*HEADING
: MEMBRANE LOADING  [CPEG3]
*PREPRINT,ECHO=YES,HISTORY=YES,MODEL=YES
*NODE
 1, 0.0, 0.0
 2, 2.0, 0.0
 3, 2.0, 1.0
 4, 0.0, 1.0
 1001,  0.0, 0.0
*ELEMENT,TYPE=CPEG3, ELSET=EALL
 1, 1,2,3
 2, 1,3,4
*SOLID SECTION,MATERIAL=A1,ELSET=EALL,REFNODE=1001
 1.0, 
*MATERIAL,NAME=A1
*ELASTIC,TYPE=ISOTROPIC
 30.0E6,0.3
*BOUNDARY
 1,1,2
 2,2
 1001,3,5
*STEP
*STATIC
*DLOAD,OP=NEW
 1, P2, 1000.0
 2, P2, 1000.0
 2, P3, 1000.0
*CLOAD
 2,1,  1000.0
 3,1, -1000.0
 3,2,  -500.0
 4,2,   500.0
 4,1, -1000.0
*EL FILE
 S,COORD,
 E,
 LOADS,
*OUTPUT,FIELD
*ELEMENT OUTPUT
 S,COORD,
 E,
 LOADS,
*ENERGY FILE
*OUTPUT,HISTORY,FREQUENCY=1
*ENERGY OUTPUT,VARIABLE=PRESELECT
*NODE FILE
 U,COORD
*OUTPUT,FIELD
*NODE OUTPUT
 U,COORD
*NODE PRINT
 U,COORD
*EL PRINT
 S,COORD,
 E,
 LOADS,
*END STEP