Hourglass
This is an example to demonstrate hourglassing. Download is available in the download section of this document.
Keywords
Keywords
This example has been taken from the LS-DYNA introductory class on metal forming.
Example name: hourglass.k
The used Keywords in alphabetical order.
*BOUNDARY_SPC_NODE *CONTROL_BULK_VISCOSITY *CONTROL_CONTACT *CONTROL_DYNAMIC_RELAXATION *CONTROL_ENERGY *CONTROL_HOURGLASS *CONTROL_OUTPUT *CONTROL_SHELL *CONTROL_TERMINATION *CONTROL_TIMESTEP *DATABASE_BINARY_D3PLOT *DATABASE_BINARY_RUNRSF *DATABASE_EXTENT_BINARY *DATABASE_GLSTAT *DATABASE_MATSUM *DATABASE_OPTION *DATABASE_RBDOUT *DATABASE_RCFORC *DATABASE_SLEOUT *DEFINE_CURVE *ELEMENT_SHELL *END *KEYWORD *LOAD_NODE_SET *MAT_PIECEWISE_LINEAR_PLASTICITY *NODE *PART *SECTION_SHELL *SET_NODE_LIST *SET_PART_LIST *TITLE
Reduced Input
Reduced Input
This example has been taken from the LS-DYNA introductory class on metal forming.
Example name: hourglass.k
$ ETA/DYNAFORM : DYNA3D(936) INPUT DECK
$ DATE : Nov 26, 1997 at 15:08:36
$
$ VIEWING INFORMATION
$ -.114250E+020.111425E+03-.250000E+010.102500E+03
$ 0.100000E+010.000000E+000.000000E+00
$ 0.000000E+000.100000E+010.000000E+00
$ 0.000000E+000.000000E+000.100000E+01
$
$ DRAW INFORMATION
$ DRAWTYPE DIRECTION BEADTYPE POSITION
$ 1 3 1 1.000
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
*KEYWORD
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (1) TITLE CARD.
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*TITLE
TEST OF HOURGLASS CONTROL
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (2) CONTROL CARDS.
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*CONTROL_TERMINATION
$ ENDTIM ENDCYC DTMIN ENDNEG ENDMAS
0.100E+02 0
*CONTROL_TIMESTEP
$ DTINIT SCFT ISDO TSLIMT DTMS LCTM ERODE MS1ST
0.000 0.900 0
*CONTROL_HOURGLASS
$ IHQ QH
3 0.050
*CONTROL_BULK_VISCOSITY
$ Q2 Q1
1.500 0.060
*CONTROL_SHELL
$ WRPANG ITRIST IRNXX ISTUPD THEORY BWC MITER
20.000 2 -1 1 2 2 1
*CONTROL_CONTACT
$ SLSFAC RWPNAL ISLCHK SHLTHK PENOPT THKCHG ORIEN
0.100 0.000 2 1 4 0 1
$ USRSTR USRFAC NSBCS INTERM XPENEN
0 0 10 0 4.000
*CONTROL_ENERGY
$ HGEN RWEN SLNTEN RYLEN
2 1 2 1
*CONTROL_DYNAMIC_RELAXATION
$ NRCYCK DRTOL DRFCTR DRTERM TSSFDR IRELAL EDTTL IDRFLG
250 0.001 0.995
*CONTROL_OUTPUT
$ NPOPT NEECHO NREFUP IACCOP OPIFS IPNINT IKEDIT
0 0 0 0 0.000 0 100
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (3) DATABASE CONTROL CARDS FOR ASCII FILE
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$*DATABASE_OPTION
$ DT
$
$OPTION : SECFORC RWFORC NODOUT ELOUT GLSTAT
$ DEFORC MATSUM NCFORC RCFORC DEFGEO
$ SPCFORC SWFORC ABSTAT NODFOR BNDOUT
$ RBDOUT GCEOUT SLEOUT MPGS SBTOUT
$ JNTFORC AVSFLT MOVIE
*DATABASE_MATSUM
0.100E+00
*DATABASE_GLSTAT
0.100E+00
*DATABASE_RCFORC
0.100E+00
*DATABASE_SLEOUT
0.100E+00
*DATABASE_RBDOUT
0.100E+00
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (4) DATABASE CONTROL CARDS FOR BINARY FILE
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*DATABASE_BINARY_D3PLOT
