lsdyna.data1

Triangular mesh processing tool, currently very few people use this software, but it allows us to gr

lsdo3 %[q2] Default quadratic viscosity
  [q1] Default linear viscosity
  [ibq] Default bulk viscosity type flag
lsdo3.1 coef
lsdo3.2 coef
lsdo3.3 bvtyp
bvtyp $[-1] standard (also some shell elements)
  [1] standard (default)
lsdo4 %(Contact Surface Computational Defaults)
  [slsfac] Scale for sliding penalties
  [rwpnal] Scale for rigid wall penalties
  [islchk] Initial penetration check
  [shlthk] Shell thickness option
  [penopt] Penalty stiffness option
  [thkchg] Shell thickness changes
  [orien] Orientation option
  [dkeep] Keep mass option
  [usrstr] Storage for interface control
  [usrfrc] Storage for friction control
  [nsbcs] Times steps between searching
  [interm] Intermittent searching flag
  [xpene] Penetration check
  [tfst] Flag for using actual shell thickness in
   single surface contact logic-types 4, 13, 15 an
  d 26
  [itftss] Override time step size for eroding
   contact
  [itfpsn] Bypass projection of slave nodes to
   master surface in tied interfaces type 2, 6,
   and 7
  [dsfric] Default static coefficient of friction
  [ddfric] Default dynamic coefficient of friction
  [dedc] Default exponential decay coefficient
  [dvfc] Default viscous friction coefficient
  [dth] Default contact thickness
  [dthsf] Default thickness scale factor
  [dpensf] Default local penalty scale factor
  [ignore] Ignore initial penetrations
  [frceng] Frictional sliding energy flag
lsdo4.1 fact
lsdo4.2 fact
lsdo4.3 lsdo43
lsdo4.4 lsdo44
lsdo4.5 lsdo45
lsdo4.6 lsdo46
lsdo4.7 lsdo47
lsdo4.8 lsdo48
lsdo4.9 stor
lsdo4.10 stor
lsdo4.11 ntim
lsdo4.12 offon
lsdo4.13 mult
lsdo4.16 tiedprj
lsdo4.17 coefric
lsdo4.18 coefric
lsdo4.19 coef
lsdo4.20 coefric
lsdo4.21 thick
lsdo4.22 thick
lsdo4.23 fact
lsdo4.24 ignr
lsdo4.25 frcng
tiedprj $[0] eliminate gaps by projection nodes
  [1] bypass projection
ignr $[0] move nodes to eliminate initial penetrat
  ions
  [1] allow initial penetrations to exist
frcng $[0] do not calculate
  [1] calculate frictional energy in contact
lsdo43 $[1] no initial penetration checking
  [2] full check of initial penetration
lsdo44 $[0] thickness is not considered
  [1] exclude rigid bodies
  [2] include rigid bodies
lsdo45 $[1] minimum of master segment and slave
   node
  [2] use master segment stiffness (old way)
  [3] use salve node value
  [4] use slave node value, area or mass weighted
  [5] same as previous, but inversely proportional
  to shell thickness
lsdo46 $[1] no consideration
  [2] shell thickness changes are included
lsdo47 $[1] active for automated input only
  [2] active for manual and automated input
  [3] inactive
lsdo48 $[0] delete mass at nodes when parent eleme
  nt is deleted (default)
  [1] keep mass at nodes when parent element is de
  leted
lsdo5 %(MADYMO3D/CAL3D coupling defaults)
  [unleng] Length conversion
  [untime] Time conversion
  [unforc] Force conversion
  [timidl] Idle time
  [flipx] X-coordinate flipping
  [flipy] Y-coordinate flipping
  [flipz] Z-coordinate flipping
  [sybcyl] Subcycling interval
  [mrpc] Material repositioning flag for
   MADYMO/M-CAL3D coupling
  [icsc] Implicit coupling for springback
   calculations
