I seem strange that displacements cannot be applied with user subroutine DISP in Riks procedure, but I'm not a expert in this field. In that case, how can I apply a displacement which cannot be defined in input file for Riks procedure?
Thanks Mustaine3
In our department we have another user subroutine (UMAT) to simulate fracture behavior in concrete. The user subroutine UMAT uses Riks procedure to improve the convergence. So now, the idea is to combine both user subroutines (UMAT and DISP) to simulate the behavior of concrete when a rebar is...
Hello everybody,
I have made a DISP subroutine and it works correctly in 'Static, General' Step. But when I change to 'Static, Riks' Step an Error arises as 'A zero displacement solution was found in the first iteration of a riks step. The analysis cannot proceed. The most likely cause is that...
