the time incrementation scheme in Abaqus
Hello Lihua,
Dividing into 2 fixed increment steps wouldn't be very efficient in my situation since I need to vary these values quite often.
I actually managed to work it out for those who are interested. In my UMAT, I called UEXTERNALDB and URDFIL. I now just have to specifiy
the desired time scheme in my UMAT.
Regards,