Choose a channel featured in the header of iMechanica:
I have written a umat subroutine for the example that is with usdfld subroutine analyzing damage in a composite lamina.
After checking and compiling the subroutine, this ERROR is shown: fix time increment is too large.
I changed the step madule data but the error still is here. What should I do to solve this problem?
Please help me with this problem