*HEADING
CONCRETE, UNIAXIAL TENSION TEST, C3D8
WITH MULTIPLE LOAD CASES
*NODE,NSET=ALLN
1,0.,0.,0.
2,1.,0.,0.
3,1.,1.,0.
4,0.,1.,0.
5,0.,0.,1.
6,1.,0.,1.
7,1.,1.,1.
8,0.,1.,1.
*ELEMENT,TYPE=C3D8,ELSET=ALLE
1,1,2,3,4,5,6,7,8
*SOLID SECTION,ELSET=ALLE,MATERIAL=ALLE
*MATERIAL,NAME=ALLE
*ELASTIC
4.65E6,.18
*CONCRETE
1300.,0.
2200.,.000027
3000.,.0001
3600.,.000225
4450.,.00055
4650.,.001
4200.,.002
2000.,.0035
*FAILURE RATIOS
1.18,.1,1.25,.2
*TENSION STIFFENING
1.,0.
0.,5.E-4
*STEP,INC=10
STEP 1 - NONLINEAR
*STATIC,DIRECT
1.,10.
*BOUNDARY
1,PINNED
2,2
5,2
6,2
4,1
5,1
8,1
2,3
3,3
4,3
7,3,,.0004
5,3,,.0004
6,3,,.0004
8,3,,.0004
*EL PRINT
S, 
SINV, 
E, 
PE, 
EE, 
CRACK, 
CONF, 
*NODE PRINT
U, 
RF, 
*OUTPUT,FIELD,FREQ=10
*ELEMENT OUTPUT
S,E,PE
*END STEP
*STEP,INC=1,PERTURBATION
STEP 2 - LINEAR PERTURBATION
*STATIC,DIRECT
.1,.1
*BOUNDARY
1,PINNED
2,2
5,2
6,2
4,1
5,1
8,1
2,3
3,3
4,3
7,3,,.00004
5,3,,.00004
6,3,,.00004
8,3,,.00004
*EL PRINT
S, 
SINV, 
E, 
*NODE PRINT
U, 
RF, 
*OUTPUT,FIELD,FREQ=10
*ELEMENT OUTPUT
S,E
*END STEP
*STEP,INC=10
STEP 3 - REST OF NONLINEAR
*STATIC,DIRECT
1.,10.
*BOUNDARY
7,3,,.0008
5,3,,.0008
6,3,,.0008
8,3,,.0008
*END STEP
*STEP,INC=1,PERTURBATION
STEP 4 -multiple load cases
*STATIC,DIRECT
.1,.1
*LOAD CASE,NAME=TENSION
*BOUNDARY
1,PINNED
2,2
5,2
6,2
4,1
5,1
8,1
2,3
3,3
4,3
7,3,,.00008
5,3,,.00008
6,3,,.00008
8,3,,.00008
*END LOAD CASE
*LOAD CASE,NAME=COMPRESSION
*BOUNDARY
1,PINNED
2,2
5,2
6,2
4,1
5,1
8,1
2,3
3,3
4,3
7,3,,-.00008
5,3,,-.00008
6,3,,-.00008
8,3,,-.00008
*END LOAD CASE
*EL PRINT
S, 
SINV, 
E, 
*NODE PRINT
U, 
RF, 
*OUTPUT,FIELD,FREQ=10
*ELEMENT OUTPUT
S,E
*END STEP