*HEADING
TEST CHAIN ATTACHED TO THE BEAM FOR 3D [DRAG3D]
*RESTART,WRITE
*NODE
1,100,0.0,10.0
2,0.0,0.0,10.0
9999, 0.,0.0,0.0
*ELEMENT,TYPE=B33H,ELSET=PIPE
1,1,2
*ELEMENT,TYPE=DRAG3D, ELSET=CHAIN
101,1,9999
*RIGID SURFACE, ELSET=CHAIN, TYPE=CYLINDER
-1000, -1000, 0, 0, -1000, 0
-1000,1000,0
START, -10
LINE, 10000
*BEAM GENERAL SECTION,SECTION=PIPE,ELSET=PIPE
.375,.025
0,0,1.0
4.32E9, 1.6615385E9
*DRAG CHAIN,ELSET=CHAIN
131.0,0.3,4
*BOUNDARY
2,1,6
9999,1,6
*STEP,NLGEOM,INC=100
*STATIC
0.05,1.0 ,1E-7,
*CLOAD
1,2,1000
*EL PRINT,ELSET=CHAIN
S,
*NODE PRINT
U,
RF, 
*END STEP