  [usaco] USA coupling option
  [nsmcol] Number of ships in MCOL coupling
lsdo5.1 fact
lsdo5.2 fact
lsdo5.3 fact
lsdo5.4 time
lsdo5.5 offon
lsdo5.6 offon
lsdo5.7 offon
lsdo5.8 cyl
lsdo5.9 lsdo65
lsdo5.10 lsdo66
lsdo5.12 lsdo67
lsdo6 $[cputim 0] No limit
  [cputim] Limit CPU time
lsdo6.2 seconds
lsdo7 %[nrcyck] Number of iterations between
   convergence check
  [drtol] Convergence tolerance for dynamic
   relaxation
  [drfctr] Dynamic relaxation factor
  [drterm] Optional termination time for dynamic
   relaxation
  [tssfdr] Scale for computed time step during
   dynamic relaxation
  [irelal] Automatic (Papadrakakis) control for
   dynamic relaxation
  [edttl] Dynamic relaxation convergence tolerance
  [idrflg] Dynamic relaxation stress
   initialization
lsdo7.1 itr
lsdo7.2 tol
lsdo7.3 fact
lsdo7.4 time
lsdo7.5 fact
lsdo7.6 offon
lsdo7.7 cvgtol
lsdo7.8 lsdo78
lsdo78 $[0] not active
  [1] dynamic relaxation is activated
  [2] initialization to prescribed geometry
lsdo8 %[hgen] Hourglass energy option
  [rwen] Stonewall energy option
  [slnten] Sliding interface energy option
  [rylen] Rayleigh energy option
lsdo8.1 lsdo81
lsdo8.2 lsdo82
lsdo8.3 lsdo82
lsdo8.4 lsdo82
lsdo81 $[1] hourglass energy is not computed
  [2] hourglass energy is included in energy
   balanced
lsdo82 $[1] energy dissipation is not computed
  [2] energy dissipation is included in energy bal
  ance
lsdo9 %
  [ihq] Hourglass viscosity type
  [qh] Hourglass coefficient
  [n36flg] Backward compatibility option
lsdo9.1 lsdo91
lsdo9.2 hgcoef
lsdo91 $[1] Standard LS-DYNA
  [2] Flanagan-Belytschko integration
  [3] Flanagan-Belytschko with exact volume integr
  ation
  [4] Stiffness form type 2 (Flanagan-Belytschko)
  [5] Stiffness form type 3 (Flanagan-Belytschko)
lsdo10 %[npopt] Print suppression (input)
  [neecho] Echo file print suppression (input)
  [nrefup] Reference node update for beams
  [iaccop] Averaged accelerations from velocities
  [opifs] Output interval for interface file
  [ipnint] First cycle time step printing
  [ikedit] Problem status report
  [iflush] I/O buffer flush interval
  [iprtf] Default print flag for RBDOUT and MATSUM
  files
lsdo10.1 lsdo101
lsdo10.2 lsdo102
lsdo10.3 lsdo103
lsdo10.4 lsdo104
lsdo10.5 itime
lsdo10.6 lsdo106
lsdo10.7 ntim
lsdo10.8 nts
lsdo10.9 prtflg
prtflg $[0] write part data into both MATSUM and R
  BDOUT
  [1] write data into RBDOUT file only
  [2] write data into MATSUM file only
  [3] do not write data into RBDOUT and MATSUM
lsdo101 $[0] no suppression
  [1] suppress nodal coordinates, element connecti
  vities, rigid wall definitions
lsdo102 $[0] all data printed
  [1] nodal printing is suppressed
  [2] element printing is suppressed
  [3] both node and element printing is suppressed
lsdo103 $[0] no update [1] update
lsdo104 $[0] no average [1] averaged between outpu
  t intervals
lsdo106 $[0] no printout [1] the governing time st
  ep sizes for each element are printed
lsdo11 %[ncpu] Number of CPU's
  [numrhs] Number of right hand sides written
  [iconst] Parallel solution accuracy flag
  [ipllacc] Parallel force assemble flag
lsdo11.1 ncpu
lsdo11.2 lsdo112
lsdo11.3 lsdo113
lsdo11.4 offon
lsdrgd %(Switch rigid body joint treatment)
  [lmf] Lagrange multiplier flag
