Groups Lose Track of Geometry After Splitting

[RealSaladsamurai]

If I have a surface in a group and I then use the splitting function Geometry > Curve - From Surface to split the surface into two smaller surfaces, the group will lose one of the smaller surfaces. Is there any way to have Femap automatically add all of the subsurfaces?

________________________
FEMAP v11.1.0
MSC Nastran v2013

 

[rb1957]

under group, operations, automatic add

another day in paradise, or is paradise one day closer ?

 

[RealSaladsamurai]

Hi rb1957 - It looks like I made the example too simplified. Automatic add works for this simple case. Assume you have two solids s1 & s2 each in their own groups g1 & g2. Then say you split both surfaces using technique above. I would want only the child surfaces of s1 to end up in g1 and the child surfaces of s2 in g2.

I feel like this would probably require a custom api. That is what I am trying now, but I am having issues using the curves - from surface command via API. Even though I have the feCurveUpdateSurfaces flag set to true, using feCurveProjectOntoSurfaces does not actually split the surfaces. Furthermore, feCurveProjectOntoSurfaces does not output the new surface IDs.

________________________
FEMAP v11.1.0
MSC Nastran v2013

 

[rb1957]

so make g1 active when splitting s1, and g2 active when splitting s2 (if auto add is set to "active group")

another day in paradise, or is paradise one day closer ?

 

[rb1957]

geometry items should work well. splitting elements divorces them from the geometry and they may lose their group association.

another day in paradise, or is paradise one day closer ?

 

[RealSaladsamurai]

One of the advantages of using the Curves - from Surfaces method to split faces is that you can select many faces and curves at the same time and it will only split faces that it makes sense to (i.e. faces that have a corresponding curve that when projected normal to face will intersect that face). So I can split 50 faces at once using various curves. The faces may be in 5 or 6 groups. Having to do this for each group somewhat defeats the purpose of splitting this way (i.e. the expedience).



________________________
FEMAP v11.1.0
MSC Nastran v2013