Voids in 2D meshes

[zhangws55 0]

Hi,

 

I sometimes encounters mesh voids in my simulations (see figure attached), and was wondering if there are features to semi-manually or automatically fill the voids or gaps with elements?

 

Thanks in advance. 

Wensong

[Rahul R 316]

If it is uniform void or in one plane it would be easy to fill void.But for such cases i feel manual method using F6 command (create element) would be useful.

[zhangws55 0]

4 minutes ago, Rahul R said:

If it is uniform void or in one plane it would be easy to fill void.But for such cases i feel manual method using F6 command (create element) would be useful.

 

Thanks Rahul, so automatic void filling is available if voids are on the same plane as surrounding elements? which feature is it?

 

Cheers

[Rahul R 316]

for filling hole i see some utilities are there.Utility menu: Geom/Mesh:Fill hole

[Rahul R 316]

even you can use 2d mesh spline command with nodes option.

[zhangws55 0]

21 minutes ago, Rahul R said:

for filling hole i see some utilities are there.Utility menu: Geom/Mesh:Fill hole

 

I would like to check the Fill Hole feature but couldnt seem to find the Utility menu. Could you upload a screenshot to help me locating the menu?

 

Your help is much appreciated. 

 

Wensong

[Rahul R 316]

PFA.

[zhangws55 0]

I don't seem to have it for some reason. Any idea?

[Rahul R 316]

Envoke utility browser through view pull down menu.PFA

If you can share your model i can check how it can be corrected for your case.

[zhangws55 0]

I figured it out just now. I was using HyperMesh Desktop rather than HyperMesh. There is no utility menu in the desktop version. Thanks!

[zhangws55 0]

Tried Fill Hole. It doesn't work for my cases. Any other suggestions?

 

Cheers

[Rahul R 316]

could you share hm file only of the problematic region.Will suggest accordingly.

[Guest]

Try recreating mesh over that region using (F6) create or use rule option in 2D page.

[zhangws55 0]

On 10/06/2016 at 5:01 PM, Rahul R said:

could you share hm file only of the problematic region.Will suggest accordingly.

 

.hm file attached. Thank you.

hole in shellmesh.hm

[Rahul R 316]

PFA corrected hm file & steps captured in video use ftp link below.

https://ftin.india.altair.com:8443/message/aLfHYaVKHueySstR16elcE

 

hole in shellmesh_updated.hm

[zhangws55 0]

Thanks Rahul, for the video.

 

It seems like manual hole filling is the only option? Any reason why the Hole Fill option does not work?

 

I am asking because I will be dealing with a large number of situations like this so it would obviously be more convenient if this hole filling process can be a little bit more automated. 

 

Thanks a lot.

Wensong

[Guest]

20 minutes ago, zhangws55 said:

It seems like manual hole filling is the only option? Any reason why the Hole Fill option does not work?

 

I am asking because I will be dealing with a large number of situations like this so it would obviously be more convenient if this hole filling process can be a little bit more automated. 

 

Fill hole will work with circular or partially circular shaped holes. I tried with a quadrilateral hole and came out without filling the gap.

 

The only way is to use 2D meshing options like ruled, spline etc... If the gap in mesh is continuous then you can use spline to fill.

 

Maybe someone can create an RFE for this.