/GRSHEL

1.	A shell group is a set of 4 node shells (only). It can be defined explicitly by a list of:

•

shell ID

•	subsets or parts (all shells belonging to the listed subsets/parts are included)

•	submodels (all shells defined in the listed submodels are included)

•	property sets or materials (all shells having those Property Type's/MID's are included)

•	shell groups

•	a box (all shells within a defined box are included)

2.	Shell groups are used to define sections, TH output.

3.	Shell groups cannot contain 3 node shell elements (use /GRSH3N instead).