Hexahedric on round profiles

The attach!

Administrator wrote:

For extrusion / swept geometry, you can achieve good results with prismatic elements (which are usually better than tetra). To see how to use prismatic elements in Salome, you can have a look at the "extrusion meshing" tutorial :
www.caelinux.org/wiki/index.php/Doc:CAETutorials

Thank you, this tutorial is very clear. I have to say that I didn't see it before!

Just another question: when working with assemblies, is it better to make a mesh for every single component and then make a compound of meshes to be given to code_aster? Or is it the same thing than to create a single mesh with 3d-groups (each one corresponding to a single component of the geometry assembly) in it?

The question is related to the fact to follow your tutorial to mesh an assembly: I think it is easier to make extrusion meshes on simple geometries then to make the same thing on a complex geometry obtained from an assembly of parts.

Thank you again for your patience...

Hello Alessandro

What is this tutorial to mesh an assembly?
Could you tell me where I can get it?

Thanks

Marcelo wrote:

Hello Alessandro

What is this tutorial to mesh an assembly?
Could you tell me where I can get it?

Thanks

the tutorial show only how to mesh a single part, it is the number six in the wiki page:

www.caelinux.org/wiki/index.php/Doc:CAETutorials

If you have to mesh an assembly, I use this workflow, but may be another way exist (*)

1) Model the assembly in a cad package (Solid Edge, SolidWorks, Pro/Engineer, the one that you prefer).

2) Export it to step format

3) go to salome, switch to geometry module and import the step file.

you can look at my tutorial, the number eleven in the same wiki page. The analysis of an assembly is explained in it.

* = the other way exist, but it is very very very time-consumpting: you have to create 2d surfaces, create 2d meshes on these surfaces, and finally extrude them along a linear path or making a revolution around an axis, to create solids with the same shape of the original solids. If you create a group from every 2d surfaces to be extruded, the result of extrusion will be a 3d-group. You have to save the hdf file after every operation that you do, because in Salome the UNDO command DOES NOT exist!!!!!!<br /><br />Post edited by: Alessandro, at: 2009/03/20 16:20