Reduced Input
*Node and *Element Cards are removed.
*KEYWORD
*TITLE
deep drawing - blankholder contact damping , mesh refinement
$
$ LSTC Example
$
$ Last Modified: October 14, 1997
$
$ - adaptive meshing
$
$ - the binder pushes down on the blank against the die using a *LOAD_RIGID
$ for the boundary edge condition
$
$ - the punch is moved down onto the blank with a
$ *BOUNDARY_PRESCRIBED_MOTION_RIGID
$
$ - global damping and contact damping
$
$ - time step is controlled with mass scaling
$
$ - there are a lot of constrained nodes defined in *NODE (tc,rc)
$
$
$ Units: gm, cm, micro-s, 1e7N, Mbar, 1e7N-cm
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Control Ouput
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTROL_TERMINATION
$ endtim endcyc dtmin endneg endmas
700.0
$
*CONTROL_CONTACT
$ slsfac rwpnal islchk shlthk penopt thkchg orien
.01 0. 2 1
$ usrstr usrfrc nsbcs interm xpene ssthk ecdt tiedprj
$
*CONTROL_ENERGY
$ hgen rwen slnten rylen
2 2 2
$
*CONTROL_OUTPUT
$ npopt neecho nrefup iaccop opifs ipnint ikedit
1 3
$
*CONTROL_SHELL
$ wrpang itrist irnxx istupd theory bwc miter
20.0 1 0 1
$
*CONTROL_TIMESTEP
$ dtinit scft isdo tslimt dtms lctm erode ms1st
0. 0. 0 0. -0.25 0 0
$
$
*DATABASE_BINARY_D3PLOT
$ dt lcdt
40.0
$
*DATABASE_GLSTAT
$ dt
1.0
$
*DATABASE_MATSUM
$ dt
1.0
$
*DATABASE_RBDOUT
$ dt
5.0
$
*DATABASE_RCFORC
$ dt
1.0
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Adaptivity
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTROL_ADAPTIVE
$ adpfreq adptol adpopt maxlvl tbirth tdeath lcadp ioflag
5.0e+0 0.1 2 2 0.0 0.0 0
$
$
*DAMPING_GLOBAL
$ lcid valdmp
3
$
*DEFINE_CURVE
$ lcid sidr scla sclo offa offo
3
$ abscissa ordinate
0.000E+00 0.000E+00
1.000E+04 0.000E+00
1.001E+04 3.000E+03
2.000E+04 3.000E+03
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Loading and Boundary Conditions
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*BOUNDARY_PRESCRIBED_MOTION_RIGID
$ pid dof vad lcid sf vid death
1 2 0 1 -1.
$
*DEFINE_CURVE
$ lcid sidr scla sclo offa offo
1
$ abscissa ordinate
0.000E+00 0.000E+00
1.000E+02 2.912E-03
2.000E+02 5.540E-03
3.000E+02 7.625E-03
4.000E+02 8.963E-03
5.000E+02 9.425E-03
6.000E+02 8.963E-03
7.000E+02 7.625E-03
8.000E+02 5.540E-03
9.000E+02 2.912E-03
1.000E+03 0.000E+00
$
$ From a sheet metal forming example. A blank is hit by a punch, a binder is
$ used to hold the blank on its sides. The rigid holder (part 2) is held
$ against the blank using a load applied to the cg of the holder.
$
$ The direction of the load is in the y-direction (dof=2) but is scaled
$ by sf = -1 so that the load is in the correct direction. The load
$ is defined by load curve 2.
$
$
*LOAD_RIGID_BODY
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$ pid dof lcid sf cid m1 m2 m3
2 2 2 -1.0
$
*DEFINE_CURVE
$ lcid sidr scla sclo offa offo
2
$ abscissa ordinate
0.000E+00 8.000E-05
1.000E+04 8.000E-05
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Parts and Materials
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*PART
$ pid sid mid eosid hgid grav adpopt
punch
1 1 2 0 0 0 0
binder
2 1 2 0 0 0 0
blank
3 1 1 0 0 0 1
die
4 1 2 0 0 0 0
$
$
*MAT_PLASTIC_KINEMATIC
$ mid ro e pr sigy etan beta
1 2.700E+00 0.690E+00 3.000E-01 8.180E-04 0.010E+00 1.000E+00 0.000E+00
$ src srp fs
0.000E+00 0.000E+00
$
$
*MAT_RIGID
$ mid ro e pr n couple m alias
2 8.450E-00 0.690E+00 3.000E-01 0.000E+00 0.000E+00 0.000E+00 0.000E+00
$ cmo con1 con2
0.000E+00 0.000E+00
$ lco/a1 a2 a3 v1 v2 v3
$
$
*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
1 2 1. 5. 0. 0. 0
$ t1 t2 t3 t4 nloc
.100 .100 .100 .100
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Contacts - sliding interface definitions
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
$$$$$ contact between blank (slaves) and punch (master)
$
*CONTACT_ONE_WAY_SURFACE_TO_SURFACE
$ ssid msid sstyp mstyp sboxid mboxid spr mpr
3 1 2 2 0 0 0 0
$
$ fs fd dc vc vdc penchk bt dt
.2 .2 0 0 20. 0 0 0
$
$ sfs sfm sst mst sfst sfmt fsf vsf
0 0 0 0 0 0 0 0
$
$
$$$$$ contact between blank (slaves) and binder (master)
$
*CONTACT_ONE_WAY_SURFACE_TO_SURFACE
3 2 2 2 0 0 0 0
.2 .2 0 0 20. 0 0 0
0 0 0 0 0 0 0 0
$
$
$$$$$ contact between blank (slaves) and die (master)
$
*CONTACT_ONE_WAY_SURFACE_TO_SURFACE
3 4 2 2 0 0 0 0
.2 .2 0 0 20. 0 0 0
0 0 0 0 0 0 0 0
$
$
*SET_PART
$ sid
3
$ pid
3
$
*SET_PART
1
1
$
*SET_PART
2
2
$
*SET_PART
4
4
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Nodes and Elements
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
$
*END