*HEADING
 MLTF ELBOW: IN-PLANE BENDING. ELBOW32-6 MODES MODEL,LAMDA=.167 
 MESH USES 4+6+12 ELEMENTS. SECTION INTEGRATION: 7,18,6
*NSET,NSET=NPRT
 100,4500
*NODE,NSET=LOADEND
 100,0.,24.,-24.
*NODE,NSET=END2
 900,0.,24.0,0.
*NODE,NSET=END3
2100,0.,0.,24.
*NODE,NSET=FIXEDEND
4500,0.,-72.,24.
*NGEN,NSET=PYZ
100,900,100
2100,4500,100
*NGEN,LINE=C,NSET=PYZ
 900,2100,100,0,0.,0.,0.,1.
*ELEMENT,TYPE=ELBOW32
101,100,200,300
1101,2100,2200,2300
*ELGEN,ELSET=LEG1
101,4,200,100
*ELGEN,ELSET=LEG2
1101,12,200,100
*ELEMENT,TYPE=ELBOW32
501,900,1000,1100
*ELGEN,ELSET=LBOW
501,6,200,100
*ELSET,ELSET=ALL
 LEG1,LEG2,LBOW
*MATERIAL ,NAME=PIPE
*ELASTIC
28.1E6,.2642
*PLASTIC
39440.,0.
50170.,.00473
54950.,.01264
58540.,.02836
61520.,.0491
76520.,.105
*BEAM SECTION,SECTION=ELBOW,ELSET=LEG1,MATERIAL=PIPE
8.01,.37
0.,100.,-12.
7,18,6
*BEAM SECTION,SECTION=ELBOW,ELSET=LEG2,MATERIAL=PIPE
8.01,.37
0.,-36.,100.
7,18,6
*BEAM SECTION,SECTION=ELBOW,ELSET=LBOW,MATERIAL=PIPE
8.01,.41,24.
0.,24.,24.
7,18,6
*BOUNDARY
PYZ,1
PYZ,5,6
FIXEDEND,1,6
FIXEDEND,NODEFORM
LOADEND,NODEFORM
*NSET,NSET=NOUT,GENERATE
100,4500,100
*RESTART,WRITE,FREQUENCY=10
***STEP,INC=1,NLGEOM
**  APPLY PRESSURE
***STATIC
***DLOAD,OP=NEW
** ALL,PI,500.,15.65,OPEN
***CLOAD,OP=NEW,FOLLOWER
**100,3,-9.5764E4
***CONTROLS,PARAM=FIELD,FIELD=DISP
** 1.,1.,,1000.
***CONTROLS,PARAM=FIELD,FIELD=ROT
** 1.,1.,,6000.
***EL PRINT,FREQ=0
**PE
***NODE PRINT,NSET=NPRT
**U
**RF
***NODE FILE,NSET=NOUT
**U,RF
***END STEP
*STEP,NLGEOM
HOLD PRESSURE CONSTANT, APPLY BENDING ACTION
*STATIC,RIKS
 .05, 1.,.005,.5,2.0,100,4,-.2
*BOUNDARY
100,4,4,-.2
*CONTROLS,PARAMETERS=FIELD,FIELD=DISPLACEMENT
 1.,1.,,10000.
*CONTROLS,PARAMETERS=FIELD,FIELD=ROTATION
 1.,1.,,60000.
*MONITOR,NODE=100,DOF=4
*EL PRINT,FREQUENCY=0
PE, 
*NODE PRINT,NSET=NPRT
U, 
RF, 
*NODE FILE,NSET=NOUT
U,RF
*END STEP