*heading
*preprint,model=yes
*node,nset=nbot
1,5.,0.,2.
2,3.535533906,3.535533906,2.
3,0.,5.,2.
4,-3.535533906,3.535533906,2.
5,-5.,0.,2.
6,-3.535533906,-3.535533906,2.
7,0.,-5.,2.
8,3.535533906,-3.535533906,2.
*node,nset=nmid
101,5.,0.,7.
201,3.535533906,3.535533906,7.
301,0.,5.,7.
401,-3.535533906,3.535533906,7.
501,-5.,0.,7.
601,-3.535533906,-3.535533906,7.
701,0.,-5.,7.
801,3.535533906,-3.535533906,7.
*node,nset=ntop
11,5.,0.,12.
21,3.535533906,3.535533906,12.
31,0.,5.,12.
41,-3.535533906,3.535533906,12.
51,-5.,0.,12.
61,-3.535533906,-3.535533906,12.
71,0.,-5.,12.
81,3.535533906,-3.535533906,12.
**
*nset,nset=nall
nbot,ntop,nmid
*element,type=mcl9,elset=one
1,1,11,31,3,101,21,301,2,201
2,3,31,51,5,301,41,501,4,401
3,5,51,71,7,501,61,701,6,601
4,7,71,11,1,701,81,101,8,801
*membrane section,elset=one,material=mone
0.5
*transform,nset=nall,type=c
0.,0.,0.,0.,0.,1.
*material,name=mone
*ELASTIC
 30.E6, .3
*DENSITY
 1., 
*foundation
one,f,300.
*step,perturbation
*static
*boundary
nall,1,1,0.2
nall,2,3,
*output,history,frequency=0
*output,field
*node output
rf,
*end step