Initialise in Ansys LS-DYNA

Initialise in Ansys LS-DYNA

You can choose to Initialise the PRIMER model in the session via the " Initialise in Ansys LS-DYNA " option under " Ansys LS-DYNA Results ".
The model initialisation in Ansys LS-DYNA happens via the "Ansys LS-DYNA submission" tool tool in PRIMER by pressing the Submit button.
The "Ansys LS-DYNA Directory" is taken from the "Submit Directory" path from the "Ansys LS-DYNA Submission" panel.
After the model is submitted to Ansys LS-DYNA, PRIMER monitors the Ansys LS-DYNA job progress:

• After the Ansys LS-DYNA run is terminated, PRIMER automatically updates this panel with a list of the Ansys LS-DYNA output files.

You can choose the types of files to read and check from the options in the "Output Categories" section.
After the Ansys LS-DYNA directory is populated these Ansys LS-DYNA output files with a will be listed and automatically selected for viewing in the tree view.

• Log files: filenames of the format *.otf, d3hsp or mes****
• Contact, Load profile files: filenames with extensions *.csv, *.xy
• Decomposition files: filenames with extensions *.ses

Once the Apply button has been pressed PRIMER will open the "Ansys LS-DYNA output tree viewer" and this will display all the errors/warnings and profiles/decomposition information - prepared from the Ansys LS-DYNA output files associated with the input model.

The Ansys LS-DYNA submission can be modified using the Initialisation Options on this panel.
Initialising the model with the Decomposition option will do the following upon the Ansys LS-DYNA submission:

1. "Temporarily" add these keywords to the PRIMER Model
   • CONTROL_MPP_DECOMPOSITION_FILE
   • CONTROL_MPP_DECOMPOSITION_NUMPROC
   • CONTROL_MPP_DECOMPOSITION_OUTDECOMP
2. Re-write the model file in the "Submit Directory" specified on the Ansys LS-DYNA Submission panel.
3. Submit the re-written model file for Ansys LS-DYNA initialisation.

The "number of processors" for decomposition can be specified using the NUMPROC input.
You can choose to initialise in Ansys LS-DYNA using the MCHECK or NCYCLE option.

• Initialising with MCHECK does not consume an Ansys LS-DYNA server license, but a special license option of LS-DYNAMC is required in the Ansys LS-DYNA server license file
• You can perform initialisation using NCYCLE=1 , which is similar to performing "MCHECK" initialisation.
  This does consume a license and is perhaps appropriate for local submissions using node-locked licenses

Ansys LS-DYNA Submission Tool

The Ansys LS-DYNA initialisation can only be done using the "Ansys LS-DYNA submission" tool on the same (LOCAL) machine from where PRIMER is launched.

1. Ansys LS-DYNA initialisation requires an Ansys LS-DYNA license on the local machine.
2. The Ansys LS-DYNA model submission can be modified via the options in the "Ansys LS-DYNA Submission" panel.
3. Advanced Ansys LS-DYNA options can be changed via the sub-panel launched by pressing More Options button.
4. Input/Output file options for Ansys LS-DYNA submission can be changed via the sub-panel launched by pressing Optional Files buttons.
   • Please Note: The NCYCLE and MCHECK options on this panel are overridden by the related "Initialisation options" in the "Read DYNA" tool.

Ansys LS-DYNA Monitor

• After the PRIMER model is submitted to Ansys LS-DYNA, PRIMER monitors the Ansys LS-DYNA run progress and updates the Ansys LS-DYNA Job Monitor panel.
• After the Ansys LS-DYNA run has terminated, PRIMER automatically updates the "Read DYNA" panel with the output files.
• The "Read DYNA" panel with output files, can also be mapped from the job monitor panel after the Ansys LS-DYNA job is terminated using the Choose Action->Check Ansys LS-DYNA Results menu button.