Nodal supports during meshing

[saclovitzky]

Hello,

I'm just wondering why the  created nodal support in a slab/panel was not included during meshing?

Is there any reason for this?

[Romanich]

Hi @saclovitzky,

Are you sure that nodes lie in the same plane?

[saclovitzky]

yes

[Rafacascudo]

can you send the model?

[saclovitzky]

@rafascudo, pls see attached screenshot and file.

[Rafacascudo]

Just opened it in repair mode and meshed it again and it worked. File attached

[saclovitzky]

@rafascudo, why do you open it in repair mode?it means that the file is corrupted? thx anyway

[saclovitzky]

@rafascudo, is it necessary that when you have a point load, it shld be included in meshing?

[saclovitzky]

I have a test model of  3x3m slab and putting  6 point loads(Pls. see attached), when I am meshing it, it is not included. It is really a disaster!

To my horror, when the point loads are not included in the meshing you lose more than 50% of the results value!

I created nodes directly on the slab and why it is still happening ,is this a bug? this is a SERIOUS ERROR!

[Rafacascudo]

No problems here RSA 2018 with latest patch HF2. See below.

And again , opening your file in repair mode ,makes it work normally. I don´t know what is happenning . Maybe official support can help better

[saclovitzky]

@rafascudo

I uploaded the way a created the test model using "autodesk screencast" the title is "node meshing" but I do not where it is uploaded?can you track it?

On the video, it is really shows that nodal loads were not included in the meshing. Pls. see attached.

[saclovitzky]

@rafascudo

Pls. find below the link for my screencast

https://knowledge.autodesk.com/support/robot-structural-analysis-products/learn-explore/caas/screenc...

[saclovitzky]

@rafascudo, I also do the same on what you've shown on your screencast but still it doesnt work

what is your comment Artur/Technical Staff?

[saclovitzky]

This is quite disturbing if you have a large scale model with multiple point loads, this is very easy to overlooked!

[Artur.Kosakowski]

Hi @saclovitzky

I think if you actually checked the value of reactions you'd sleep better. All that happened is exactly what you 'asked' for deciding on the use of kinematic constrains rather than mesh adoption to defined nodes 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[ramon]

Thanks Artur.

The only reason why I chose either "Use of kinematic constraints/Obtain coherent FE mesh", is when I encounter "incoherent mesh on edges" error message.

There are times that one or the other is working for a specific model in terms of meshing. As an ordinary user, I would like to suggest that whatever option you choose, point loads/supports will be automatically included in meshing.

[Artur.Kosakowski · Accepted solution]

Hi @ramon

As you can see on the picture I [posted they actually were by means of the generated kinematic constrains (the point loads were applied to the model).

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.