Sphere Plate
Sphere impacting a plate. Exercise to define initial conditions and failure. Download is available in the download section of this document.
Keywords
Keywords
This example has been taken from the introductory class of John D. Reid. Example
name: sphere-plate.k
The used Keywords in alphabetical order.
*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
Reduced Input
This example has been taken from the introductory class of John D. Reid. Example
name: sphere-plate.k
*Node and *Element Cards are removed.
*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
Figures
Figures
This example has been taken from the introductory class of John D. Reid. Example
name: sphere-plate.k
Animated Result
Animated Result
This example has been taken from the introductory class of John D. Reid. Example
name: sphere-plate.k
Download
Download
This example has been taken from the introductory class of John D. Reid. Example
name: sphere-plate.k
