Mesh intersection

Altair Forum User

in the first image we can see the geometry and in the second I imported the file mesh - entersection.nas , thanks to this I saw where I have the mesh problems , but now how do I resolve the problem(mesh intersection) ?

ps:the original file is a stl

Thanks 

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tinh

Hi

are you intending to use STL mesh for analysis? You shouldn't because STL mesh is very ugly!

Try import Geometry File (IGES, STP) to make FE model

 

STL mesh is just for shape representation

gopal_rathore

Hi,

Yes, STL mesh will represent the shape and will not have a good quality to perform simulation. It is being generally used in making of components using RPT (Rapid prototyping technique) which uses layering concept for formation of the product using plastic or metal.

Altair Forum User

Hi,

Thanks for the reply.

 

the problem is : if I use also a .iges files I still have the problem of mesh intersection . how can I eliminate these intersections ?

which features can I use?

Altair Forum User

At your case, I'll make two coincident meshes to eliminate the intersection issue. When done, just use fonction 'detach' to separate two meshes.

Altair Forum User

How do i create two coincident mesh ??

Rahul_P1

You can edit the geometry in such a way as to not have any intersections, this should be the first step.

You can use tool > penetrations to identify and fix intersections. 

Altair Forum User

No intersection of geometry can not guarantee no intersection of mesh. The difference of mesh density can create intersections.