*HEADING
 VISCOELASTIC ROD SUBJECTED TO CONSTANT AXIAL LOAD - CPS4
 UNITS: PSI, IN.
*NODE
1,
2,0.5
9,0.,10.
10,0.5,10.
*NSET,NSET=BOT
1,2
*NSET,NSET=CENT
1,9
*ELEMENT,TYPE=CPS4,ELSET=SOLID
1,1,2,10,9
*SOLID SECTION,ELSET=SOLID,MATERIAL=VISCO
*MATERIAL,NAME=VISCO
*ELASTIC,MODULI=INSTANTANEOUS
10000.,0.4833
*VISCOELASTIC,TIME=PRONY
0.901001112,0.0,0.99
*BOUNDARY
BOT,2
CENT,1
*STEP
*VISCO
1.0E-3,1.E-3
*DLOAD
1,P3,-100.
*NODE PRINT
U, 
*EL FILE
S,E
*EL PRINT
S, 
E, 
EE, 
*END STEP
*STEP,INC=50
*VISCO,CETOL=5.E-3
1.,50.
*NODE PRINT,FREQUENCY=0
*EL PRINT,FREQUENCY=10
S, 
E, 
CE, 
EE, 
*EL FILE,FREQUENCY=2
S,E,CE
*END STEP