*HEADING
: *DSLOAD FOR STRESS-DISPLACEMENT ELEMENTS  [MAX1]
*NODE,NSET=NALL
  1, 5., 2.
  3, 5., 12.
*ELEMENT,TYPE=MAX1, ELSET=EALL
  1, 1,3
*surface, NAME=TOP
 EALL,SPOS
*surface, NAME=BOT
 EALL,SNEG
*MEMBRANE SECTION,MATERIAL=MAT, ELSET=EALL
 .5, 
*MATERIAL,NAME=MAT
*ELASTIC
 30.E6, .3
*DENSITY
 1., 
*BOUNDARY
 NALL, 1,2
*STEP,PERTURBATION
*STATIC
*OUTPUT,HISTORY,FREQUENCY=1
*ENERGY OUTPUT,VARIABLE=PRESELECT
*OUTPUT,FIELD
*NODE OUTPUT
RF,
*ENERGY PRINT
*EL PRINT, TOTALS=YES
 LOADS,
 IVOL,
 EVOL,
*OUTPUT,FIELD
*ELEMENT OUTPUT
LOADS,
IVOL,
EVOL,
*NODE PRINT
 RF, 
*DSLOAD
 BOT, P, -1000.
*END STEP
*STEP,PERTURBATION
*STATIC
*DSLOAD
 TOP, HP, 1000., 12., 0.
*END STEP