lsdyna.data1

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

  ection scheme
  [divu] Set RMS divergence tolerance
  [thetak] Time weighting for viscous/diffusion te
  rms
  [thetaa] Time weighting for advection terms
  [thetaf] Time weighting for body forces and boun
  dary conditions
  [msol] Set the equation solver type
  [maxit] Set the maximum number of iterations
  [ichkit] Set the convergence criteria check inte
  rval
  [iwrt] Activate the output of diagnostic informa
  tion
  [ihist] Activate the generation of a convergence
   history file
  [eps] Set the convergence criteria
  [ihg] Set the type of hourglass stabilization
  [ehg] Set the hourglass stabilization multiplier
lscfdm.1 mmform
lscfdm.2 btd
lscfdm.3 fct
lscfdm.4 tol
lscfdm.5 theta
lscfdm.6 theta
lscfdm.7 theta
lscfdm.8 msol
lscfdm.9 maxitr
lscfdm.10 intrv
lscfdm.11 offon
lscfdm.12 offon
lscfdm.13 eps
lscfdm.14 ihg
lscfdm.15 mult
msol $[0] MSOL=20 (default)
  [20] Jacobi preconditioned conjugate gradient me
  thod
  [30] Jacobi preconditioned conjugate gradient sq
  uared method
lscfdp %[ipsol] Solver Type
  [maxitr] Maximum number of iterations
  [ichcit] Convergence criteria check interval
  [idiag] Activate diagnostic information output
  [ihst] Activate convergence history file generat
  ion
  [epsp] Set the convergence criteria
  [nvec] Set number of A-conjugate vectors
  [istab] Set the stabilization type
  [pbeta] Stabilization parameter
  [sid] Solid or shell element set ID
  [plev] Hydrostatic pressure level
  [plcid] Hydrostatic pressure load curve
lscfdp.1 pslvtyp
lscfdp.2 number
lscfdp.3 intrv
lscfdp.4 offon
lscfdp.5 offon
lscfdp.6 eps
lscfdp.7 number
lscfdp.8 istb
lscfdp.9 bta
lscfdp.10 setid
lscfdp.11 amp
lscfdp.12 load
lscfdt %[itemp] Toggle energy equation
  [nspec] Activate species equations
  [imss] Select mass matrix formulation
  [ibaltd] Toggle use of balancing tensor diffusiv
  ity
  [iaflx] Toggle use of advective flux limiting ad
  vection
  [thetk] Time weighting for viscous/diffusion ter
  ms
  [thtaa] Time weighting for advection terms
  [thetf] Time weighting for body forces
  [itsol] Set equation solver type
  [mxiter] Set maximum number of iterations
  [ickint] Convergence criteria check interval
  [idagn] Activate diagnostic information output
  [ichist] Activate convergence history file gener
  ation
  [epst] Set the convergence criteria
  [ihgt] Set the type of hourglass stabilization
  [ehgt] Set the hourglass stabilization multiplier
lscfdt.1 eeqn
lscfdt.2 number
lscfdt.3 mmform
lscfdt.4 btd
lscfdt.5 fct
lscfdt.6 theta
lscfdt.7 theta
lscfdt.8 theta
lscfdt.9 msol
lscfdt.10 number
lscfdt.11 intrv
lscfdt.12 offon
lscfdt.13 offon
lscfdt.14 eps
lscfdt.15 ihg
lscfdt.16 mult
lscfdb %[itrb] Select the turbulence model
  [smagc] Set the Smagorinsky constant
lscfdb.1 tmdl
lscfdb.2 val
tmdl $[0] Turbulence models disabled
  [1] Smagorinsky LES sub-grid scale model
  [101] Spalart-Almaras model
eeqn $[0] No energy equation (default)
  [1] Temperature energy equation
  [2] Enthalpy energy equation
pslvtyp $[0] default(22 for serial, 21 for mpp) 
  [10] Sparse direct solver 
  [20] Jacobi preconditioned conjugate gradient
