*HEADING
ELEMENTS        : B31, PSI34
ANALYSIS        : LARGE DISPLACEMENT
MATERIAL MODEL  : ASCE CLAY MODEL, FIELD VARIABLE DEPENDENCE
*PRE PRINT,ECHO=NO,MODEL=YES,CONTACT=NO,HISTORY=YES
*NODE,NSET=NALL
 1, 0.0, 0.0, 0.0
 2, 2.0, 0.0, 0.0
 3, 2.0, 2.0, 0.0
 4, 0.0, 2.0, 0.0
*NSET,NSET=FAR-FIELD
 3, 4,
*NSET,NSET=NPSI11
 1,
*NSET,NSET=NPSI12
 2,
*NSET,NSET=FARF11
 4,
*NSET,NSET=FARF12
 3,
*ELEMENT,TYPE=B31   ,ELSET=PIPELINE1
 1, 1, 2
*ELEMENT,TYPE=PSI34 ,ELSET=PSI34
 2, 1, 2, 3, 4
*BEAM SECTION,ELSET=PIPELINE1,SECTION=PIPE,MATERIAL=STEEL
0.3,0.01
*PIPE-SOIL INTERACTION,ELSET=PSI34
*PIPE-SOIL STIFFNESS,TYPE=CLAY,DIR=1,DEPEND=1
1000.0,1.0,0.6,0.005,,1.0
1000.0,0.5,0.6,0.005,,2.0
*PIPE-SOIL STIFFNESS,TYPE=CLAY,DIR=2,DEPEND=1
0.8,0.4,0.15,0.1,,1.0
0.4,0.2,0.15,0.1,,2.0
*PIPE-SOIL STIFFNESS,TYPE=CLAY,DIR=3,DEPEND=1
0.250,0.1,,1.0
0.125,0.1,,2.0
*MATERIAL,NAME=STEEL
*ELASTIC
2.1E11,0.3
*PLASTIC
2.0E8,0.0
*AMPLITUDE,NAME=CYCLETWO,TIME=STEP TIME
0.0,+0.00000,1.0,+0.06667,2.0,-0.06667,3.0,+0.25000
4.0,-0.25000,5.0,+0.58333,6.0,-0.58333,7.0,+1.00000
8.0,-1.00000
*AMPLITUDE,NAME=RAMP,TIME=TOTAL TIME
0.0,1.0,8.0,2.0
*INITIAL CONDITIONS,TYPE=FIELD,VARIABLE=1
NALL,1.0
*STEP,INC=100,NLGEOM
*STATIC
0.1,8.0,,0.1
*BOUNDARY
FAR-FIELD,1,3, 0.0 
NPSI11   ,1,1,+2.0E-02
NPSI11   ,2,3, 0.0 
NPSI12   ,1,1,+2.0E-02
NPSI12   ,2,3, 0.0 
NALL     ,4,6, 0.0 
*FIELD,AMPLITUDE=RAMP
NALL,1.0
*NODE PRINT,FREQ=10
 U,
RF
*EL PRINT,FREQ=10
 S11,S22,S33,E11,E22,E33
 NFORC,
 EE,
 E,
 COORD,
*OUTPUT,FIELD,FREQ=100
*ELEMENT OUTPUT
 S,E,EE,PE
*NODE OUTPUT
 U,RF
*OUTPUT,HISTORY,FREQ=100
*ELEMENT OUTPUT,ELSET=PSI34
 S,E,EE,PE
 NFORC,
*NODE OUTPUT,NSET=NALL
 U,RF
*MONITOR,NODE=1,DOF=1
*END STEP