Solid bodies and surface bodies
Solid bodies and surface bodies
(OP)
Hi,
I am a new user doing a FEA analysis on an assembly using Cosmosworks 2007. I am just wondering what is correct way to analyze an assembly with solid bodies. Do I have to model and mesh all the solid bodies together with othe elastic compoments, or can I use surface bodies to represent solid bodies? I tried surface bodies, but it did not work. Modelling and meshing solid bodies seems a waste of computational power.
Thanks,
Alex
I am a new user doing a FEA analysis on an assembly using Cosmosworks 2007. I am just wondering what is correct way to analyze an assembly with solid bodies. Do I have to model and mesh all the solid bodies together with othe elastic compoments, or can I use surface bodies to represent solid bodies? I tried surface bodies, but it did not work. Modelling and meshing solid bodies seems a waste of computational power.
Thanks,
Alex






RE: Solid bodies and surface bodies
In general you have to mesh all of the solid bodies in an assembly as solid bodies. Mixed meshes are possible but are used when sheet metal and solid bodies are combined in the assembly. As you point out this does cause a lot of computational time to be used up in areas that are not of interest. One of the ways to handle this is to experiment with the largest element size that the model will mesh with. Once you have established that then use the mesh controls feature in the mesh command to reduce the mesh in the spots of interest.
Another way to control the mesh is to remove as many of the features that have little bearing on the results as possible. Usually in an assembly this means holes or radiused edges.
RE: Solid bodies and surface bodies
Thanks a lot for your reply!
Does Cosmosworks 2007 have capability of meshing surface bodies in Cosmosworks 2007?
Alex
RE: Solid bodies and surface bodies
If I get the chance I use the solid model whenever I can. But since we use a lot of sheet metal parts in large assemblies I am forced many times into using shells. They can be a pain to work with but the results are good with less processing time.
Hope this helps.