# Sphere Plate — Welcome to LS-DYNA Examples

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Sphere impacting a plate. Exercise to define initial conditions and failure.

## Keywords

```*BOUNDARY_SPC_NODE
*CONSTRAINED_TIED_NODES_FAILURE
*CONTROL_ENERGY
*CONTROL_OUTPUT
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_BINARY_D3THDT
*DATABASE_EXTENT_BINARY
*DATABASE_GLSTAT
*DATABASE_HISTORY_NODE
*DATABASE_MATSUM
*DATABASE_NODOUT
*DATABASE_RBDOUT
*DATABASE_RCFORC
*DATABASE_SLEOUT
*ELEMENT_SHELL
*ELEMENT_SOLID
*END
*KEYWORD
*MAT_PIECEWISE_LINEAR_PLASTICITY
*MAT_RIGID
*NODE
*PART
*SECTION_SHELL
*SECTION_SOLID
*SET_NODE_LIST
*TITLE```

## Reduced Input

```  *KEYWORD
*TITLE
Rigid sphere on top of a plate
\$
\$
\$  * Part 2 - plate
\$      Shells (2.5 mm thick)
\$      Mild steel (with strain rate effect)
\$      Constrained on all four edges
\$
\$  * Part 3 - sphere
\$      Solids
\$      Rigid
\$
\$
\$  John D. Reid  2/2/95, 9/9/96, 2/17/98
\$
\$  Units: mm, kg, ms, kN, GPa, kN-mm
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Control Ouput
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
*CONTROL_TERMINATION
\$   endtim    endcyc     dtmin    endeng    endmas
0.80
\$
*CONTROL_ENERGY
\$     hgen      rwen    slnten     rylen
2         2         2
\$
*CONTROL_OUTPUT
\$    npopt    neecho    nrefup    iaccop     opifs    ipnint    ikedit
1         3
\$
*DATABASE_BINARY_D3PLOT
\$       dt       lcdt
0.1
\$
*DATABASE_EXTENT_BINARY
\$    neiph     neips    maxint    strflg    sigflg    epsflg    rltflg    engflg

\$
\$   cmpflg    ieverp    beamip
1
\$
*DATABASE_BINARY_D3THDT
\$       dt       lcdt
999999
\$
*DATABASE_HISTORY_NODE
\$      id1       id2       id3       id4       id5       id6       id7       id8
2633       362       489
\$
*DATABASE_NODOUT
\$       dt
0.005
\$
*DATABASE_GLSTAT
\$       dt
0.005
\$
*DATABASE_MATSUM
\$       dt
0.005
\$
*DATABASE_RBDOUT
\$       dt
0.005
\$
*DATABASE_RCFORC
\$       dt
0.005
\$
*DATABASE_SLEOUT
\$       dt
0.005
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Parts and Materials
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
\$\$\$ Part    2    shell: plate
\$
\$\$\$ Part    3    solid: sphere
\$
\$
*PART
\$
\$      pid       sid       mid     eosid      hgid      grav    adpopt
plate
2         1         1
\$
sphere
3         2         2
\$
\$
\$\$\$\$  Materials
\$
*MAT_PIECEWISE_LINEAR_PLASTICITY
\$
\$      mid        ro         e        pr      sigy      etan      eppf      tdel
1 0.783E-05     200.0       0.3     0.207               0.750
\$  Cowper/Symonds Strain Rate Parameters
\$        c         p      lcss      lcsr
40         5
\$  Plastic stress/strain curves
0.000     0.080     0.160     0.400     1.000
0.207     0.250     0.275     0.290     0.300
\$
\$
*MAT_RIGID
\$
\$      mid        ro         e        pr         n    couple         m     alias
2 0.783E-05     200.0       0.3
\$
\$      cmo      con1      con2

\$
\$   lco/a1        a2        a3        v1        v2        v3

\$
\$
\$\$\$\$  Sections
\$
*SECTION_SHELL
\$      sid    elform      shrf       nip     propt   qr/irid     icomp
1         2                 3.0
\$       t1        t2        t3        t4      nloc
2.50      2.50      2.50      2.50
\$
*SECTION_SOLID
\$
\$      sid    elform
2
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Boundary and Initial Conditions
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
\$ Nodal single point constraints
\$
*BOUNDARY_SPC_NODE
\$
\$      nid       cid      dofx      dofy      dofz     dofrx     dofry     dofrz
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Nodes and Elements
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$\$\$\$  Define Tied Nodes with Failure Constraints
\$
\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$
\$
\$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
\$
*CONSTRAINED_TIED_NODES_FAILURE
\$     nsid      eppf
101    0.0850
*SET_NODE_LIST
\$      sid
101
775       778       896       897
\$
*END```