Beam
This example shows how to calculate vibrations of a cantilever beam without damping. The cantilever is modeled with shell elements and elastic material. Download is available in the download section of this document.
Keywords
Keywords
This example has been taken from the introductory class of Dr. Klaus Weimar. Example name: beam.free.k
The used Keywords in alphabetical order.
*BOUNDARY_SPC_NODE *CONTROL_HOURGLASS *CONTROL_OUTPUT *CONTROL_TERMINATION *CONTROL_TIMESTEP *DAMPING_GLOBAL *DATABASE_BINARY_D3PLOT *DATABASE_BNDOUT *DATABASE_CROSS_SECTION_PLANE *DATABASE_CROSS_SECTION_SET *DATABASE_ELOUT *DATABASE_EXTENT_BINARY *DATABASE_GLSTAT *DATABASE_HISTORY_NODE *DATABASE_HISTORY_SHELL *DATABASE_NODOUT *DATABASE_SECFORC *DATABASE_SPCFORC *DEFINE_CURVE *ELEMENT_SHELL *END *KEYWORD *LOAD_NODE_SET *MAT_ELASTIC *NODE *PART *SECTION_SHELL *SET_NODE_LIST *SET_SHELL_LIST *TITLE
Reduced Input
Reduced Input
This example has been taken from the introductory class of Dr. Klaus Weimar. Example name: beam.free.k
*Node and *Element Cards are removed.
*KEYWORD
*TITLE
Cantilever Beam without Damping
*DAMPING_GLOBAL
$ i f
$ lcid valdmp
0 0.0
*CONTROL_TERMINATION
$ f i f f f
$ endtim endcyc dtmin endneg endmas
500.1E-03
*CONTROL_TIMESTEP
$ f f i f f i i i
$ dtinit tssfac isdo tslimt dt2ms lctm erode ms1st
0.9
*CONTROL_OUTPUT
$ i i i i f i i
$ npopt neecho nrefup iaccop opifs ipnint ikedit
1
*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
1
*DATABASE_BINARY_D3PLOT
$ f i
$ dt/cycl lcdt
50.00E-03
*DATABASE_GLSTAT
$ f i
$ dt binary
1.000E-03
*DATABASE_HISTORY_NODE
$ i i i i i i i i
$ id1 id2 id3 id4 id5 id6 id7 id8
21
*DATABASE_HISTORY_SHELL
$ i i i i i i i i
$ id1 id2 id3 id4 id5 id6 id7 id8
1
*DATABASE_ELOUT
$ f i
$ dt binary
500.0E-03
*DATABASE_NODOUT
$ f i
$ dt binary
1.000E-03
*DATABASE_BNDOUT
$ f i
$ dt binary
1.000E-03
*BOUNDARY_SPC_NODE
$ NID/NSID CID DOFX DOFY DOFZ DOFRX DOFRY DOFRZ
1 0 1 1 1 1 1 1
2 0 1 1 1 1 1 1
*DATABASE_SPCFORC
$ f i
$ dt binary
5.000E-03
*DATABASE_SECFORC
$ f i
$ dt binary
5.000E-03
*DATABASE_CROSS_SECTION_SET
$ i i i i i i
$ nsid hsid bsid ssid tsid dsid
1 1
*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
1 2
*SET_SHELL_LIST
$ i f f f f
$ sid da1 da2 da3 da4
1
$ i i i i i i i i
$ eid1
1
*DATABASE_CROSS_SECTION_PLANE
$ psid xct yct zct xch ych zch
0 50. -50. 50. 0. -50. 50.
$ xhev yhev zhev lenl lenm id itype
50. 100. 50. 200. 100.
*CONTROL_HOURGLASS
$ i f
$ ihq qh
4
*MAT_ELASTIC
$ i f f f f f f
$ mid ro e pr da db k
1 1.00e-08 210000.00 0.300
*SECTION_SHELL
$ i i f f f f i
$ sid elform shrf nip propt qr/irid icomp
1 2 1.0 2 1.0
$ f f f f f
$ t1 t2 t3 t4 nloc
10.0 10.0 10.0 10.0 0.0
*PART
$ c
$ head
Elastic Material
$ i i i i i i
$ pid sid mid eosid hgid adpopt
1 1 1
*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
*LOAD_NODE_SET
$ i i i f i i i i
$ nsid dof lcid sf cid m1 m2 m3
2 3 1 0.5
*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
21 22
*DEFINE_CURVE
$ i i f f f f
$ lcid sidr scla sclo offa offo
1
$ f f
$ a o
0.0 100.0
10.0 100.0
*END
Figures
Figures
This example has been taken from the introductory class of Dr. Klaus Weimar. Example name: beam.free.k
Animated Result
Animated Result
This example has been taken from the introductory class of Dr. Klaus Weimar. Example name: beam.free.k
Download
Download
This example has been taken from the introductory class of Dr. Klaus Weimar. Example name: beam.free.k
