[MarcoC501]

Dear all,
I performed a series of FEM simulations considering a 3D printed frame made up of several components fabricated with additive manufacturing. For the analyses I considered their behaviour much similar to the one of the steel structures (aware of the uncertainties this procedure is causing).
When I simulated the bolted connections between bodies, I simply assumed "bonded-type contact". I did not find in the literature any example dealing with frictional joints between AM parts, so I went for the simplest option.
Do you have suggestions on papers I could read which deal with similar problems? In particular I am interested in the stiffness and damping of steel joints for 3D printed material, how they influence the connection and how I should take this into account in the FEM simulations. Moreover, it would be good to have an idea on how reliable is the approach I used (in terms of uncertainty and underestimation of the stress level).
Thanks a lot for your help and suggestions