  [21] SSOR preconditioned conjugate gradient
  [22] SSOR using Eisenstat transformation
istb $[0] ISTAB=1 (default)
  [1] Local jump stabilization
  [2] Global jump stabilization
  [-1] No stabilization is active
lscrsn %[icoarse] Set coarsening flag
  [fangl] Set flatness angle
  [ ] Set number of seed nodes
lscrsn.1 cflg
lscrsn.2 angle
lscrsn.3 snodes
snodes %[sn1] Seed #1
  [sn2] Seed #2
  [sn3] Seed #3
  [sn4] Seed #4
  [sn5] Seed #5
  [sn6] Seed #6
  [sn7] Seed #7
  [sn8] Seed #8
snodes.1 nnum
snodes.2 nnum
snodes.3 nnum
snodes.4 nnum
snodes.5 nnum
snodes.6 nnum
snodes.7 nnum
snodes.8 nnum
cflg $[0] Do not coarsen(default) [1] Coarsen mesh
lsdacc %(Accuracy Parameters)
  [nosu] Objective stress update
  [inn] Invariant node numbering
lsdyadap %(Relaxation Factors)
  [factin] Initial relaxation factor
  [dfactr] Incremental increase
lsdyadap.1 fact
lsdyadap.2 incr
lsdyimpa %(Implicit Auto. Time Step Control)
  [iautf] Automatically adjust time step
  [iteropt] Optimum equil. iteration count
  [iterwin] Allowable iteration window
  [dtmini] Minimum allowable time step size
  [dtmaxi] Maximum allowable time step size
lsdyimpa.1 offon
lsdyimpa.2 optitr
lsdyimpa.3 808
lsdyimpa.4 867
lsdyimpa.5 868
lsdyimpd %(Implicit Dynamic Analysis)
  [inal] Analysis Type
  [newgam] Newmark integration constant, gamma
  [newbet] Newmark integration constant, beta
lsdyimpd.1 statdy
lsdyimpd.2 de1
lsdyimpd.3 de1
lsdyimpe %(Implicit Eigenvalue Analysis)
  [neig] Number of eigenvalues to extract
  [center] Center frequency
  [lflag] Left end point finite flag
  [lftend] Left end point of interval
  [rflag] Right end point finite flag
  [rhtend] Right end point of interval
  [eigmth] Eigenvalue extraction method
  [shfscl] Shift scale
lsdyimpe.1 number
lsdyimpe.2 freq
lsdyimpe.3 lflg
lsdyimpe.4 coord
lsdyimpe.5 rflg
lsdyimpe.6 coord
lsdyimpe.7 eigex
lsdyimpe.8 1351
lflg $[0] left end point is -infinity
  [1] left end point is LFTEND
rflg $[0] right end point is +infinity
  [1] left end point is RHTEND
eigex $[1] Subspace iteration (not recommended)
  [2] Block Shift and Invert Lanczos (default)
lsdyimpg %(Implicit General Control Parameters)
  [imflag] Implicit/Explicit switching flag
  [dt0] Initial time step size
  [imform] Element formulation switching flag
  [nsbs] Number of steps in nonlinear springback
  [istress] Geometric (initial stress) stiffness f
  lag
  [ ] Version 960
lsdyimpg.1 impexp
lsdyimpg.2 tmst
lsdyimpg.3 swret
lsdyimpg.4 ntim
lsdyimpg.5 istiff
lsdyimpg.6 imp960
imp960 %[cnstn] Consistent tangent stiffness indic
  ator
  [form] Element formulation
imp960.1 ctsi
imp960.2 eform
istiff $[1] include
  [2] ignore
ctsi $[0] Do not use (default) [1] use
eform $[0] Type 16 [1] Type 6
lsdyimpn %(Implicit Nonlinear Solver Parameters)
  [nsolvr] Nonlinear equation solver method
  [ilimit] Iteration limit between stiffness refor
  mations
  [maxref] Stiffness reformation limit per time st
  ep
  [dctoln] Displacement convergence tolerance
  [ectoln] Energy convergence tolerance
  [lstoln] Line search convergence tolerance
  [impln2] Additional options
  [impln3] Arc length options
lsdyimpn.1 nmthd
lsdyimpn.2 itrlmt
lsdyimpn.3 lmt
lsdyimpn.4 cvgtol
lsdyimpn.5 cvgtol
