*HEADING
: SURFACE-BASED PRESSURE PENETRATION TEST 
WITH RIGID SURFACE, SAX2
*RESTART,WRITE, FREQ=1
*NODE
1,1.0,12.0
2,1.0,10.5
3,1.0,9.0
4,1.0,7.5
5,1.0,6.0
6,1.0,4.5
7,1.0,3.0
8,1.0,1.5
9,1.0,0
19,1.0,14.0
20,1.0,12.0
21,1.0,10.0
22,1.0,8.0
23,1.0,6.0
24,1.0,4.0
25,1.0,2.0
26,1.0,0
27,1.0,-2.0
31,1.0,11.25
32,1.0,9.75
33,1.0,8.25
34,1.0,6.75
35,1.0,5.25
36,1.0,3.75
37,1.0,2.25
38,1.0,0.75
100,1.0,6.0
*nset,nset=print
100
*NSET,NSET=NALL
1,2,3,4,5,6,7,8,9,
31,32,33,34,35,36,37,38
*ELEMENT,TYPE=SAX2,ELSET=BOT
1,1,31,2
2,2,32,3
3,4,33,3
4,5,34,4
5,5,35,6
6,6,36,7
7,8,37,7
8,9,38,8
*ELEMENT,TYPE=SAX1,ELSET=TOP
10,19,20
11,20,21
12,21,22
13,22,23
14,23,24
15,24,25
16,25,26
17,26,27
*NSET,NSET=TOP
1,2,3,4,5,6,7,8,9
*RIGID BODY,ELSET=TOP,REF NODE=100
1.0, 
*SHELL SECTION,ELSET=TOP,MATERIAL=MAT
1.0,3
*SHELL GENERAL SECTION,ELSET=BOT,MATERIAL=MAT
1.0, 
*MATERIAL,NAME=MAT
*ELASTIC
1.E5,0.3
*DENSITY
1.0E-3, 
*surface,NAME=TOPSURFTIE
TOP,SPOS
*surface,NAME=BOTSURFTIE
1,SNEG
2,SNEG
3,SPOS
4,SPOS
5,SNEG
6,SNEG
7,SPOS
8,SPOS
*SURFACE INTERACTION,NAME=ISLS
1.0, 
*FRICTION
0., 
*CONTACT PAIR,INTERACTION=ISLS, SMALL SLIDING,NOTHICK
BOTSURFTIE,TOPSURFTIE
*BOUNDARY
100,1,2
100,6,6
NALL,2,2
*STEP,INC=20
*STATIC
0.1,1
*DLOAD
1,P,-600
2,P,-800
3,P,1000
4,P,1200
5,P,-1200
6,P,-1000
7,P,800
8,P,600
*NODE PRINT,NSET=TOP
U,
*NODE PRINT,NSET=PRINT
RF  
*OUTPUT,FIELD
*CONTACT OUTPUT,VARIABLE=PRESELECT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
CSTRESS,
*CONTACT PRINT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
CSTRESS,
*ENDSTEP
*STEP, INC=20
*STATIC
0.01,1
*PRESSURE PENETRATION,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
1,19,800
9,27,800
*CONTACT PRINT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE,TOTAL=YES,FREQ=1
CSTRESS,PPRESS,CDISP
*OUTPUT,FIELD,FREQ=1
*CONTACT OUTPUT,VARIABLE=PRESELECT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
CSTRESS,PPRESS,CDISP
*PRINT,CONTACT=YES
*ENDSTEP
*STEP, INC=20
*STATIC
0.01,1
*PRESSURE PENETRATION,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
1,19,900
9,27,900
*CONTACT PRINT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE,TOTAL=YES,FREQ=1
CSTRESS,PPRESS,CDISP
*OUTPUT,FIELD,FREQ=1
*CONTACT OUTPUT,VARIABLE=PRESELECT,SLAVE=BOTSURFTIE,MASTER=TOPSURFTIE
CSTRESS,PPRESS,CDISP
*PRINT,CONTACT=YES
*ENDSTEP