*HEADING
: FLEXIBLE JOINT WITH LINEAR BEHAVIOR  [JOINTC]
*NODE
1, 
2, 
*ELEMENT,TYPE=JOINTC,ELSET=J
1,1,2
*JOINT,ELSET=J
*SPRING
1, 
100., 
*SPRING
2, 
200., 
*SPRING
3, 
300., 
*SPRING
4, 
400., 
*SPRING
5, 
500., 
*SPRING
6, 
600., 
*STEP,PERTURBATION
*STATIC
*BOUNDARY
1,1,6
2,1,6,1.0E-3
*NODE FILE
 U,
 RF,
*EL FILE
 S,
 E,
*END STEP
*STEP,PERTURBATION
*STATIC
*BOUNDARY,OP=NEW
1,1,6
*CLOAD
2,1,1.0
2,2,1.0
2,3,1.0
2,4,1.0
2,5,1.0
2,6,1.0
*END STEP