*HEADING
Test untrained case for c3d8      
*NODE, Nset=NALL
10,0.,0.,1.
20,1.,0.,1.
120,1.,0.,0.
110,0.,0.,0.
100,0.32,0.186,0.643
202,0.677,0.305,0.683
302,.826,.288,.288
400,.249,.342,.192
102,.165,.745,.702
200,.788,.693,.644
300,.850,.649,.263
402,.273,.750,.230
12,0,1,1
22,1,1,1
320,1,1,0
420,0,1,0                                               
*NSET, NSET=TOP
10,12,20,22
*NSET, NSET=BOT
110, 120, 320, 420
*NSET, NSET=FRONT
10,20,110,120
*NSET, NSET=LEFT
10, 12, 110, 420
*NSET, NSET=BACK
12,22,320,420
*NSET, NSET=RIGHT
20,22,120,320
*ELEMENT,TYPE=C3D8,ELSET=E1   
1,10,20,120,110,100,202,302,400
2,10,100,400,110,12,102,402,420
3,100,202,302,400,102,200,300,402
4,202,20,120,302,200,22,320,300
5,102,200,300,402,12,22,320,420
6,302,120,110,400,300,320,420,402
7,20,202,100,10,22,200,102,12          
*SOLID SECTION,MATERIAL=A1,ELSET=E1                         
*MATERIAL,NAME=A1                                         
*ELASTIC,TYPE=ISOTROPIC                  
 30.0e2,0.3       
*DENSITY
 1200.0 
*density, pore fluid
1000.,                                                             
*POROUS BULK MODULI
 3.7e7, 2.1e9
*INITIAL CONDITIONS,TYPE=PORE PRESSURE
NALL, 0.
*INITIAL CONDITIONS,TYPE=RATIO                                   
NALL,1.                                
*BOUNDARY 
LEFT, 1,1 
BOT,3,3    
FRONT, 2, 2                                               
**
*AMPLITUDE, NAME=BC
0., 0.0, 2.0, 1.0
*STEP    
*DYNAMIC,EXPLICIT, PORE PRESSURE=UNDRAINED              
 , 2. 
*BOUNDARY, TYPE=DISPLACEMENT, AMPLITUDE=BC
TOP, 3, 3, -0.5 
RIGHT, 1, 1, -0.5
BACK,  2, 2, -0.5                                                              
*OUTPUT,FIELD,TIMEMARKS=YES,NUMBER INTERVAL=20
*NODE OUTPUT
 U
*ELEMENT OUTPUT
 POR
*OUTPUT,HISTORY,TIME INTERVAL=0.02
*ENERGY OUTPUT,VARIABLE=ALL
*END STEP