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Shell edge loading using *dsload

Shell edge loading using *dsload

Shell edge loading using *dsload

(OP)
I have a load step in my analysis where a pressure load is applied to some shell elements, and this error is occuring:

***ERROR: SURFACE ELEM15E3 INCLUDES EDGES. EXCEPT FOR SHELL EDGE LOADING, SURFACES WHICH INCLUDE EDGES CANNOT BE USED WITH *DSLOAD, *DSFLUX, *SFILM, *SRADIATE, *DSFLOW, *SFLOW, *DSECHARGE, *DSECURRENT, *SIMPEDANCE OR *INCIDENT WAVE.

The user's manual indicates that under distributed loads (*dsload), I have the ability to apply a pressure on "the element reference surface."  In a different section of the manual (2.3.2), it lists for s4r elements, the surface options are spos, sneg (the two faces) and then e1, e2, e3, e4 (the four edges).

What does not make sense to me is that the error says that "surfaces which include edges cannot be used with *dsload..." ... "except for shell edge loading".  I would understand if it were a warning, saying that if it's not shell edge loading, the loads will not be applied, but creating a fatal error seems odd, considering that it IS shell edge loading.

From my input file:
-----
*elset, elset=elem15
1151,1152
*surface, type=element, name=elem15E3
elem15,E3

...

*dsload
elem15E3,p,9.51575
-----

Any ideas?  I'm thinking it might be a glitch and I'll be emailing HKS, but thought I'd see if anyone else could see an immediate problem, or had had this happen to them.  Thanks!

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