Wood Post
A wooden post with a hole is hit by a bar and is supposed to snap-off. The bar is rigid and extra mass is added via density to give it enough energy to snap the post.
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Wood Post
A wooden post with a hole is hit by a bar and is supposed to snap-off. The bar is rigid and extra mass is added via density to give it enough energy to snap the post.
*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_RBDOUT *DATABASE_SLEOUT *ELEMENT_SHELL *ELEMENT_SOLID *END *INITIAL_VELOCITY_GENERATION *KEYWORD *MAT_PIECEWISE_LINEAR_PLASTICITY *MAT_RIGID *NODE *PART *SECTION_SHELL *SECTION_SOLID *TITLE
*KEYWORD
*TITLE
A wooden post, with a hole, is hit by a bar and is supposed to snap-off.
$
$$ The bar is rigid and extra mass (via density) is added to
$$ give it enough energy to snap the post.
$
$$ This model uses constant stress solid element formulation (default: type 1)
$$ for the posts and default hourglass viscosity type 1.
$
$
$ John D. Reid 2/6/95, 3/11/98, 2/7/00
$
$ Units: mm, kg, ms, kN, GPa, kN-mm
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Control Ouput
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*CONTROL_TERMINATION
$ endtim endcyc dtmin endeng endmas
7.00
$
*CONTROL_ENERGY
$ hgen rwen slnten rylen
2 2
$
*DATABASE_BINARY_D3PLOT
$ dt lcdt
0.5
$
*DATABASE_EXTENT_BINARY
$ neiph neips maxint strflg sigflg epsflg rltflg engflg
$ cmpflg ieverp beamip
1
$
*DATABASE_BINARY_D3THDT
$ dt lcdt
999999
$
$
*DATABASE_GLSTAT
$ dt
0.10
$
*DATABASE_MATSUM
$ dt
0.10
$
*DATABASE_NODOUT
$ dt
0.10
$
*DATABASE_HISTORY_NODE
$ id1 id2 id3 id4 id5 id6 id7 id8
758
$
*DATABASE_RBDOUT
$ dt
0.10
$
*DATABASE_SLEOUT
$ dt
0.10
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Contacts - Sliding Interfaces
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*CONTACT_AUTOMATIC_SINGLE_SURFACE
$ ssid msid sstyp mstyp sboxid mboxid spr mpr
0 0 1 1
$ fs fd dc vc vdc penchk bt dt
$ sfs sfm sst mst sfst sfmt fsf vsf
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Boundary Conditions
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*BOUNDARY_SPC_NODE
$ nid cid dofx dofy dofz dofrx dofry dofrz
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Initial Conditions
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*INITIAL_VELOCITY_GENERATION
$ sid styp omega vx vy vz
3 2 26.82 0.0 0.0
$ xc yc zc nx ny nz phase
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Parts and Materials
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
$
$$$ Part 3 shell: bar
$
$$$ Part 4 solid: lower_post
$
$$$ Part 5 solid: upper_post
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Bar
$
$$ Bar - Rigid, constrained to translate only in the x-direction
$
*PART
bar
$ pid sid mid eosid hgid grav adpopt
3 1 1
$
$
*MAT_RIGID
$ mid ro e pr n couple m alias
1 0.143E-02 200.0 0.33
$
$ cmo con1 con2
1.0 5 7
$
$ lco/a1 a2 a3 v1 v2 v3
$
$
*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
1 2 3.0000
$ t1 t2 t3 t4 nloc
1.54 1.54 1.54 1.54
$
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Post
$
$
*PART
$ pid sid mid eosid hgid grav adpopt
$
lower_post
4 2 2
upper_post
5 2 3
$
$
*MAT_PIECEWISE_LINEAR_PLASTICITY
$ mid ro e pr sigy etan eppf tdel
2 0.499E-06 11.37 0.32 0.0468 0.11
$ Cowper/Symonds Strain Rate Parameters
$ C p lcss lcsr
$ plastic stress/strain curves
0.000 0.250
0.0468 0.0470
$
$
*MAT_PIECEWISE_LINEAR_PLASTICITY
$ mid ro e pr sigy etan eppf tdel
3 0.499E-06 110.37 0.32 0.0468 0.25
$ Cowper/Symonds Strain Rate Parameters
$ C p lcss lcsr
$ plastic stress/strain curves
0.000 0.250
0.0468 0.0470
$
$
*SECTION_SOLID
$ sid elform
2
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$$$$ Define Nodes and Elements
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$
*END