Hard to tell from the pictures, but it seems like the joints have been created successfully. I would have to see the full model to know for sure. You will get a warning like shown below if the beam is too "stubby". This warning wouldn't keep the simulation from running.
Also, the 3 joints below look suspicious, they may not be joining properly because as you said in your post, they are "short beams".
As far as the neutral axis you'll have to inspect/change it by right clicking on the beam and --> "Define neutral axis"
Hope that helps.
short beams shouldn't be shells, the methodology breaks down, replace with solids or shells
I think it will then cause ssues with the neutral axis
this is a well documented error in the swx kb
Jared, I agree that generally, yes, the beam approximation falls apart for short beams. However, depending on the type of loading I have been able to successfully (based on comparison with solid model) use beams when I suspect there is little or no out-of-plane loading or torsion.
Daniel, It's probably still a good idea to convert some of the short beams to solids to check the impact on deflection results to get a comfort level.
It's hard to tell, but I think I'm having a similar problem with one of the canned tutorials. I'm trying to learn how to work with joints. The auto detect joints picked up two joints where there only should be one. I looked over the ready study and the SW help (2013 SOLIDWORKS Help - Edit Joints PropertyManager ). I can't seem to find a way to delete the incorrect joint and repair the correct one. The help says right click select the joints and to remove elements from the graphics area. I removed all the elements by doing this, but the joint remains. I tried selecting the joint from the list and using the delete key, but that didn't work either. Ideas?
Model.zip 120.1 KB
You correctly identified the problem in your second screen capture. To solve it:
- Edit the Joint group
- Uncheck 'Keep modified joint on update'
- Click 'Calculate'
- Check 'Keep modified joint on update'
- Click 'Calculate'
- Click OK
You can then define your fixtures and loads.
Note: In case of instability, you should activate the 'Use soft spring to stabilize model' option in the Properties of the study.
Unfortunately Julien this did not work.
1) I tried your suggestion, but it maintains the extra joint.
2) I've tried re-trimming the joints (no success).
3) Moving neutral axes (no success).
4) Creating new studies (no success).
5) I've googled for answers (no success).
This one really has me stumped.