What is the best way to connect a truss (beam) part and shell parts? 1

[Mohamed Zied]

Hi,

I tried to connect a 2D truss part to Shell parts (girders), by using tie constraint and node regions. but it seems that it doesn't work because the truss part didn't appear in the visualization module I had this warning:
"node set assembly_truss2-1-refpt_ has no members and will be ignored. Nodes defined in this set may have been deleted because they were not connected to any elements".
I attached some pictures with more details.
So what is the best way to connect a truss part and shell parts?
Thank you in advance.

 

[FEA way]

One way of doing this is by merging the instances (Merge/Cut Instances tool in the Assembly module).

 

[Mohamed Zied]

Does it mean that I should place all the truss parts in the right place and merge all parts in the assembly module? so the whole bridge will be considered as a part itself, right?

 

[FEA way]

That’s right. This way new part will be created and it will consist of these merged instances. But there are different methods. For example you can try using MPC constraint.

 

[Mohamed Zied]

thank you, it works