Nastran pyramid

Coreform Cubit Importing/Exporting
#1

When I ran the following script, pyramids are surely generated.

reset
brick x 2 y 1 z 1
surface 1 size auto factor 10
mesh surface 1
volume 1 scheme tetmesh
volume 1 size auto factor 10
mesh volume 1
graphics mode smoothshade
#draw hex all tet all
draw pyramid all
export nastran “test.bdf” dimension 3 overwrite everything large

However, when I import the generated Nastran file, the pyramids will disapper.

reset
import nastran mesh geometry “test.bdf” feature_angle 135.00
#draw hex all tet all
draw pyramid all

Any reason?

#2

Hi,

The Nastran import code is older, has not had bugs reported against it, and does not support pyramid elements on import.

The Nastran import code probably does not get much usage. I will create a bug and look at how much effort it would require to add pyramid support on input.

Thanks,
Karl