[CIG-SHORT] Insert fault in a grid using cubit

Brad Aagaard baagaard at usgs.gov
Tue Nov 13 23:51:46 PST 2012


Birendra,

I am not sure I follow what you are trying to do. You can create a 
planar surface to divide a volume using webcut. I have never tried this 
on an existing mesh, I always create the geometry and then the mesh.

You can try sending this to the cubit support group (see cubit.sandia.gov).

Brad



On 11/13/12 4:15 PM, Birendra jha wrote:
> Dear developers/users
>
> I have a hexahedral 3D grid in CUBIT and I want to insert a planar
> fault in the grid. Please see the attached pictures. The grid is not
> generated inside the cubit but is imported from a Abaqus *.inp file
> (nodesets, element sets). I don't have the surfaces used in
> generating the original grid but I have element sets for each layer.
> After faulting, I want to preserve the gridding as much as possible
> because it reflects some structure.
>
> How do I do that? I created a planar fault surface with 3 nodes. I
> tried webcut and meshcut but it's difficult to preserve the structure
> without a surface that can constrain gridding.
>
> Is it possible to create a surface from an element set (a cubit group
> entity with hex elements in it)? Is it possible to click and select
> vertices on the grid, then create surface from it?
>
> Any ideas will be helpful.
>
> Thanks Birendra
>



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