*HEADING
BEAM WITH RECT CROSS SECTION LOADED AXIALLY
*PREPRINT
*NODE,NSET=NALL
1,-10.,0.
2, 10.,0.
21,-10.,0.
22, 10.,0.
23,  0.,0.
*ELEMENT,TYPE=B21,ELSET=EL
1,1,2
*ELEMENT,TYPE=B22,ELSET=EL2
21,21,23,22
*ELSET, ELSET=EALL
EL, EL2
*BEAM SECTION, MATERIAL=ELASTIC,SECTION=RECT,ELSET=EL
1.5,1.0
*BEAM SECTION, MATERIAL=ELASTIC,SECTION=RECT,ELSET=EL2
1.5,1.0
*MATERIAL, NAME=ELASTIC
*ELASTIC,TYPE=ISOTROPIC
2.0E11,0.3
*DENSITY
7.8E3, 
*AMPLITUDE,NAME=SMOOTH,DEFINITION=SMOOTH STEP
0.0,0.0,0.2,1.0
*NSET, NSET=QA_TEST_ALLNODES
NALL, 
*STEP
*DYNAMIC,EXPLICIT,FIXED
 ,0.2
*BULK VISCOSITY
0., 
*BOUNDARY,AMPLITUDE=SMOOTH
 1,1,1,-0.01
 2,1,1, 0.01
 21,1,1,-0.01
 22,1,1, 0.01
 NALL,2,2
 NALL,6,6
*MONITOR,DOF=1,NODE=21
*OUTPUT,HISTORY,FREQ=9999
*NODE OUTPUT,NSET=NALL
U,
***ELEMENT OUTPUT,ELSET=EALL
**SE,SF,ERV
*ENERGY OUTPUT
ALLIE,ALLWK,ALLVD,ETOTAL,ALLKE
*FILE OUTPUT, NUMBER=4,TIMEMARKS=YES
*NODE FILE
U,
*ENERGY FILE
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_ALLNODES
U,
*OUTPUT,HISTORY,TIME INTERVAL=0.2
*ENERGY OUTPUT, VAR=ALL
*END STEP
*STEP
*DYNAMIC,EXPLICIT,FIXED
 ,0.1
*BOUNDARY,OP=NEW
 NALL,2,2
 NALL,6,6
*MONITOR,DOF=1,NODE=1
*END STEP
*STEP
*DYNAMIC,EXPLICIT,FIXED
 ,0.2
**
** Return BULK VISCOSITY to default value
**
*BULK VISCOSITY
 0.06, 
*MONITOR,DOF=1,NODE=1
*END STEP