*HEADING
 NAFEMS R0031/3 THREE-LAYER SANDWICH SHELL UNDER NORMAL PRESSURE LOADING [SC8R]
 STACKED
*NODE
   1, 0., 0., -0.403
   9, 5., 0., -0.403
  81, 0., 5., -0.403
  89, 5., 5., -0.403
1001, 0., 0., -0.375
1009, 5., 0., -0.375
1081, 0., 5., -0.375
1089, 5., 5., -0.375
2001, 0., 0., 0.375
2009, 5., 0., 0.375
2081, 0., 5., 0.375
2089, 5., 5., 0.375
3001, 0., 0., 0.403
3009, 5., 0., 0.403
3081, 0., 5., 0.403
3089, 5., 5., 0.403
*NGEN,NSET=BOT
   1,   9,1
1001,1009,1
2001,2009,1
3001,3009,1
*NGEN,NSET=TOP
  81,  89,1
1081,1089,1
2081,2089,1
3081,3089,1
*NSET,NSET=LEFT,GEN
   1,  81,10
1001,1081,10
2001,2081,10
3001,3081,10
*NSET,NSET=RIGHT,GEN
   9,  89,10
1009,1089,10
2009,2089,10
3009,3089,10
*NFILL,NSET=NALL
BOT,TOP,8,10
*ELEMENT,TYPE=SC8R,ELSET=ELALL
    1,1,2,12,11,1001,1002,1012,1011
 1001,1001,1002,1012,1011,2001,2002,2012,2011
 2001,2001,2002,2012,2011,3001,3002,3012,3011
*ELGEN,ELSET=ELFACES
 1,8,1,1,8,10,8
 2001,8,1,1,8,10,8
*ELGEN,ELSET=ELCORE
 1001,8,1,1,8,10,8
*ELSET,ELSET=ELALL
 ELCORE,
 ELFACES,
*ELSET,ELSET=ELBOTFACE,GEN
 1,89,1
*ELSET,ELSET=OUTPUT
   64,
 1064,
 2064,
*NSET,NSET=NOUT
 89,
 1089,
 2089,
 3089, 
*SHELL SECTION,ELSET=ELFACES, MATERIAL=FACE
.028,3
*SHELL SECTION,ELSET=ELCORE, MATERIAL=CORE
.75,3
*MATERIAL,NAME=FACE
*ELASTIC,TYPE=ENGINEERING CONSTANTS
 10.E6,4.E6,4.E6,.3,.3,.3,1.875E6,1.875E6,
 1.875E6,
*MATERIAL,NAME=CORE
*ELASTIC,TYPE=ENGINEERING CONSTANTS
 10.,10.,10.,0.,0.,0.,10.,3.E4,
 1.2E4,
*BOUNDARY
 BOT,1
 BOT,3
 TOP,2
 LEFT,2,3
 RIGHT,1
**
*STEP
*STATIC
*DLOAD
 ELBOTFACE,P1,100
*OUTPUT, FIELD
*ELEMENT OUTPUT, POSITION=NODES
 1,2,3
 S,
*NODE OUTPUT
 U,
*EL FILE,ELSET=OUTPUT,POSITION=AVERAGED AT NODES
 1,2,3
 S, 
*END STEP