*HEADING
Analysis of the forming of a channel
SI units (N, kg, m, s)
**
** Nodal coordinates for blank
**
*NODE
  1, 0.,  0.
101, 0.1, 0.
405, 0.,  0.001
505, 0.1, 0.001
*NGEN, NSET=BOT
1,101,1
*NGEN, NSET=TOP
405,505,1
*NFILL, NSET=BLANK
BOT,TOP,4,101
**
** Element connectivity for blank
**
*ELEMENT, TYPE=CPE4R
1, 1,2,103,102
*ELGEN, ELSET=BLANK
1, 100,1,1,4,101,100
** 
** Node and element sets
**
*NSET, NSET=CENTER
1,102,203,304,405
*NSET, NSET=MIDRIGHT
303,
*NSET, NSET=MIDLEFT
203,
*ELSET, ELSET=BLANK_B, GENERATE
1,100,1
*ELSET, ELSET=BLANK_T, GENERATE
301,400,1
**
** Nodal coordinates and rigid body reference node for die
**
*NODE, NSET=REFDIE
9000, 0.1, -0.06
*SURFACE, TYPE=SEGMENTS, NAME=DIE, FILLET RADIUS=0.001
START,0.051,-0.060
LINE, 0.051,-0.005
CIRCL,0.056,0.,0.056,-0.005
LINE, 0.11, 0.
*RIGID BODY, ANALYTICAL SURFACE=DIE, REF NODE=9000
**
** Rigid blankholder
**
*NODE, NSET=REFHOLD
8000, 0.1,0.06
*SURFACE, TYPE=SEGMENTS, NAME=HOLDER, FILLET RADIUS=0.001
START,0.110, 0.001
LINE, 0.056,0.001
CIRCL,0.051,0.006, 0.056,0.006
LINE, 0.051,0.060
*RIGID BODY, ANALYTICAL SURFACE=HOLDER, REF NODE=8000
**
** Rigid punch
**
*NODE, NSET=REFPUNCH
7000, 0.000, 0.060
*SURFACE, TYPE=SEGMENTS, NAME=PUNCH, FILLET RADIUS=0.001
START,0.050, 0.060
LINE, 0.050, 0.006
CIRCL,0.045, 0.001, 0.045,0.006
LINE,-0.010, 0.001
*RIGID BODY, ANALYTICAL SURFACE=PUNCH, REF NODE=7000
**
*NSET,NSET=NOUT
REFDIE, REFHOLD, REFPUNCH
**
** Physical and material properties
**
*ORIENTATION, NAME=LOCAL
1.,0.,0., 0.,1.,0.
1, 0
*SOLID SECTION, MATERIAL=STEEL, ORIENTATION=LOCAL, ELSET=BLANK, CONTROL=EC-1
*SECTION CONTROLS, NAME=EC-1, HOURGLASS=ENHANCED
*MATERIAL, NAME=STEEL
*ELASTIC
2.1E11,0.3
*PLASTIC
400.E6, 0.0E-2
420.E6, 2.0E-2
500.E6,20.0E-2
600.E6,50.0E-2
**
** Contact definition
**
*SURFACE, NAME=BLANK_B
BLANK_B, S1
*SURFACE, NAME=BLANK_T
BLANK_T, S3
*CONTACT PAIR, INTERACTION=FRIC, TYPE=SURFACE TO SURFACE
BLANK_B, DIE
BLANK_T, HOLDER
*CONTACT PAIR, INTERACTION=NOFRIC, TYPE=SURFACE TO SURFACE
BLANK_T, PUNCH
*SURFACE INTERACTION, NAME=FRIC
*FRICTION
0.1, 
*SURFACE INTERACTION, NAME=NOFRIC
**
** Step 1
**
*STEP, NLGEOM=YES
Apply holder force
*STATIC
0.05, 1.0
*BOUNDARY
CENTER  , XSYMM
REFDIE  , 1, 6
REFPUNCH, 1, 6
REFHOLD , 1, 1
REFHOLD , 6, 6
*CLOAD
REFHOLD, 2, -4.4E5
*OUTPUT, FIELD, FREQ=20
*NODE OUTPUT
CF, RF, U
*ELEMENT OUTPUT, DIRECTIONS=YES
LE, PE, PEEQ, PEMAG, S
*CONTACT OUTPUT
CSTRESS, 
*OUTPUT, HISTORY, VARIABLE=PRESELECT, FREQ=1
*NODE OUTPUT, NSET=REFPUNCH
 RF2, U2
*END STEP
**
** Step 2
**
*STEP, NLGEOM=YES, INC=1000
Apply punch stroke
*STATIC
.05, 1.0
*CONTACT CONTROLS, MASTER=PUNCH, SLAVE=BLANK_T, STABILIZE=0.001
*BOUNDARY
REFPUNCH, 2, 2, -0.030
*END STEP