$ DT/CYCL LCDT NOBEAM
0.526E+00
*DATABASE_BINARY_RUNRSF
$ DT/CYCL LCDT NOBEAM
0.500E+04
*DATABASE_EXTENT_BINARY
$ NEIPH NEIPS MAXINT STRFLG SIGFLG EPSFLG RLTFLG ENGFLG
1
$ CMPFLG IEVERP BEAMIP DCOMP SHGE STSSZ
1
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (5) DEFINE TOOLS IN DYNAFORM
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ BLANK DESCRIPTION
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*SET_PART_LIST
$ SID DA1 DA2 DA3 DA4
1
$ PID1 PID2 PID3 PID4 PID5 PID6 PID7 PID8
1
*PART
$HEADING
PART PID = 1 PART NAME :TEST
$ PID SECID MID EOSID HGID GRAV ADPOPT
1 1 1
*SECTION_SHELL
$PROPERTY NAME:BLANK
$ SID ELFORM SHRF NIP PROPT QR/IRID ICOMP
1 2 0.100E+01 3.0 1.0 0.0
$ T1 T2 T3 T4 NLOC
1.000E+00 1.000E+00 1.000E+00 1.000E+00
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ (7) DEFINE CURVE
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$
$
*DEFINE_CURVE
$
$ lcid sidr scla sclo offa offo
$ i i f f f f
1 0 1.000E+00 1.000E+00 0.000E+00 0.000E+00
$ abscissa ordinate
$ f f
0.00000E+00 0.12590E+03
0.00500E+00 0.13434E+03
0.01000E+00 0.14552E+03
0.01500E+00 0.15616E+03
0.02000E+00 0.16631E+03
0.02500E+00 0.17597E+03
0.03000E+00 0.18517E+03
0.03500E+00 0.19393E+03
0.99500E+00 0.36969E+03
$
$
*DEFINE_CURVE
$
$ lcid sidr scla sclo offa offo
$ i i f f f f
2 0 1.000E+00 1.000E+00 0.000E+00 0.000E+00
$ abscissa ordinate
$ f f
0.00000E+00 0.00000E+00
1.00000E+01 5.00000E+02
$
*MAT_PIECEWISE_LINEAR_PLASTICITY
$MATERIAL NAME:BLANKMAT
$ MID RO E PR SIGY ETAN EPPF TDEL
1 2.700E-03 6.790E+04 3.400E-01 1.259E+02 0.000E+00 0.000E+00 0.000E+00
$ C P LCSS LCSR
0.000E+00 0.000E+00 0.100E+01 0.000E+00
$ EPS1 EPS2 EPS3 EPS4 EPS5 EPS6 EPS7 EPS8
$ ES1 ES2 ES3 ES4 ES5 ES6 ES7 ES8
$
$
$
$ MODEL DATA IN FILE :test.mod
$ NUMBER OF NODES : 94
$ NUMBER OF ELEMENTS : 68
$
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
$ MODEL DATA FILE
$ INCLUDE NODE, ELEMENT AND BOUNDARY CONDITION CARDS
$
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ NODAL POINT CARDS
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*LOAD_NODE_SET
1 2 2
*SET_NODE_LIST
1
50 72 83 94 105 116 127 138
61
*NODE
$ NODE X Y Z TC RC
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ SHELL ELEMENT CARDS
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*ELEMENT_SHELL
$ EID PID N1 N2 N3 N4
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ BOUNDARY CONDITION CARDS
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*BOUNDARY_SPC_NODE
$ NID/NSID CID DOFX DOFY DOFZ DOFRX DOFRY DOFRZ
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$
*END
Figures
Figures
This example has been taken from the LS-DYNA introductory class on metal forming.
Example name: hourglass.k
Animated Result
Animated Result
This example has been taken from the LS-DYNA introductory class on metal forming.
Example name: hourglass.k
Download
Download
This example has been taken from the LS-DYNA introductory class on metal forming.
Example name: hourglass.k