  [jntf] Generalized joint stiffness formulation
  [orthmd] Orthogonalize modes
  [partm] Use global mass matrix in part mass dist
  ribution
  [sparse] Use sparse matrix multiply
lsdrgd.1 404
lsdrgd.2 405
lsdrgd.3 trfls
lsdrgd.4 trufls
lsdrgd.5 sprsmtrx
404 $[0] explicit penalty formulation [1] implicit 
   formulation with Langrange multipliers
405 $[0] incremental update [1] total formulation 
   (exact)
trfls $[0] true
  [1] false, modes are already orthogonalized
sprsmtrx $[0] false, do full matrix multiplies
  [1] true
lsdo112 $[0] same as number of CPU's
  [1] write only one
lsdo113 $[1] on
  [2] off, for a faster solution
lsdrmsh %[remin] Minimum edge length
  [remax] Maximum edge length
lsdrmsh.1 lgth
lsdrmsh.2 lgth
lsdo12 %[wrpang] Shell warpage angle limit
  [itrist] Triangular shell sorting
  [irnxx] Hughes-Liu shell normal update option
  [istupd] Shell thickness change option
  [theory] Shell theory option
  [bwc] Warping stiffness for Belytschko-Tsay
  [miter] Plane stress plasticity option
  [shproj] Projection method for warping stiffness
  [rotascl] Rotary shell mass scale factor
  [intgrd] Default numerical integration rule
  [lamsht] Laminated shell theory flag
lsdo12.1 deg
lsdo12.2 lsdo122
lsdo12.3 lsdo123
lsdo12.4 lsdo124
lsdo12.5 lsdo125
lsdo12.6 lsdo126
lsdo12.7 lsdo127
lsdo12.8 shprj
lsdo12.9 scafac
lsdo12.10 shint
lsdo12.11 lmsht
shprj $[0] drill projection
  [1] full projection
shint $[0] Gauss integration
  [1] Lobatto integration
lmsht $[0] do not update shear corrections
  [1] activate laminated shell theory
lsdosph %[ncbs] Number of cycles between sorting
  [boxid] SPH active particle box
  [sphdt] SPH particle death time
  [idim] SPH particle space dimension
lsdosph.1 numcy
lsdosph.2 bid
lsdosph.3 time
lsdosph.4 sphdim
numcy # Number of cycles between sorting:|
sphdim $[3] for 3D problems
  [2] for 2D problems
  [-2] for 2D axisymmetric problems
lstruct %[struct] Write out structured deck
  [iterm] End after reading structured inpu
  t file
lstruct.1 offon
lsdo50 $(Analysis Solution Procedure)
  [0] Structural Analysis only
  [1] Thermal analysis only
  [2] Coupled Structural Thermal analysis
  [4] Incompressible/low-Mach CFD analysis only
  [5] Couple incompressible fluid-structure interaction
lsdo51 %[mxmrts] Max. matrix reformations per time
   step
  [ctolt] Convergence tolerance for temperature
  [divcp] Divergence control parameter
lsdo51.1 202
lsdo51.2 829
lsdo51.3 lsdo52
lsdo52 # value :|
lsdo53 %[atype] Thermal analysis type
  [ptype] Thermal problem type
  [thslvr] Thermal analysis solver type
  [cgtol] Convergence tolerance
  [gpt] Number of Gauss points to be used in the
   solid elements
  [eqheat] Mechanical equivalent of heat
  [fwork] Fraction of mechanical work converted in
  to heat
  [sbc] Stefan Boltzmann constant
lsdo53.1 lsdo54
lsdo53.2 lsdo55
lsdo53.3 lsdo56
lsdo53.4 tol
lsdo53.5 lsdo58
lsdo53.6 frac
lsdo53.7 frac
lsdo53.8 const
lsdo54 $[0] Steady state analysis
  [1] Transient analysis
lsdo55 $[0] Linear
  [1] Nonlinear with material properties
   evaluated at Gauss point temperature
  [2] Nonlinear with material properties
   evaluated at element average temperature
lsdo56 $[1] Symmetric direct solver
  [2] Nonsymmetric direct solver
  [3] Diagonal scaled conjugate gradient iterative
