*HEADING
TERZAGHI CONSOLIDATION - FINITE STRAIN          
*PREPRINT,HISTORY=NO
*RESTART,WRITE,FREQUENCY=2
*ELEMENT,TYPE=CPE4P,ELSET=ONE
1,1,3,23,21
*ELGEN,ELSET=EALL
1,10,20
*ELSET,ELSET=P1
6,7,8
*NODE
1,
2,25.
3,50.
201,,100.
202,25.,100.
203,50.,100.
*NGEN,NSET=NALL
1,201,10
2,202,20
3,203,10
*NSET,NSET=TOP
201,202,203
*NSET,NSET=BASE
1,2,3
*NSET,NSET=FILE
141,
*SOLID SECTION,MATERIAL=A1,ELSET=EALL
*MATERIAL,NAME=A1
*PERMEABILITY,SPECIFIC=1.0
.00002,1.
.0002,1.5
*ELASTIC
1.E8,.3
*INITIAL CONDITIONS,TYPE=RATIO
NALL,1.5
*BOUNDARY
BASE,1,2
NALL,1
*AMPLITUDE,NAME=BC,TIME=TOTAL TIME,VALUE=ABSOLUTE
0.,1.E8,.01,0.
*STEP
  SUDDENLY APPLIED LOAD
*SOILS,CONSOLIDATION
1.E-7,1.E-7
*DLOAD
10,P3,1.E8
*EL PRINT,FREQUENCY=25
S,MISES,E
*NODE PRINT,FREQUENCY=5
U,POR,RVT
*OUTPUT,FIELD,FREQ=0
*OUTPUT,HISTORY,FREQ=0
*END STEP
*STEP,INC=100,NLGEOM
 CONSOLIDATE
*SOILS,CONSOLIDATION,UTOL=5.E7,END=SS
.001,100.,.001,100.,100.
*BOUNDARY,AMPLITUDE=BC
TOP,8
***PRINT,RESIDUAL=NO
*OUTPUT,FIELD,FREQ=5
*ELEMENT OUTPUT,ELSET=ONE
E,
*NODE OUTPUT,NSET=FILE
U,
POR,
*END STEP