lsdyimpn.6 cvgtol
lsdyimpn.7 impln2
lsdyimpn.8 impln3
nmthd $(implicit nonlinear solver method)
  [1] linear
  [2] nonlinear with BFGS updates (default)
  [3] nonlinear with Broyden updates
  [4] nonlinear with DFP updates
  [5] nonlinear with Davidon updates
  [6] nonlinear with BFGS updates + arclength
  [7] nonlinear with Broyden updates + arclength
  [8] nonlinear with DFP updates + arclength
  [9] nonlinear with Davidon updates + arclength
lsdo69 # gravitational acceleration :|
impln2 %(behavior flags)
  [dnorm] Displacement norm for convergence
  [diverg] Divergence flag
  [istif] Stiffness reformation flag
  [nlprt] Nonlinear print solver flag
impln2.1 norm
impln2.2 divf
impln2.3 rstiff
impln2.4 pflg
impln3 %(arc length parameters)
  [arcctl] Arc length controlling node ID
  [arcdir] Arc length controlling node direction
  [arclen] Arc length size
  [arcmth] Arc length method
  [arcdmp] Arc length damping option
impln3.1 ndid
impln3.2 400
impln3.3 arclen
impln3.4 401
impln3.5 402
lsdyimpl %(Implicit Linear Solver Parameters)
  [lsolvr] Linear equation solver method
  [lprint] Linear solver print flag
  [negev] Negative eigenvalue flag
  [sorder] Ordering option
  [drcm] Drilling rotation constraint method
  [drcprm] Drilling rotation constraint parameter
  [autospc] AUTOSPC switch
  [autotol] AUTOSPC tolerance
lsdyimpl.1 lslvr
lsdyimpl.2 lsprflg
lsdyimpl.3 ngv
lsdyimpl.4 ordr
lsdyimpl.5 drcm
lsdyimpl.6 parm
lsdyimpl.7 autspc
lsdyimpl.8 tol
lslvr $[1] direct, sparse, incore
  [3] direct, sparse, double precision
  [4] SMP parallel multi-frontal sparse solver #2 
  (default)
  [5] SMP parallel multi-frontal sparse solver #2,
   double precision
  [6] BCSLIB-EXT, direct, sparse, double precision
  [10] iterative, best of currently available meth
  ods
  [11] iterative, Conjugate Gradient method
  [12] iterative, CG with Jacobi preconditioner
  [13] iterative, CG with Incomplete Choleski prec
  onditioner
  [14] iterative, Lanczos method
  [15] iterative, Lanczos with Jacobi precondition
  er
  [16] iterative, Lanczos with Incomplete Choleski
   preconditioner
lsprflg $[0] no printing
  [1] summary statistics on memory, cpu time, and 
   iteration count
  [2] more statistics
  [3] even more statistics and debugging checking
ngv $[1] stop or retry step
  [2] print warning message, try to continue (defa
  ult)
ordr $[0] method set automatically by LS-DYNA
  [1] MMD, Multiple Minimum Degree
  [2] Metis
drcm $[1] add stiffness (default)
  [2] generate geometry based drilling constraint
  [3] do neither
autspc $[1] scan stiffness matrix for rank deficie
  nt column triples associated with rigid body tra
  nsformations
  [2] do not scan
400 $[1] X-translation [2] Y-translation [3] Z-tra
  nslation
401 $[1] Crisfield (default) [2] Ramm
402 $[2] off (default) [1] on, oscillations are su
  ppressed
lsdyimps %(Artificial Stabilization Parameters)
  [ias] Artificial stabilization flag
  [ascale] Stabilization scale factor
  [strttim] Start time
  [endtime] End time
lsdyimps.1 403
lsdyimps.2 1351
lsdyimps.3 time
lsdyimps.4 time
lsnlcl %(Additional memory allocation)
  [nmem] Percentage increase of memory allocated
lsnlcl.1 perc
