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Dear everyon, In my research, I need to create subroutine UMAT for Rousselier damage model. I have already done it on VUMAT (for dynamics), and now I need to transfer my code to UMAT (for static problem). The problem is that I haven’t known yet how to define the Jacobian (the consistent...

Thank you very much for every information you gave me, I am very appreciate. In my research, I need to create subroutine UMAT for Rousselier damage model. I have already done it on VUMAT (for dynamics), but now I need to transfer my code to UMAT (for static problem). However, I got stuck on...

Dear everyone, Could anyone please explains to me how difference between Static General analysis and Dynamic Explicit analysis in ABAQUS? Can we use both types of analysis to solve the same problem? I have already created subroutine VUMAT for Dynamic Explicit analysis. So, is it possible to...

Dear IceBreakerSours, Thank you very much indeed for all of your suggestion. Now, I know the cause of my problem already. The problem is that I try to run this case study by using Abaqus CAE, but there are some conditions in inp-file that the CAE cannot support. So, the better way is that I...

Dear IceBreakerSours, Thank you very much for your immediately reply. I am sure that my system can run together with subroutine, because I have configured Abaqus with fortran complier already. In addition, I use to test my system with another case study which has subroutine and it can run...

Dear everyon, I try to run one case study that I got from Abaqus Verification Manual (4.1.37 Vumat : Rotating Cylinder). But it doesn’t work, it always show an error ‘Node set assembly__m22 has not been defined’. Cloud anyone please tell me how to fix this error? I have already uploaded...