I am conducting a displacement controlled analysis.
In a first attempt, I ran 30 000 steps for a 0.1 displacement total ( that make 0.1 / 30 000 displacement per steps).
Then it failed at around 28800.
I said fine, I'll just increase the number of step, to, say 35 000. There I thought I had it.
Well, now it fails at... 15 000 steps.
Have you ever had this problem? I changed absolutly nothing else in the model!
I thought decreasing the displacement increment per steps would help stabilize the system... never imagined it could ruins it? Any clue on what could be happening? Thanks!