*HEADING
CLAY PLASTICITY, HYDROSTATIC COMPRESSION TEST, C3D8
WITH STATIC LINEAR PERTURBATIONS
*NODE,NSET=ALLN
*ELEMENT,TYPE=C3D8,ELSET=ALLE
*SOLID SECTION,ELSET=ALLE,MATERIAL=ALLE
*MATERIAL,NAME=ALLE
*POROUS ELASTIC
*CLAY PLASTICITY
*INITIAL CONDITIONS,TYPE=RATIO
ALLN,1.08
*INITIAL CONDITIONS,TYPE=STRESS
ALLE,-1.,-1.,-1.
*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
*EL PRINT
S,
SINV,
E,
PE,
EE,
*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
*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
7,1,3,-.1
2,1,,-.1
3,1,,-.1
6,1,,-.1
3,2,,-.1
4,2,,-.1
8,2,,-.1
5,3,,-.1
*END STEP
*STEP,INC=1,PERTURBATION
STEP 4 - 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
*EL PRINT
S,
SINV,
E,
*NODE PRINT
U,
RF,
*OUTPUT,FIELD,FREQ=10
*ELEMENT OUTPUT
S,E
*END STEP