topic Re: How to Achieve More Even Internal 3D Mesh in Simulation Mechanical Forums (Read-Only)

How to Achieve More Even Internal 3D Mesh

Anonymous — Sun, 14 Nov 2010 11:42:46 GMT

The surface meshing is great.

However the internal 3D mesh when I review the results with the slice planes are not even in shape and size.

Is there strategy and setting to achieve better internal 3D mesh especially for hex or brick mesh?

Re: How to Achieve More Even Internal 3D Mesh

John_Holtz — Tue, 16 Nov 2010 21:11:14 GMT

Henry,

The answer to your question can be found on one of these two pages. The latter page gives a little more specific information, but keep in mind that the latter page is dealing with a different topic related to the solid mesh.

Autodesk Algor Simulation > Meshing Overview > Mesh Overview > Meshing CAD Solid Models > Model Mesh Settings > Solid
Autodesk Algor Simulation > Meshing Overview > Mesh Overview > Meshing CAD Solid Models > Model Mesh Settings > Solid > Nonpositive Jacobian Errors or Distorted Elements

Also, keep in mind that using the slice plane may not be the best way of judging the interior mesh. If you think of slicing the corner of a perfect cube, the "face" would appear to be triangular. By rotating that slice plane at different angles, the aspect of the "face" can change drastically. But this does not indicate the quality of the perfectly cubical element.

An alternative is "Display Options > Show Complete Mesh" followed by "Display Options > Shrink Elements".

Re: How to Achieve More Even Internal 3D Mesh

Anonymous — Tue, 16 Nov 2010 21:27:22 GMT

John, before I try the shrink element. What does that do, briefly.

Thanks

Re: How to Achieve More Even Internal 3D Mesh

John_Holtz — Tue, 16 Nov 2010 21:36:02 GMT

The Shrink command will allow you to shrink all the elements about their centroid. A slider bar appear so you can shrink them to the appropriate factor. THis lets you look "in between the element. Or stated another way, you will be able to see the shape of each element.

Of course, if the part is very bulky, it may be difficult to see the elements toward the middle.

Re: How to Achieve More Even Internal 3D Mesh

Anonymous — Wed, 17 Nov 2010 05:40:58 GMT

John, thank you for pointing to the reference and Shrink command.