Tuan Nguyen
Subscriber

Thanks for your answer. I have set NHV =4 on  the *MAT_USER_DEFINED_MATTERIAL_MODELS card and also set on EXTEND_BINARY card but the value also different. The values I write in ASCII are also differrent. I can share my model and my subroutine in UMAT since I got stuck with that problem and it is quite wierd.