*HEADING
EI23PFSS: PORE PRESSURE COUPLED CONTACT (CPE8P) (NO SLIDING)
*restart, write,F=2
*NODE,NSET=NALL
101,-0.0,0
102,1.0,0
103,1.0,1
104,-0.0,1.0
201,0.5,0
202,1.0,0.5
203,0.5,1
204,-0.0,0.5
**
105,0.0,1.0
106,1.0,1.0
107,1.0,2.0
108,0.0,2.0
205,0.5,1.0
206,1.0,1.5
207,0.5,2.0
208,0.0,1.5
*ELEMENT,TYPE=CPE8P,ELSET=BOT
11,101,102,103,104,201,202,203,204
*ELEMENT,TYPE=CPE8P,ELSET=UP
21,105,106,107,108,205,206,207,208
*ELSET,ELSET=EALL
BOT,UP
*SOLID SECTION,ELSET=EALL,MATERIAL=MAT
*MATERIAL,NAME=MAT
*ELASTIC
30.E6,0.0
*PERMEABILITY,SPECIFIC=1.0
 1.E-4, 
*surface,NAME=MAS
BOT,S3
*surface,NAME=SLA
UP,S1
*SURFACE INTERACTION,NAME=ISLS
1.,
*SURFACE BEHAVIOR, AUGMENTED
*CONTACT PAIR,INTERACTION=ISLS
SLA, MAS
*BOUNDARY
101,1,2
201,1,2
102,1,2
108,1,1
*INITIAL CONDITIONS,TYPE=RATIO
NALL,1.
*STEP
*SOILS, CONSOLIDATION
 0.1 , 1.
*BOUNDARY
101,8,8,1
102,8,8,1
107,8,8,2
108,8,8,2
*DLOAD
UP,P3,10
*CONTACT PRINT,F=10
PFL,PFLA,PTL,PTLA
TPFL,TPTL
**
*CONTACT FILE,F=10
CAREA,
PFL, PFLA, PTL, PTLA
TPFL,TPTL
*NODE PRINT,F=10
POR,
*NODE FILE,F=10
POR,
*EL PRINT, F=0
*ENDSTEP