Symtube
A quarter of a symmetric short crush tube is impacted by a moving wall. Corner elements are removed on desired initial crush area. For symmetry constraints *BOUNDARY_SPC_NODE command is used. 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: symtube.k
The used Keywords in alphabetical order.
*BOUNDARY_SPC_NODE *CONTACT_AUTOMATIC_SINGLE_SURFACE *CONTROL_ENERGY *CONTROL_TERMINATION *DATABASE_BINARY_D3PLOT *DATABASE_BINARY_D3THDT *DATABASE_EXTENT_BINARY *DATABASE_GLSTAT *DATABASE_HISTORY_NODE *DATABASE_MATSUM *DATABASE_NODOUT *DATABASE_RWFORC *DATABASE_SLEOUT *ELEMENT_SHELL *END *KEYWORD *MAT_PIECEWISE_LINEAR_PLASTICITY *NODE *PART *RIGIDWALL_PLANAR_MOVING_FORCES *SECTION_SHELL *TITLE
Reduced Input
Reduced Input
This example has been taken from the introductory class of John D. Reid. Example name: symtube.k
*Node and *Element Cards are removed.
*KEYWORD
*TITLE
Symmetric Short Crush Tube Impacted by a Moving Wall
$
$ Symmetric model - 1/4 of the tube
$ - Remove corner elements on desired initial crush area (2 shells)
$ shells commented out: 409, 410
$
$
$ J.D. Reid 1/31/00
$
$ Units: mm, kg, ms, kN, GPa, kN-mm
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Control Ouput
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTROL_TERMINATION
$ endtim endcyc dtmin endneg endmas
15.0
$
*CONTROL_ENERGY
$ hgen rwen slnten rylen
2 2 2
$
$
*DATABASE_BINARY_D3PLOT
$ dt
1.0
$
$$$ store each state output in its own d3plot file (ieverp = 1)
$
*DATABASE_EXTENT_BINARY
$ neiph neips maxint strflg sigflg epsflg rltflg engflg
$ cmpflg ieverp beamip
1
$
*DATABASE_BINARY_D3THDT
$ dt
999999
$
*DATABASE_GLSTAT
$ dt
0.1
*DATABASE_MATSUM
$ dt
0.1
$
*DATABASE_NODOUT
$ dt
0.1
$
*DATABASE_HISTORY_NODE
$ id1 id2 id3 id4 id5 id6 id7 id8
99999 414 486
$
*DATABASE_RWFORC
$ dt
0.1
$
*DATABASE_SLEOUT
$ dt
0.1
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Contacts - Sliding Interfaces
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTACT_AUTOMATIC_SINGLE_SURFACE
$ ssid msid sstyp mstyp sboxid mboxid spr mpr
0
$ Equating ssid to zero means that all segments are included in the contact
$
$ fs fd dc vc vdc penchk bt dt
0.08 0.08
$
$ sfs sfm sst mst sfst sfmt fsf vsf
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Stone Walls
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*RIGIDWALL_PLANAR_MOVING_FORCES
$ nsid nsidex boxid
0
$
$ xt yt zt xh yh zh fric
0.0 0.0 274.0 0.0 0.0 0.0 1.0
$
$ sw mass sw vel
800.000 8.94000
$
$ soft ssid node1 node2 node3 node4
99999
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Materials and Parts
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*PART
$ pid sid mid eosid hgid igrav adpopt
corner1
1 1 1
$
$
*MAT_PIECEWISE_LINEAR_PLASTICITY
$ mid ro e pr sigy etan eppf tdel
1 7.830E-06 200.0 0.3 0.207 0.750
$
$ c p lcss lcsr
40 5
$ PLASTIC STRESS/STRAIN CURVES
$ eps1 eps2 eps3 eps4 eps5 eps6 eps7 eps8
$ es1 es2 es3 es4 es5 es6 es7 es8
0.000 0.080 0.160 0.400 0.750
0.207 0.250 0.275 0.290 0.300
$
$
*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
1 2 3.0000
$ t1 t2 t3 t4 nloc
2.00 2.00 2.00 2.00
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Constraints, Boundary & Initial Conditions
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
$ NODAL SINGLE POINT CONSTRAINTS
$
*BOUNDARY_SPC_NODE
$ NID CID X Y Z RX RY RZ
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Nodes and Elements
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*END
Figures
Figures
This example has been taken from the introductory class of John D. Reid. Example name: symtube.k
Animated Result
Animated Result
This example has been taken from the introductory class of John D. Reid. Example name: symtube.k
Download
Download
This example has been taken from the introductory class of John D. Reid. Example name: symtube.k
