*HEADING
 NAFEMS R0031/3, THREE-LAYER SANDWICH SHELL UNDER NORMAL PRESSURE LOADING [SC8R]
*preprint, model=yes
*NODE
*NGEN
*NSET,NSET=BOT1,GEN,UNSORT
*NSET,NSET=BOT2,GEN,UNSORT
*NSET,NSET=BOT,UNSORT
BOT1,BOT2
*NGEN
*NSET,NSET=TOP,GEN,UNSORT
*NSET,NSET=LEFT1,GEN,UNSORT
*NSET,NSET=LEFT2,GEN,UNSORT
*NSET,NSET=LEFT,UNSORT
LEFT1,LEFT2
*NSET,NSET=ZBC,GEN
*NSET,NSET=ZBC
BOT1
BOT2
*NSET,NSET=RIGHT,GEN,UNSORT
*NFILL,NSET=NALL
BOT,TOP,8,10
*ELEMENT,TYPE=SC8R,ELSET=ELALL
*ELGEN,ELSET=ELALL
*ELSET,ELSET=OUTPUT
*NSET,NSET=NOUT
*SHELL SECTION,ELSET=ELALL,COMPOSITE,THICKNESS MODULUS=1E8,POISSON=0.0
.028,3,FACE
.75,3,CORE
.028,3,FACE
*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,
*EQUATION
 BOT1,2,1.0, BOT2,2,1.0
LEFT1,1,1.0,LEFT2,1,1.0
*BOUNDARY
TOP,2
RIGHT,1
BOT,1
LEFT,2
 ZBC,3
**
*STEP
*STATIC
*DLOAD
ELALL,P1,100
*OUTPUT, FIELD
*ELEMENT OUTPUT
 S,
*OUTPUT, FIELD
*ELEMENT OUTPUT, POSITION=NODES
 S,
 MISESONLY,PRESSONLY
*NODE OUTPUT
 U,
*EL FILE,ELSET=OUTPUT,POSITION=AVERAGED AT NODES
S,
*END STEP