*HEADING
 NAFEMS BENCHMARK EXAMPLE 3DNLG-2  - SC8R
 ELASTIC LARGE DEFLECTION RESPONSE OF PEAR-SHAPED CYLINDER UNDER END SHORTENING
*NODE, NSET=NLEFT
*NCOPY,CHANGENUMBER=10000,OLDSET=NLEFT,SHIFT,NEWSET=NRIGHT
*NFILL,NSET=NALL
 NLEFT,NRIGHT,10,1000
*ELEMENT,TYPE=sc8r
*ELGEN,ELSET=ELALL
*SHELL SECTION,ELSET=ELALL,MATERIAL=MAT1,POISSON=0.3,THICKNESS MODULUS=1.0E5
 0.01,
*MATERIAL,NAME=MAT1
*ELASTIC
 1.0E7,0.3
*NSET,NSET=CENTRE,GEN
*NSET,NSET=DEPEND,GEN
*NSET,NSET=MIDDEPEND,GEN
*NSET,NSET=INDEP
*NSET,NSET=NODE1
*BOUNDARY
 NLEFT,ZSYMM
 CENTRE,XSYMM
 MIDDEPEND,1,2
*EQUATION
 MIDDEPEND,3,1.0,INDEP,3,-1.0
*STEP,NLGEOM,INC=200
*STATIC,RIKS
 0.2,1.0,,5.0,,1,2,-0.032
*BOUNDARY
 INDEP,3,,-0.0001
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=INDEP
 RF,
*NODE OUTPUT,NSET=NODE1
 U,
*END STEP