*HEADING
ELEMENTS        : B21, PSI24
ANALYSIS        : LARGE DISPLACEMENT
MATERIAL MODEL  : LINEAR ISOTROPIC, FIELD VARIABLE DEPENDENT
*PRE PRINT,ECHO=NO,MODEL=YES,CONTACT=NO,HISTORY=YES
*NODE,NSET=NALL
*NSET,NSET=FAR-FIELD
*NSET,NSET=NPSI11
*NSET,NSET=NPSI12
*NSET,NSET=FARF11
*NSET,NSET=FARF12
*ELEMENT,TYPE=B21   ,ELSET=PIPELINE1
*ELEMENT,TYPE=PSI24 ,ELSET=PSI241
*ELSET,ELSET=PSI24
PSI241,
*BEAM SECTION,ELSET=PIPELINE1,SECTION=PIPE,MATERIAL=STEEL
0.3,0.01
*PIPE-SOIL INTERACTION,ELSET=PSI241
*PIPE-SOIL STIFFNESS,TYPE=LINEAR,DEP=1
*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
*AMPLITUDE,NAME=RAMP,TIME=TOTAL TIME
0.0,1.0,12.0,2.0
*INITIAL CONDITIONS,TYPE=FIELD,VARIABLE=1
NALL,1.0
*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
NALL     ,6,6, 0.0
*BOUNDARY,AMPLITUDE=CYCLEONE
NPSI11   ,1,1,+3.00D-03
NPSI12   ,1,1,+3.00D-03
*FIELD,AMPLITUDE=RAMP,VARIABLE=1
NALL,1.0
*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,EE
*NODE OUTPUT
 U,RF
*OUTPUT,HISTORY,FREQ=100
*ELEMENT OUTPUT,ELSET=PSI24
 S,E,EE
 NFORC,
*NODE OUTPUT,NSET=NALL
 U,RF
*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
*CLOAD,AMPLITUDE=CYCLEONE
FARF11   ,1  ,+2.00D+03
FARF12   ,1  ,+2.00D+03
*MONITOR,NODE=3,DOF=1
*END STEP