*HEADING
:  Rigid body rotation about end point for 2-D beam.
*NODE,NSET=NALL
1,0.,0.
2,1.,0.
21,0.,0.
22,1.,0.
23,.5,0.
*ELEMENT,TYPE=B21,ELSET=EALL
1,1,2
*ELEMENT,TYPE=B22,ELSET=EALL2
21,21, 23, 22
*ELSET, ELSET=EALL_ALL
EALL, EALL2
*BEAM SECTION,SECTION=CIRC,MATERIAL=STEEL,ELSET=EALL,POISSON=.3
.02, 
*BEAM SECTION,SECTION=CIRC,MATERIAL=STEEL,ELSET=EALL2,POISSON=.3
.02, 
*MATERIAL,NAME=STEEL
*ELASTIC
2.1E7,.3
*DENSITY
7800., 
*BOUNDARY
1,1,3
21,1,3
*INITIAL CONDITIONS,TYPE=VELOCITY
NALL,6,5.188745
2,2,5.188745
22,2,5.188745
23,2,2.5943725
*INITIAL CONDITIONS,TYPE=STRESS
1,1.0524E5
21,1.0524E5
*NSET, NSET=QA_TEST_ALLNODES
NALL, 
*STEP
*DYNAMIC,EXPLICIT
,6.0545
*BULK VISCOSITY
0.,0.
*RESTART,WRITE,NUMBER INTERVAL=1
***OUTPUT,HISTORY,TIME INTERVAL=0.0
***ELEMENT OUTPUT,ELSET=EALL_ALL
**SE,S11
***NODE OUTPUT,NSET=NALL
**U,V
***ENERGY OUTPUT
**ALLKE,ALLSE,ETOTAL
*END STEP
*STEP
*DYNAMIC,EXPLICIT
,6.0545
*BULK VISCOSITY
0.06,1.2
*OUTPUT,HISTORY,FREQ=9999
***ELEMENT OUTPUT,ELSET=EALL_ALL
**SE,S11
*NODE OUTPUT,NSET=NALL
U,
*ENERGY OUTPUT
ALLKE,ALLSE,ETOTAL
*FILE OUTPUT,NUMBER=4, TIMEMARKS=YES
*NODE FILE
U,
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_ALLNODES
U,
*OUTPUT,HISTORY,TIME INTERVAL=6.0545
*ENERGY OUTPUT, VAR=ALL
*END STEP