403 $[1] active (default for "springback" analysis
  )
  [2] inactive (default for "standard" analysis)
lsdo70 $(direction of gravitational loading)
  [X] global x-direction
  [Y] global y-direction
  [Z] global z-direction
lsdo71 ## materials to be initialized >|
lsdo72 ## density versus depth curve >|
lsdo68 %[YLDB] Brode Function Yield (Ktons)
  [HITEB] Brode Function Height Of Burst
  [XB0] Model x-Coordinate Of The Brode Origin
  [YB0] Model y-Coordinate Of The Brode Origin
  [ZB0] Model z-Coordinate Of The Brode Origin
  [TB0] Model Time At Brode Time Origin
  [LCB1] Brode Function Arrival vs Range Load
   Curve
  [LCB2] Brode Function Yield vs Time Load Curve
  [CLB] Brode Function Length Conversion Factor
   From kft To DYNA Units
  [CTB] Brode Function Time Conversion Factor
   From milliseconds To DYNA Units
  [CPB] Brode Function Pressure Conversion Factor
   From psi To DYNA Units
lsdo68.1 793
lsdo68.2 794
lsdo68.3 795
lsdo68.4 796
lsdo68.5 797
lsdo68.6 798
lsdo68.7 802
lsdo68.8 802
lsdo68.9 815
lsdo68.10 815
lsdo68.11 815
lsdo1 %[adpfreq] Time interval between refinements
  [adptol] Adaptive error tolerance
  [adpopt] Adaptive options
  [maxlvl] Maximum refinement levels
  [tbirth] Birth time
  [tdeath] Death time
  [lcadp] Load curve for adaptive interval
  [gsam] Generate and save adaptive mesh at exit
  [mnelsz] Minimum element size based on edge
   length
  [npss] Two or one pass adaptivity flag
  [ireflg] Uniform refinement level
  [adpene] Adapt mesh upon approach or penetration
  [adpth] Max shell thickness for adaptive remeshing
  [imem] Memory flag (Interacts with env variable)
  [orient] Contact orientation flag for forming
  [maxel] Max. number of elements for adaptivity
lsdo1.1 itime
lsdo1.2 deg
lsdo1.3 lsdo13
lsdo1.4 nlev
lsdo1.5 time
lsdo1.6 time
lsdo1.7 load
lsdo1.9 lsdo63
lsdo1.10 lsdo64
lsdo1.11 lev
lsdo1.12 dist
lsdo1.13 thick
lsdo1.14 nwords
lsdo1.15 forient
lsdo1.16 maxel
forient $[0] LS-DYNA chosen global orientation
  [1] User orientation for contact surface is used
lsdo13 $[1] Angle change drives refinement
  [2] Total angle change drives refinement
lsdo2 %[dct] Default continuum treatment
  [nadv] Cycles between advections
  [meth] Advection method
  [afac] Smoothing weight (average)
  [bfac] Smoothing weight (volume)
  [cfac] Smoothing weight (isoparametric)
  [dfac] Smoothing weight (equipotential)
  [efac] Smoothing weight (equilibrium)
  [tbeg] Start time for smoothing
  [tend] End time for smoothing
  [aafac] ALE advection factor
  [vfact] Void factor
  [vlimit] Velocity limit
  [ebc] Automatic Euler boundary condition flag
lsdo2.1 lsdo21
lsdo2.2 cyl
lsdo2.3 lsdo23
lsdo2.4 lsdo24
lsdo2.5 fact
lsdo2.6 fact
lsdo2.7 fact
lsdo2.8 fact
lsdo2.9 time
lsdo2.10 time
lsdo2.11 fact
lsdo2.12 fact
lsdo2.13 lmt
lsdo2.14 eulerBC
eulerBC $[0] off
  [1] On, with stick condition
  [2] On, with slip condition
lsdo21 $[1] Lagrangian (default)
  [2] Eulerian
  [3] Arbitrary Lagrangian Eulerian
  [4] Eulerian Ambient
lsdo23 $[1] Donor cell (first order accurate)
  [2] Van Leer + half index shift
  [3] Van Leer (default)
  [4] Donor cell + half index shift
lsdo24 $[-1] turn smoothing off
  [ ] specify weight factor
lsdo24.2 fact