*HEADING
TERZAGHI CONSOLIDATION - FINITE STRAIN
*PREPRINT,HISTORY=NO
*RESTART,WRITE,FREQUENCY=2
*ELEMENT,TYPE=CPE4P,ELSET=ONE
*ELGEN,ELSET=EALL
*ELSET,ELSET=P1
*NODE
*NGEN,NSET=NALL
*NSET,NSET=TOP
*NSET,NSET=BASE
*NSET,NSET=FILE
*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
10001,1,2
10001,6,6
10002,1,2
10002,6,6
10003,1,2
10003,6,6
*surface, NAME=BASESURF
1,S1
*rigid body,analytical surface=BASERIGI,REFNODE=10001
*surface,name=BASERIGI,TYPE=SEGMENTS
START, -1.0, 0.0
LINE,  51.0, 0.0
*SURFACE INTERACTION,NAME=IBASE
1.,
*CONTACT PAIR,INTERACTION=IBASE
BASESURF, BASERIGI
**
**
*surface, NAME=LEFTSURF
EALL,S4
*rigid body,analytical surface=LEFTRIGI,REFNODE=10002
*surface,name=LEFTRIGI,TYPE=SEGMENTS
START, 0.0, 101.0
LINE,  0.0, .0
*SURFACE INTERACTION,NAME=ILEFT
1.,
*CONTACT PAIR,INTERACTION=ILEFT
LEFTSURF, LEFTRIGI
**
**
*surface, NAME=RIGHTSUR
EALL,S2
*rigid body,analytical surface=RIGHTRIG,REFNODE=10003
*surface,name=RIGHTRIG,TYPE=SEGMENTS
START, 50.0, .0
LINE,  50.0, 101.0
*SURFACE INTERACTION,NAME=IRIGHT
1.,
*CONTACT PAIR,INTERACTION=IRIGHT
RIGHTSUR, RIGHTRIG
**
**
*AMPLITUDE,NAME=BC,TIME=TOTAL TIME,VALUE=ABSOLUTE
0.,1.E8,.01,0.
*STEP
  SUDDENLY APPLIED LOAD
*SOILS,CONSOLIDATION
*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
*BOUNDARY,AMPLITUDE=BC
TOP,8
*OUTPUT,FIELD,FREQ=20
*ELEMENT OUTPUT,ELSET=ONE
E,
*NODE OUTPUT,NSET=FILE
U,
POR,
*NODE PRINT,F=0
*EL PRINT, F=0
*END STEP