*HEADING
 2D beam general section test for linear elastic material property
 with axial loading
*NODE, NSET=NALL
1,-10.,0.
2, 10.,0.
21,-10.,0.
22, 10.,0.
23,  0.,0.
*ELEMENT, TYPE=B21, ELSET=EALL
1, 1, 2
*ELEMENT, TYPE=B22, ELSET=EALL
***ELEMENT, TYPE=B22, ELSET=EALL2
21, 21, 23, 22
*BEAM GENERAL SECTION, SECTION=GENERAL, ELSET=EALL, DENSITY=7800.0, POISSON=0.3
 0.25,1.5, 0.0, 1.5, 0.010416667
 0.0, 0.0, -1.0
3.E6, 1.1538E6, .001
*SECTION POINTS
0.0, 0.0, 0.005, 0.01
***BEAM GENERAL SECTION, SECTION=GENERAL, ELSET=EALL2, DENSITY=7800.0, POISSON=0.3
** 0.25,1.5, 0.0, 1.5, 0.010416667
** 0.0, 0.0, -1.0
**3.E6, 1.1538E6, .001
***SECTION POINTS
**0.0, 0.0, 0.005, 0.01
*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
*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,FIELD,VARIABLE=PRESELECT
*OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.05
*END STEP
*STEP
*DYNAMIC,EXPLICIT,FIXED
 ,0.1
*BOUNDARY,OP=NEW
 NALL,2,2
 NALL,6,6
*MONITOR,DOF=1,NODE=21
*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,FIELD,VARIABLE=PRESELECT
*OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.025
*END STEP
*STEP
*DYNAMIC,EXPLICIT,FIXED
 ,0.2
**
** Return BULK VISCOSITY to default value
**
*BULK VISCOSITY
 0.06, 
*MONITOR,DOF=1,NODE=21
*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,FIELD,VARIABLE=PRESELECT
*OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.05
*END STEP