Why is Moment load in conjunction to Pressure and Gravity not solving for more than 10mins on 6 cores

[datsnl]

@FEAnalyst

You could use a coupling constraint for this purpose. It’s not yet supported in GUI but can be defined manually with proper keywords: RBE3 integration in PrepoMax (Kinematic & Distributing Coupling)

Hi FEAnalyst,

I had a look at the link for RBE3 integration in PrePoMax and tried a few things from that post.

I can summarise that,

1. Coupling → Distributing makes that surface that linking happens stiff similar to Rigid constraint.
2. Distributing Coupling with Dcoup3D is the right way for RBE3 type of connection as it did not change the surface stiffness from what it was previously.

By using Distributing Coupling with Dcoup3D, all of my load cases worked properly and here is the screenshot of the loads on one of the supports.

Thank you all for your help.

It is a great community.