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Hi! I still have some interrogations regarding this problem. I tried to apply a bolt preload in a case where the hole diameter is bigger than the diameter of the screw. The program doesn't converge and exits with an error. I have read that I should apply some temporary boundary conditions...

Thanks again for the answer! Yes I'm using solid elements and the elastic material properties only.

Hi Stefcon! Thanks for the answer! I tried with a finer mesh but still gets very high stress. Surface smoothing is already on as well. In order to determine the force applied to the bolt when adjusting the length, I thought about verifying the reaction forces (RF) at the pre-tension node...

Hi! I'm quite new to Abaqus. I'm trying to model a bolted assembly made of two rectangular flanges and the bolt itself (I merged the screw and the nut in a single part). I joined a pic of the assembly. I defined surface to surface contact between the head of the screw/the nut and the flanges...