*HEADING
 PURE BENDING OF CURVED PIPE WITH ELBOW31B
*NODE,nset=nall
1,0.
2,.9997106733,-.0208303194
*ELEMENT,TYPE=ELBOW31B,ELSET=EALL
1,1,2
*BEAM SECTION,SECTION=ELBOW,MATERIAL=A1,ELSET=EALL
8.01,.41,24.
0.,100.,0.
7,12,4
*MATERIAL,NAME=A1
*ELASTIC
28.1E6,.2642
**
** uncomment the following option for the 
** elastic-plastic case
**
***PLASTIC
**39440.,0.
**50170.,.00473
**54950.,.01264
**58540.,.02836
**61520.,.0491
**76520.,.105
*BOUNDARY
1,1,6
2,3,5
*STEP, NLGEOM, INC=20
*STATIC
 .1,1.
*BOUNDARY
2,6,6, -.01
*MONITOR,NODE=2,DOF=6
*EL PRINT,FREQUENCY=5
E, 
PE, 
*EL FILE,FREQUENCY=5
E, 
PE, 
*NODE FILE
U, 
RF, 
CF, 
*output,history,op=add,freq=1
*node output,nset=nall
u,rf
*element output,elset=eall
e,pe
*END STEP