Unable to simulate interference fit using force (Hypermesh Optistruct)

Alberto M

Hi,

Is it possible to simulate interference fit using an axial force and not a imposed displacement on a two elements component initially separated?

The model with the imposed displacement works, the same model with different costrains and with the force is not convergent, which parameters should I change to make it works?

pressimposedforce.hm

Adriano Koga_20259

Force driven problems can be trickier than imposed disp.

You might wanna try adding some contact stabilization. (PARAM,EXPERTNL,CNTSTB or CNTSTB in the loadcase).

It might help you.