Spotweld IV
This is a series of examples to show how to model spotwelds. Fourth example shows how to use *CONTACT_TIEBREAK_NODES keywords.
https://www.dynaexamples.com/intro-by-k.-weimar/spotweld/spotweld-iv
https://www.dynaexamples.com/@@site-logo/LS-DYNA-Examples-Logo480x80.png
Spotweld IV
This is a series of examples to show how to model spotwelds. Fourth example shows how to use *CONTACT_TIEBREAK_NODES keywords.
*BOUNDARY_PRESCRIBED_MOTION_SET *BOUNDARY_SPC_NODE *CONTACT_AUTOMATIC_SINGLE_SURFACE *CONTACT_TIEBREAK_NODES_ONLY *CONTROL_CONTACT *CONTROL_TERMINATION *DATABASE_BINARY_D3PLOT *DATABASE_BINARY_D3THDT *DATABASE_CROSS_SECTION_SET *DATABASE_EXTENT_BINARY *DATABASE_GLSTAT *DATABASE_HISTORY_NODE *DATABASE_NODOUT *DATABASE_RCFORC *DATABASE_SECFORC *DATABASE_SPCFORC *DEFINE_CURVE *ELEMENT_SHELL *END *KEYWORD *MAT_ELASTIC *NODE *PART *SECTION_SHELL *SET_NODE_LIST *SET_SEGMENT *SET_SHELL_LIST *TITLE
*KEYWORD
$-----------------------------------------------------------
*TITLE
Sliding Interface TIEBREAK_NODES_ONLY (i8)
$CONTACT_TIEBREAK_NODES_TO_SURFACE
*CONTACT_TIEBREAK_NODES_ONLY
$ i i i i i i i i
$ ssid msid sstyp mstyp sboxid mboxid spr mpr
3 4 4 1
$ f f f f f i f f
$ fs fd dc vc vdc penchk bt dt
$ f f f f f f f f
$ sfs sfm sst mst sfst sfmt fsf vsf
1. 1.
$ f f f f
$ nff sff nen mes
10000.0 50000.0 1.0 1.0
*SET_SEGMENT
$ i f f f f
$ sid da1 da2 da3 da4
4
$ i i i i f f f f
$ n1 n2 n3 n4 a1 a2 a3 a4
123 122 117 118
124 123 118 119
128 127 122 123
129 128 123 124
*SET_NODE_LIST
$ i f f f f
$ sid da1 da2 da3 da4
3
$ i i i i i i i i
$ nid1 nid2 nid3 nid4 nid5 nid6 nid7 nid8
213
*DATABASE_RCFORC
$ dt binary
0.01e-3
$-----------------------------------------------------------
*CONTROL_TERMINATION
$ f i f f f
$ endtim endcyc dtmin endneg endmas
2.00e-3
*CONTROL_CONTACT
$ f f i i i i i
$ slsfac rwpnal islchk shlthk penopt thkchg orien
0.1 1 1 1
$ i i i i f
$ usrstr usrfac nsbcs interm xpene
*DATABASE_EXTENT_BINARY
$ i i i i i i i i
$ neiph neips maxint strflg sigflg epsflg rltflg engflg
1
$ i i i
$ cmpflg ieverp beamip
*DATABASE_BINARY_D3PLOT
$ f i
$ dt/cycl lcdt
0.10e-3
*DATABASE_BINARY_D3THDT
$ f i
$ dt/cycl lcdt
0.50e-5
*DATABASE_HISTORY_NODE
$ i i i i i i i i
$ id1 id2 id3 id4 id5 id6 id7 id8
123 233
*DATABASE_GLSTAT
$ f i
$ dt binary
0.01e-3
*DATABASE_NODOUT
$ dt binary
0.01e-3
*DATABASE_SPCFORC
$ dt binary
0.01e-3
*DATABASE_SECFORC
$ dt binary
0.01e-3
*DATABASE_CROSS_SECTION_SET
$ i i i i i i
$ nsid hsid bsid ssid tsid dsid
2 1
*SET_NODE_LIST
$ i f f f f
$ sid da1 da2 da3 da4
2
$ i i i i i i i i
$ nid1 nid2 nid3 nid4 nid5 nid6 nid7 nid8
106 107 108 109 110
*SET_SHELL_LIST
$ i f f f f
$ sid da1 da2 da3 da4
1
$ i i i i i i i i
$ eid1 eid2 eid3 eid4 eid5 eid6 eid7 eid8
105 106 107 108
*DATABASE_CROSS_SECTION_SET
$ i i i i i i
$ nsid hsid bsid ssid tsid dsid
4 2
*SET_NODE_LIST
$ i f f f f
$ sid da1 da2 da3 da4
4
$ i i i i i i i i
$ nid1 nid2 nid3 nid4 nid5 nid6 nid7 nid8
226 227 228 229 230
*SET_SHELL_LIST
$ i f f f f
$ sid da1 da2 da3 da4
2
$ i i i i i i i i
$ eid1 eid2 eid3 eid4 eid5 eid6 eid7 eid8
221 222 223 224
*MAT_ELASTIC
$ i f f f f f f
$ mid ro e pr da db k
1 7.85e-09 210000.00 0.3
*SECTION_SHELL
$ i i f f f f i
$ sid elform shrf nip propt qr/irid icomp
1 16 0.83333 2.0 3.0
$ f f f f f
$ t1 t2 t3 t4 nloc
2.0 2.0 2.0 2.0
$icomp =1 10f
$ f f f f f f f f
*PART
$ c
$ head
Elastic Material
$ i i i i i i
$ pid sid mid eosid hgid adpopt
1 1 1 0 0 0
*PART
$ c
$ head
Elastic Material
$ i i i i i i
$ pid sid mid eosid hgid adpopt
2 1 1 0 0 0
*DEFINE_CURVE
$ i i f f f f
$ lcid sidr scla sclo offa offo
1
$ f f
$ abscissa ordinate
0.0000 0.0
0.0200 40.0
*BOUNDARY_PRESCRIBED_MOTION_SET
$ i i i i f i
$ nid dof vad lcid sf vid
1 1 2 1 1.0 0
*SET_NODE_LIST
$ i f f f f
$ sid da1 da2 da3 da4
1
$ i i i i i i i i
$ nid1 nid2 nid3 nid4 nid5 nid6 nid7 nid8
231 232 233 234 235
*CONTACT_AUTOMATIC_SINGLE_SURFACE
$ i i i i i i i i
$ ssid msid sstyp mstyp sboxid mboxid spr mpr
$ f f f f f i f f
$ fs fd dc vc vdc penchk bt dt
$ f f f f f f f f
$ sfs sfm sst mst sfst sfmt fsf vsf
*BOUNDARY_SPC_NODE
$ NID/NSID CID DOFX DOFY DOFZ DOFRX DOFRY DOFRZ
*NODE
$ i8 f f f i i
$ node x y z tc rc
*ELEMENT_SHELL
$ i i i i i i
$ eid pid n1 n2 n3 n4
*END