Reduced Input
*Node and *Element Cards are removed.
*KEYWORD
*TITLE
Fuse plate being pulled a part exhibits hourglassing troubles.
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$ LSTC Example
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$ Last Modified: October 14, 1997
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$ Really good hourglassing on fuse plate - part 3
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$ Switch to shell formulation S/R Hughes-Liu (6) - eliminates HG
$ ===> *SECTION_SHELL - ELFORM
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$ Units: mm, kg, ms, kN, GPa, kN-mm
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$$$$ Control Ouput
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$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
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*CONTROL_TERMINATION
$ endtim endcyc dtmin endneg endmas
10.01
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*CONTROL_ENERGY
$ HGEN RWEN SLNTEN RYLEN
2 2 1 1
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*CONTROL_OUTPUT
$ NPOPT NEECHO NREFUP IACCOP OPIFS IPNINT IKEDIT
1 3
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*DATABASE_BINARY_D3PLOT
$ dt lcdt
1.0
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*DATABASE_BINARY_D3THDT
$ dt lcdt
999999
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*DATABASE_GLSTAT
$ dt
0.1
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*DATABASE_MATSUM
$ dt
0.1
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*DATABASE_SWFORC
$ dt
0.1
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$$$$ Constrain the Plates Together
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$$$ Spotweld the fuse plate to the post flanges.
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*CONSTRAINED_SPOTWELD
$ n1 n2 sn sf n m
284 511
247 512
428 527
417 517
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$$$$ Boundary and Loading Conditions
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$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
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*BOUNDARY_SPC_NODE
$ nid cid x y z rx ry rz
150 0 1 1 1 1 1 1
151 0 1 1 1 1 1 1
152 0 1 1 1 1 1 1
179 0 1 1 1 1 1 1
180 0 1 1 1 1 1 1
181 0 1 1 1 1 1 1
204 0 1 1 1 1 1 1
205 0 1 1 1 1 1 1
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*LOAD_NODE_POINT
$ nid dof lcid sf cid m1 m2 m3
17 1 2 2.000E+03 0
18 1 2 2.000E+03 0
19 1 2 2.000E+03 0
61 1 2 2.000E+03 0
62 1 2 2.000E+03 0
63 1 2 2.000E+03 0
100 1 2 2.000E+03 0
101 1 2 2.000E+03 0
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*DEFINE_CURVE
$ lcid sidr scla sclo offa offo
2
$ abscissa ordinate
0.00000000000000E+00 1.0000000000000E+00
1.00000000000000E+04 1.0000000000000E+04
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$$$$ Define Parts and Materials
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$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
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*PART
$ pid sid mid eosid hgid grav adpopt
pstflang
1 1 1
postweb
2 2 1
fuseplat
3 3 1
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$$$$ Materials
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*MAT_PIECEWISE_LINEAR_PLASTICITY
$...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
$ mid ro e pr sigy etan eppf tdel
1 0.783E-05 2.000E+02 0.3 2.070E-01 7.500E-01
$ Cowper/Symonds Strain Rate Parameters
$ c p lcss lcsr
40 5
$ Plastic stress/strain curve
0.000E+00 8.000E-02 1.600E-01 4.000E-01 9.900E+01
2.070E-01 2.500E-01 2.750E-01 2.899E-01 3.000E-01
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$$$$ Sections
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*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
1 6
$ t1 t2 t3 t4 nloc
5.4600E+00 5.460E+00 5.460E+00 5.460E+00
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*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
2 6
$ t1 t2 t3 t4 nloc
4.3200E+00 4.320E+00 4.320E+00 4.320E+00
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*SECTION_SHELL
$ sid elform shrf nip propt qr/irid icomp
3 2
$ 3 6
$ t1 t2 t3 t4 nloc
4.7625E+00 4.762E+00 4.762E+00 4.762E+00
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$$$$ Define Nodes and Elements
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*END