*HEADING
/Explicit ADAPTIVE MESHING verification (Units: N,m)
Material Testing for Visco-Hyper Elasticity
Two step analysis to test effect of mesh smoothing
*RESTART,WRITE,NUMBER=10
*NODE
1, 0., 0.
5, 4., 0.
21,0., 4.
25,4., 4.
101, 0., 0.,2
105, 4., 0.,2
121,0., 4.,2
125,4., 4.,2
201, 0., 0.,4
205, 4., 0.,4
221,0., 4.,4
225,4., 4.,4
*NGEN, NSET=BOT
1, 5, 1
101,105,1
201,205,1
*NGEN, NSET=TOP
21, 25, 1
121,125,1
221,225,1
*NGEN, NSET=BOT1
1, 5, 1
*NGEN, NSET=BOT2
101,105,1
*NGEN, NSET=BOT3
201,205,1
*NGEN, NSET=TOP1
21, 25, 1
*NGEN, NSET=TOP2
121,125,1
*NGEN, NSET=TOP3
221,225,1
*NGEN,NSET=RIGHT
5,25,5
105,125,5
205,225,5
*NGEN,NSET=LEFT
1,21,5
101,121,5
201,221,5
*NFILL, NSET=NALL
BOT1, TOP1, 4, 5
BOT2, TOP2, 4, 5
BOT3, TOP3, 4, 5
*NODE
7, 1.25, 1.25
9, 3.25, 1.25
17,1.25, 3.25
19,3.25, 3.25
107, 1.25, 1.25, 2.
109, 3.25, 1.25, 2.
117,1.25, 3.25, 2.
119,3.25, 3.25, 2.
207, 1.25, 1.25, 4.
209, 3.25, 1.25, 4.
217,1.25, 3.25, 4.
219,3.25, 3.25, 4.
*NSET, NSET=FRONT,GEN
1,25,1
*NSET, NSET=BACK,GEN
201,225,1
*ELEMENT,TYPE=C3D8R
1,1,2,7,6,101,102,107,106
*ELGEN, ELSET=E3D
1,4,1,1,4,5,4,2,100,16
****************************************
*SECTION CONTROLS,NAME=SECT,HOURGLASS=RELAX STIFFNESS
*SOLID SECTION,MATERIAL=MAT1,ELSET=E3D,CONTROL=SECT
0.12, 
*MATERIAL,NAME=MAT1
*HYPERELASTIC, N=1,MODULI=INSTANTANEOUS
.552E+6,.138E+6,
*VISCOELASTIC, TIME=PRONY
.25,,.5
.50,,1.0
*DENSITY
1068., 
*AMPLITUDE, TIME=TOTAL TIME, NAME=AMP,DEFINITION=SMOOTH STEP
0.0, 0.0, 1.0, 1.0, 4.0, 1.0
*BOUNDARY
TOP, 2, 2, 0.0
LEFT, 1, 1, 0.0
RIGHT,1, 1, 0.0
BACK, 3, 3, 0.0
FRONT, 3, 3, 0.0
BOT, 1, 1, 0.0
*STEP
*DYNAMIC,EXPLICIT,ELEMENT BY ELEMENT
,1.1
*BOUNDARY, TYPE=DISPLACEMENT, AMPLITUDE=AMP
1,2,2,0.
2,2,2,-.10
3,2,2,-.20
4,2,2,-.30
5,2,2,-.40
101,2,2,0.
102,2,2,-.10
103,2,2,-.20
104,2,2,-.30
105,2,2,-.40
201,2,2,0.
202,2,2,-.10
203,2,2,-.20
204,2,2,-.30
205,2,2,-.40
*OUTPUT, FIELD, VAR=PRESELECT, NUM=5
** 
** Output request for qa testing
**
*ELSET,ELSET=QA_TEST
E3D,
*NSET,NSET=QA_TEST
NALL,
*FILE OUTPUT, NUM=1
*NODE FILE
 U,
*EL FILE 
 PEEQ,
*OUTPUT, FIELD, NUMBER INTERVAL=1
*NODE OUTPUT,NSET=QA_TEST
 U,
*ELEMENT OUTPUT,ELSET=QA_TEST
 PEEQ,
*OUTPUT, HISTORY, VAR=PRESELECT, TIME INTERVAL=1.1
*END STEP
*STEP
*DYNAMIC,EXPLICIT,ELEMENT BY ELEMENT
,1.
*ADAPTIVE MESH,ELSET=E3D,FREQUENCY=1,INITIAL MESH SWEEPS=1
*OUTPUT, HISTORY, VAR=PRESELECT, TIME INTERVAL=1.0
*END STEP