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*DATABASE
*DATABASE_BINARY_OPTION
Options for binary output files with the default names given include:
D3PLOT
D3THDT
D3DRLF
D3DUMP
RUNRSF
INTFOR
XTFILE
Dt
for
complete
output
states.
See
also
*DATABASE_EXTENT_BINARY.
Dt for time history data of element subsets. See *DATABASE_HISTORY.
Dynamic relaxation database. Define output frequency in cycles.
Binary output restart files. Define output frequency in cycles.
Binary output restart file. Define output frequency in cycles.
Dt for output of contact interface data (file name must be given).
Flag to specify output of extra time history data to XTFILE at same time as
D3THDT file. The following card is left blank for this option.
The D3DUMP and the RUNRSF options create complete databases which are necessary for
restarts, see *RESTART. When RUNRSF is specified, the same file is overwritten after each
interval. When D3DUMP is specified, a new restart file is created after each interval. When
D3DUMP is specified, a new restart file is created after each interval, thus a “family” of files is
created numbered sequentially D3DUMP01, D3DUMP02, etc. The default file names are RUNRSF
and D3DUMP unless other names are specified on the execution line, see the INTRODUCTION,
EXECUTION SYNTAX. Since all data held in memory is written into the restart files, these files
can be quite large and care should be taken with the D3DUMP files not to create too many.
The D3PLOT, D3DRLF, and the INTFOR files contain plotting information to plot data
over the three dimensional geometry of the model. These databases can be plotted with LSTAURUS. The D3THDT file contains time history data for element subsets as well as global
information, see *DATABASE_HISTORY. This data can be plotted with LS-TAURUS in Phase 2.
The default names for the D3PLOT, D3DRLF, and the D3THDT files are D3PLOT, D3DRLF, and
D3THDT. For INTFOR a unique name must be specified on the execution line with S=iff, (iff=file
name), see the INTRODUCTION, EXECUTION SYNTAX. The file structure is such that each
file contains the full geometry at the beginning, followed by the analysis generated output data at the
specified time intervals. The default file size of 7000000 octal words may be much to small to hold
one complete output state when models are very large, and an excessive number of files may be
created. The limit of LS-DYNA3D to create files is 99 family members. Therefore, it is
recommended that the file size be adjusted on the execution line with the X=scl (scl is a scale factor
to enlarge the family member size). For the contents of the D3PLOT and D3THDT files see also
the *DATABASE_EXTENT_BINARY definition. It is possible to severely restrict the information
that is dumped and consequently reduce the size of the databases. The contents of the D3THDT file
8.4 (DATABASE)
LS-DYNA3D Version 936