*HEADING
 COLLAPSING PIPE SECTION - CPEG6M                          
*NODE, NSET=REFND
 1, 
*NODE,NSET=SYM
 101,0.,-28.55
 201,0.,-30.925
 301,0.,-33.3
 401,0.,-35.675
 501,0.,-38.05
 117,0.,28.55
 217,0.,30.925
 317,0.,33.3
 417,0.,35.675
 517,0.,38.05
*NGEN,LINE=C
 101,117,1,1,,,,0.,0.,1.
 201,217,1,1,,,,0.,0.,1.
 301,317,1,1,,,,0.,0.,1.
 401,417,1,1,,,,0.,0.,1.
 501,517,1,1,,,,0.,0.,1.
*ELEMENT,TYPE=CPEG6M
 1,101,303,103,202,203,102
11,101,301,303,201,302,202
21,301,501,303,401,402,302
31,501,503,303,502,403,402
41,103,303,105,203,204,104
51,303,305,105,304,205,204
61,303,505,305,404,405,304
71,303,503,505,403,504,404
*ELGEN,ELSET=ALL
 1,4,4,1
11,4,4,1
21,4,4,1
31,4,4,1
41,4,4,1
51,4,4,1
61,4,4,1
71,4,4,1
*ELSET,ELSET=PRINT,GEN
 1,31,10
42,72,10
 3,33,10
44,74,10
*SOLID SECTION,MATERIAL=MAT,ELSET=ALL,REFNODE=REFND
*MATERIAL,NAME=MAT
*ELASTIC
 2.08E5,.3
*PLASTIC
 316.,0.
 324.,.02
 388.,.04
 431.,.06
 464.,.08
 492.,.1
 547.,.15
 589.,.2
 624.,.25
 654.,.3
 705.,.4
 747.,.5
 784.,.6
 816.,.7
 845.,.8
 871.,.9
 895.,1.
*BOUNDARY
 SYM,XSYMM
 1,5
 509,2
*RESTART,WRITE,FREQUENCY=5
*STEP,NLGEOM
*STATIC,RIKS
 .01,1.,.001, , ,1,4,.03
*BOUNDARY
 1,4,4,.05
*MONITOR,NODE=1,DOF=4
*NODE PRINT,FREQUENCY=10
 U,
 RF,
*NODE FILE,NSET=REFND
 U,RF
*OUTPUT,FIELD
*NODE OUTPUT
 U,RF
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=REFND
 U,RF
*EL PRINT,ELSET=PRINT,FREQUENCY=5
 E, 
 PE, 
*EL FILE,ELSET=PRINT,FREQUENCY=5
 E,PE
*OUTPUT,FIELD,FREQ=5
*ELEMENT OUTPUT
 E,PE
 PEEQ,
 SINV,
*ENERGY PRINT,FREQUENCY=2
*END STEP