  [4] Incomplete Choleski conjugate gradient
   iterative
lsdo56.3 lsdo57
lsdo56.4 lsdo57
lsdo57 %[cgtol] Convergence tolerance for
   iterative solver
lsdo57.1 829
lsdo58 $[0] the default is set to 8
  [1] one point quadrature is used
lsdo59 %[ktst] Time step control
  [tipt] Time integration parameter
  [itst] Initial thermal time step
  [tmint] Minimum thermal time step
  [tmaxt] Maximum thermal time step
  [dtempt] Maximum temperature change
  [tscpt] Time step control parameter
lsdo59.1 lsdo60
lsdo59.2 lsdo61
lsdo59.3 tmst
lsdo59.4 tmst
lsdo59.5 tmst
lsdo59.6 de9
lsdo59.7 815
lsdo60 $[0] Fixed time step
  [1] Variable time step
lsdo61 $[0.5] Crank-Nicholson scheme
  [1.0] Fully implicit
  [ ] Intermediate value
lsdo61.3 lsdo62
lsdo62 # parameter :|
lsdo63 # minimum element size :|
lsdo64 $[0] Two pass adaptivity
  [1] One pass adaptivity
lsdo65 $[0] off
  [1] on, section 68 input data is read
  [2] no repositioning of nodes
lsdo66 $[0] off
  [1] output LS-NIKE3D
  [2] output LS-DYNA
  [3] output NASTRAN
lsdo67 # number of ships :|
lsdo122 $[1] full sorting [2] no sorting required
lsdo123 $[-2] unique nodal fibers
  [-1] compute normals each cycle
  [1] compute on restarts
  [ ] compute every "n" cycles
lsdo123.4 cyl
lsdo124 $[0] no change [1] membrane straining caus
  es thickness change
lsdo125 $[1] Hughes-Liu
  [2] Belytschko-Tsay (default)
  [3] BCIZ triangular shell
  [4] C0 triangular shell
  [5] Belytschko-Tsay membrane
  [6] S/R Hughes Liu
  [7] S/R co-rotational Hughes Liu
  [8] Englemann-Whirley shell
  [9] full integrated Belytschko-Tsay membrane
  [10] Belytschko-Wong-Chiang
  [11] Fast (co-rotational) Hughes-Liu
lsdo126 $[1] Belytschko-Wong-Chiang warping stiffn
  ess added
  [2] Belytschko-Tsay
lsdo127 $[1] iterative plasticity with 3 secant it
  erations
  [2] full iterative plasticity
  [3] radial return noniterative plasticity
lsdo15 %[endtim] termination time
  [endcyc] Termination cycle
  [dtmin] Reduction for initial time step
  [endeng] Change in energy ratio
  [endmas] Change in total mass
lsdo15.1 time
lsdo15.2 endcyl
lsdo15.3 fact
lsdo15.4 perc
lsdo15.5 perc
lsdo16 %[dtinit] Initial time step
  [scft] Scale for computed time step
  [isdo] Time size option for 4-node shells
  [tslimt] Shell element min. time step
  [dt2ms] Mass scaled solution time step
  [lctm] Limit maximum time step by load curve
  [erode] Erosion flag
  [ms1st] Limit mass scaling to first step
  [dt2msf] Scale factor for initial time step size
lsdo16.1 tmst
lsdo16.2 fact
lsdo16.3 lsdo163
lsdo16.4 tmst
lsdo16.5 tmst
lsdo16.6 load
lsdo16.7 offon
lsdo16.8 offon
lsdo16.9 scafac
lsdo163 $[0] characteristic length=area/(longest s
  ide)[1] characteristic length=area/(longest diag
  onal}[2] based on bar wave speed
lsdy1 $(Format Type)
  [FIXED] Fixed Format
  [KEYWORD] Keyword Format
108 # exponent :|
lsdmp %(Damping Cards for LS-DYNA)
  [gflg] Global
  [mflg] Material (Part) Mass
  [sflg] Material (Part) Rayleigh Stiffness
  [rflg] Apply damping relative to motion of rigid
  body
lsdmp.1 lsdmpg
lsdmp.2 lsdmpm
lsdmp.3 lsdmps
lsdmp.4 lsdmpr
lsdmpg %(Global Damping Options)
  [iddlc] Damping load curve ID
  [valdmp] System damping constant
  [ ] Scale Factors
lsdmpg.1 load
lsdmpg.2 1577