*HEADING
ELEMENTS        : B22, PSI26
ANALYSIS        : LARGE DISPLACEMENT, USER DEFINED ORIENTATION
MATERIAL MODEL  : LINEAR, UNSYMMETRIC STIFFNESS
*PRE PRINT,ECHO=NO,MODEL=YES,CONTACT=NO,HISTORY=YES
*NODE,NSET=NALL
 1, 0.0, 0.0, 0.0
 2, 1.0, 0.0, 0.0
 3, 1.0, 1.0, 0.0
 4, 0.0, 1.0, 0.0
 5, 0.5, 0.0, 0.0
 6, 0.5, 1.0, 0.0
*NSET,NSET=FAR-FIELD
 3, 4, 6,
*NSET,NSET=NPSI11
 1,
*NSET,NSET=NPSI12
 2,
*NSET,NSET=NPSI13
 5,
*NSET,NSET=FARF11
 4,
*NSET,NSET=FARF12
 3,
*NSET,NSET=FARF13
 6,
*ELEMENT,TYPE=B22   ,ELSET=PIPELINE1
 1, 1, 5, 2
*ELEMENT,TYPE=PSI26 ,ELSET=PSI261
 2, 1, 2, 3, 4, 5, 6
*ELSET,ELSET=PSI26
PSI261,
*ORIENTATION,NAME=LOCALP,DEFINITION=COORDINATES,SYSTEM=RECTANGULAR
0.8660254,0.5000000, 0.0000000,-0.5000000,0.8660254, 0.0000000
3,0.0
*BEAM SECTION,ELSET=PIPELINE1,SECTION=PIPE,MATERIAL=STEEL
0.3,0.01
*PIPE-SOIL INTERACTION,ELSET=PSI261,ORIENTATION=LOCALP
*PIPE-SOIL STIFFNESS,TYPE=LINEAR
1.0D+06,5.0D+05
*MATERIAL,NAME=STEEL
*ELASTIC
2.1E11,0.3
*PLASTIC
2.0E8,0.0
*AMPLITUDE,NAME=CYCLEONE,TIME=STEP TIME
0.0, 0.0,1.0,1.0,2.0, 0.0,3.0,-1.0
4.0, 0.001
**********************************
*STEP,INC=100,NLGEOM
*STATIC
0.1,4.0,,0.1
*BOUNDARY
FAR-FIELD,1,2, 0.0 
NPSI11   ,2,2, 0.0 
NPSI12   ,2,2, 0.0 
NPSI13   ,2,2, 0.0 
NALL     ,6,6, 0.0 
*BOUNDARY,AMPLITUDE=CYCLEONE
NPSI11   ,1,1,+3.00D-03
NPSI12   ,1,1,+3.00D-03
NPSI13   ,1,1,+3.00D-03
*NODE PRINT,FREQ=10
 U,
RF
*EL PRINT,FREQ=10
 S11,S22,E11,E22,
 NFORC,
 EE,
 E,
 COORD,
*OUTPUT,FIELD,FREQ=100
*ELEMENT OUTPUT
 S,E
*NODE OUTPUT
 U
*OUTPUT,HISTORY,FREQ=100
*ELEMENT OUTPUT,ELSET=PSI26
 S11,S22,E11,E22
 NFORC,
*NODE OUTPUT,NSET=NALL
 U2,RF2
*MONITOR,NODE=1,DOF=1
*END STEP
**********************************
*STEP,INC=100,NLGEOM
*STATIC
0.1,4.0,,0.1
*BOUNDARY,OP=NEW
FAR-FIELD,1,2, 0.0 
NPSI11   ,1,2, 0.0 
*BOUNDARY,AMPLITUDE=CYCLEONE,OP=NEW
NPSI11   ,6,6, 0.01
*MONITOR,NODE=2,DOF=2
*END STEP
**********************************
*STEP,INC=100,NLGEOM
*STATIC
0.1,4.0,,0.1
*BOUNDARY,OP=NEW
FARF11   ,2,2, 0.0 
FARF12   ,2,2, 0.0 
NPSI11   ,1,2, 0.0 
NPSI11   ,6,6, 0.0 
NPSI12   ,1,2, 0.0 
NPSI12   ,6,6, 0.0 
NPSI13   ,1,2, 0.0 
NPSI13   ,6,6, 0.0 
*CLOAD,AMPLITUDE=CYCLEONE
FARF11   ,1  ,+2.00D+03
FARF12   ,1  ,+2.00D+03
FARF13   ,1  ,+2.00D+03
*MONITOR,NODE=3,DOF=1
*END STEP