TIME

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