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Help with making Solid Mesh with Beam Elements

I have imported a assembly from inventor, but I have problems getting contact between the materials.

 

So I think it is better to start fresh

I have seen the following video:

 

https://www.youtube.com/watch?v=s-udGFfR3QI

 

I am a total noob, so my qeustion is how can I make this geometry?

 

14 REPLIES
Solution
Solution
Accepted by topic author Chris2
‎03-02-2017 03:40 AM

Re: Help with making Solid Mesh with Beam Elements

Geometry -> Solid -> Primitives..

 2017-03-01_20-14-33.png

Now you have cube with center in (0,0) and edge lenght as 1 unit.

Geometry -> Curve-Line -> Continuousl..

Create curve from point (-0.5,0,0.5) to (-0.5,0,0.5) as example or where you needed.

Thats all, so easy!

Re: Help with making Solid Mesh with Beam Elements

Thanks big time!

Re: Help with making Solid Mesh with Beam Elements

And where can I set the diameter of the beam/rod?

Re: Help with making Solid Mesh with Beam Elements

Expand the model info tree, right click on the property and choose "Edit".  This will bring you to the define Property dialog box where you can edit the area for rod elements or the shape for beam elements.

 

Rod_prop.pngrod_edit.png
beam_edit.png

beam_cross section.png

Re: Help with making Solid Mesh with Beam Elements

Thank you, i'm now a step further!

I follow the video however after meshing the solids from elements I get the following error:

 

Tet Mesh from Elements
504 Element(s) Selected...
Checking Elements...
MESHING SOLID 1 ______________________________________________________
-- SURFACE MESH 392 Triangles, 112 Lines

-- SURFACE MESH QUALITY
MINIMUM ANGLE _____________________
60.0 > A > 40.0 313 Elements
40.0 > A > 25.0 22 Elements
25.0 > A > 15.0 39 Elements
15.0 > A > 10.0 6 Elements
10.0 > A > 5.0 4 Elements
0.5 > A > 0.0 8 Elements

Worst Angle = 0. Element 192 (182 132 207)
Shortest Edge = 40. Element 186 (180 190 206)
Longest Edge = 226.7 Element 329 (256 257 259)
>>> ERROR: ERR 5621
>>> ERROR: FACE 80 WITH VERTICES : 182 132 207
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 112 WITH VERTICES : 185 187 202
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 115 WITH VERTICES : 130 183 204
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 120 WITH VERTICES : 189 180 206
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 204 WITH VERTICES : 209 145 266
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 236 WITH VERTICES : 251 211 264
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 244 WITH VERTICES : 247 249 268
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000
>>> ERROR: ERR 5621
>>> ERROR: FACE 245 WITH VERTICES : 143 245 269
>>> ERROR: SMALL INRADIUS : 0.000000000000000E+000

Mesher Aborted...

 

When I make a group it looks like the following jpg file.

The concrete is not solid.

 

 

Re: Help with making Solid Mesh with Beam Elements

I also used a beam type instead of a rod type,
then i get the following error:

 

Tet Mesh from Elements
1148 Element(s) Selected...
Checking Elements...
MESHING SOLID 1 ______________________________________________________
-- SURFACE MESH 1036 Triangles, 112 Lines

-- SURFACE MESH QUALITY
MINIMUM ANGLE _____________________
60.0 > A > 40.0 980 Elements
10.0 > A > 5.0 56 Elements

Worst Angle = 7.97 Element 211 (166 209 215)
Shortest Edge = 8. Element 211 (166 209 215)
Longest Edge = 80.81 Element 387 (306 313 312)
>>> ERROR: Another tetra_session is active (-1)

Re: Help with making Solid Mesh with Beam Elements

[ Edited ]

You have bad mesh elements.
For example, look this video to solve your problem.

https://www.youtube.com/watch?v=FlF6mCO8lYw&t=353s

Re: Help with making Solid Mesh with Beam Elements

I have watched the video, but I can't find the solution for my problem.

The rods/beams do mesh without problems, surface mesh also.

But the final step, the solid mesh gives the ERROR: Another tetra_session is active (-1).

How can I solve this?

Maybe I can send my model so someone can look in to it?

Re: Help with making Solid Mesh with Beam Elements

Ok, send me your model)