*HEADING
-- PRIMARY-SECONDARY CREEP

*NODE
 1,0.,0,
3,100.,0.
7,0.,20.
9,100.,20.

*NGEN,NSET=LEFT
1,7,3

*NGEN,NSET=RIGHT
3,9,3

*NFILL,NSET=ALL
LEFT,RIGHT,2,1

**

** ELEMENT DEFINITION
**

*ELEMENT,TYPE=CPS8R,ELSET=CREEP

1,1,3,9,7,2,6,8,4

*SOLID SECTION,ELSET=CREEP,MATERIAL=PLASTIC
*MATERIAL,NAME=PASTIC
*VISCOELASTIC, TIME=PRONY
0.2,0.5,.1
0.1,0.2,.2

*CREEP,LAW=USER

**

**--------------------------------------------
**

*BOUNDARY

LEFT,1,1

4,2,2

**

**

**

*STEP
 PRESCRIBED TENSILE STRESS

*STATIC
1.E-7,1.E-6

*DLOAD
1,P2,-96.6.

*EL PRINT,FREQ=10,SUMMARY=NO

S,SINV

*NODE PRINT,FREQ=10,SUMMARY=NO

U,COORD

*END STEP

*STEP,INC=500
 
CREEP STEP

*VISCO,CETOL=1.E-1,CREEP=EXPLICIT

1.E-2,552.,1.E-7

*EL PRINT

CE,S
CENER, 

*NODE PRINT,FREQ=10,SUMMARY=NO

U, 

*END STEP

**----------------

*STEP
 
PRESTCRIBED TENSILE STREES

*STATIC
1.E-7,1.E-6

*DLOAD
1,P2,-193.2

*EL PRINT,SUMMARY=NO

S,SINV

*NODE PRINT,SUMMARY=NO 

U,COORD

*END STEP

**

**------------------ CREEP STEP

*STEP,INC=700
 
CREEP STEP2

*VISCO,CETOL=1.E-1,CREEP=EXPLICIT

1.E-2,552.,1.E-7

*EL PRINT

CE,S
CENER, 

*NODE PRINT 

U,COORD

*END STEP