*HEADING
  TEST USER ELEMENT ALPHA AND BETA DAMPING FOR DIRECT INTEGRATION 
*NODE, NSET=NALL
1,0.,0.
2,10.,0.
*USER ELEMENT,TYPE=U1,NODES=2,LINEAR
1,2,3
*MATRIX,TYPE=STIFFNESS
 1.E6,
 0.0,  0.0
 0.0,  0.0,  0.0
-1.E6, 0.0,  0.0,  1.E6
 0.0,  0.0,  0.0,  0.0,  
 0.0,
 0.0,  0.0,  0.0,  0.0,  
 0.0,  0.0
*MATRIX,TYPE=MASS
1585.0,
   0.0, 1585.0
   0.0,    0.0, 1585.0
   0.0,    0.0,    0.0, 1585.0
   0.0,    0.0,    0.0,    0.0, 
1585.0,
   0.0,    0.0,    0.0,    0.0,    
   0.0, 1585.0
*ELEMENT,TYPE=U1,ELSET=TRUSS
1,1,2
*UEL PROPERTY,ELSET=TRUSS,ALPHA=1.00472,BETA=1.59248E-3
*STEP
*STATIC
*BOUNDARY
1,1,3
2,2,3
2,1,,1.
*PRINT,RESIDUAL=NO,FREQUENCY=5
*EL PRINT,FREQUENCY=0
*NODE FILE,FREQUENCY=5
U,
*NODE PRINT,FREQUENCY=5,SUMMARY=NO
U1,V1,A1,RF1
*OUTPUT, FIELD, FREQUENCY=999
*NODE OUTPUT, NSET=NALL
U,
*ELEMENT OUTPUT, ELSET=TRUSS
S,E
*OUTPUT, HISTORY, FREQUENCY=5
*NODE OUTPUT, NSET=NALL
U,
*ELEMENT OUTPUT, ELSET=TRUSS
S,E
*END STEP
*STEP,INC=300
*DYNAMIC,ALPHA=0.,DIRECT
.01,2.5
*BOUNDARY,OP=NEW
1,1,3
2,2,3
*END STEP