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# Reduced Input

*Node and *Element Cards are removed.
```  *KEYWORD
*TITLE
Two Spotwelded Plates Pulled Apart with a Specified Velocity
\$
\$  LSTC Example
\$
\$
\$  Model initially changed from old lstc example to partially reflect paper
\$  by Matzenmiller, et al (ls-dyna conf 9/94) -  Major differences include the
\$
\$
\$  Units: mm, kg, ms, kN, GPa, kN-mm
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Control Ouput
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
*CONTROL_TERMINATION
\$   endtim    endcyc     dtmin    endneg    endmas
8.00
\$
*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
1
\$
\$
*DATABASE_BINARY_D3PLOT
\$       dt      lcdt
0.2
\$
*DATABASE_BINARY_D3THDT
\$       dt      lcdt
99999
\$
*DATABASE_GLSTAT
\$       dt
0.010
\$
*DATABASE_MATSUM
\$       dt
0.010
\$
*DATABASE_NODFOR
\$       dt
0.010
\$
*DATABASE_NODAL_FORCE_GROUP
\$     nsid       cid
201
\$
*SET_NODE_LIST
\$      sid
201
\$     nid1      nid2      nid3      nid4      nid5      nid6      nid7      nid8
213       123
\$
*DATABASE_NODOUT
\$       dt
0.010
\$
*DATABASE_HISTORY_NODE
\$      id1       id2       id3       id4       id5       id6       id7       id8
123       233
\$
*DATABASE_SECFORC
\$       dt
0.010
\$
*DATABASE_SWFORC
\$       dt
0.010
\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Constrain the Plates Together
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$  Three spotwelds across the plate, with failure defined.
\$
*CONSTRAINED_SPOTWELD
\$       n1        n2        sn        sf         n         m
212       122     7.854     4.534       2.0       2.0
213       123     7.854     4.534       2.0       2.0
214       124     7.854     4.534       2.0       2.0
\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Boundary Motion Conditions
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$  Prescribe the velocity of the nodes on one end of the plate.
\$
*BOUNDARY_PRESCRIBED_MOTION_SET
\$      nid       dof       vad      lcid        sf       vid
1         1         0         1       1.0         0
\$
*DEFINE_CURVE
\$     lcid      sidr      scla      sclo      offa      offo
1
\$           abscissa            ordinate
0.0000                 0.0
10.0000              0.3048
20.0000              0.3048
\$
*SET_NODE_LIST
\$      sid
1
\$     nid1      nid2      nid3      nid4      nid5      nid6      nid7      nid8
231       232       233       234       235
\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Contacts
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
*CONTACT_AUTOMATIC_SINGLE_SURFACE
\$     ssid      msid     sstyp     mstyp    sboxid    mboxid       spr       mpr
0
\$       fs        fd        dc        vc       vdc    penchk        bt        dt

\$      sfs       sfm       sst       mst      sfst      sfmt       fsf       vsf

\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Parts and Materials
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
*PART
\$      pid       sid       mid     eosid      hgid    adpopt
plate_1
1         1         1
plate_2
2         1         1
\$
\$
*MAT_PLASTIC_KINEMATIC
\$      mid        ro         e        pr      sigy      etan      beta
1   2.70e-6      68.9     0.330     0.286   0.00689
\$      src       srp        fs

\$
\$\$\$\$  Element formulation 6 (S/R Hughes-Liu) is used to prevent hourglassing.
\$
*SECTION_SHELL
\$      sid    elform      shrf       nip     propt   qr/irid     icomp
1         6                   3
\$       t1        t2        t3        t4      nloc
2.0       2.0       2.0       2.0
\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Cross Sections
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$  Two cross sections defined - one through each plate.  Two different
\$    methods for defining the cross sections are used.
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
\$\$\$  cross section through plate 1
\$
*DATABASE_CROSS_SECTION_PLANE
\$     psid       xct       yct       zct       xch       ych       zch
0      30.0       0.0       0.0      31.0       0.0       0.0
\$     xhev      yhev      xhev      lenl      lenm
30.0       1.0       0.0
\$
\$\$\$  cross section through plate 2
\$
*DATABASE_CROSS_SECTION_SET
\$     nsid      hsid      bsid      ssid      tsid      dsid
4                             2
\$
*SET_NODE_LIST
\$      sid       da1       da2       da3       da4
4
\$     nid1      nid2      nid3      nid4      nid5      nid6      nid7      nid8
226       227       228       229       230
\$
*SET_SHELL_LIST
\$      sid       da1       da2       da3       da4
2
\$     eid1      eid2      eid3      eid4      eid5      eid6      eid7      eid8
221       222       223       224
\$
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Nodes and Elements
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$
*END```