ANALYSIS TYPE

 

There are two types of analysis output:

 

1.     LS-DYNA INPUT FILE

This function outputs analysis results as an LS-DYNA input deck.

 

2.     FULL RUN DYNA

This function outputs an LS-DYNA input deck and submits it to LS-DYNA, which will be running in the background.

 

The user can select the type of analysis output by clicking on the toggle menu.

 

CONTROL PARAMETERS

This function defines the control parameter values for running a stamping simulation using LS-DYNA. The user can edit the parameters by clicking on the CONTROL PARAMETERS icon from the ANALYSIS dialog window. The DYNA3D CONTROL PARAMETER dialog window is shown in Figure 13.1.2.

 

Figure 13.1.2 Control Parameters Dialog Window

 

TERMINATION TIME

Determined by length of motion characteristic curves.

TIMESTEP (DT2MS)

Timestep for mass scaling. Please reference to the LS-DYNA Keyword User Manual, *CONTROL_TIMESTEP for more information.

PARALLEL (NCPU)

This setting allows the user to define the number of processors to be used by the solver.  This function requires PC hardware with multiple processors, a shared memory (parallel process) version of the LS-DYNA solver, and an appropriate license. Please reference the LS-DYNA Keyword User Manual, *CONTROL_PARELLEL for more information.

STATES IN D3PLOT (DPLTC)

This setting allows the user to define the number of evenly spaced frames of data, displayed and animated in ETAPost. Please reference the LS-DYNA Keyword User Manual, *DATABASE_BINARY_D3PLOT for more information.

ADVANCED OPTIONS

HOURGLASS (IHQ)

Optional hourglass force vector modifier. Please reference the LS-DYNA Keyword User Manual, *CONTROL_HOURGLASS for more information..

CONTACT (SLSFAC)

Scale factor for sliding interface penalties. Please reference the LS-DYNA Keyword User Manual, *CONTROL_CONTACT for more information.

CONTACT (ISLCHK)

Initial penetration check in contact surfaces. Please reference the LS-DYNA Keyword User Manual, *CONTROL_CONTACT for more information..

CONTACT (SHLTHK)

Shell thickness considered in SURFACE-TO-SURFACE and NODE-TO-SURFACE contact options.  Please reference the LS-DYNA Keyword User Manual, *CONTROL_CONTACT for more information..

CONTACT (PENOPT)

Penalty stiffness value option. Please reference the LS-DYNA Keyword User Manual, *CONTROL_CONTACT for more information..

TERMINATION (ENDMAS)

Percent change in the total mass for termination of calculation. Please reference the LS-DYNA Keyword User Manual, *CONTROL_TERMINATION for more information..

INTEGRATION (MAXINT)

Number of shell integration points. Please reference the LS-DYNA Keyword User Manual, *DATABASE_EXTENT_BINARY for more information..

OUTPUT TIMES (ENDTIM/DT)

Please reference the LS-DYNA Keyword User Manual, *CONTROL_TERMINATION for more information..

ACCURACY STRESS (OSU)

Global flag for objective stress updates. Please reference the LS-DYNA Keyword User Manual, * CONTROL_ACCURACY for more information..

ACURACY NODE (INN)

Invariant node numbering for shell elements. Please reference the LS-DYNA Keyword User Manual, *CONTROL_ACCURACY for more information..

 

OK - Accepts the control parameters.

DEFAULT - Resets all values to their default settings.

RESET - Resets the last defined setting to its previously defined value.

ADVANCED - Extends the table to make the advanced control parameters show up.

CANCEL - Aborts the table and resets all values to their previous settings.

 

Note: Refer to the LS-DYNA User's Manual for detailed information about each control parameter.

FLD PARAMETERS

This function allows the user to define the values used to calibrate the FLD display in ETAPost properly.

Figure 13.1.3 FLD Parameters