The following information applies to Commands (APDL) objects used with the LS-DYNA solver. When you select a Commands object from the Mechanical user interface, it inserts a Keyword Snippet (LS-DYNA) object into the LS-DYNA system. The use of Keyword Snippet objects is very similar to Commands APDL objects used in the Mechanical APDL solver, but their behavior may differ. This section highlights these differences.

The LS-DYNA solver commands are based on the LS-DYNA language and follow the LS-DYNA syntax. See Keyword and Theory Manuals for a complete list and descriptions of keywords available for use with the LS-DYNA solver.

Input Arguments

As with the Mechanical APDL solver, the LS-DYNA solver accepts up to nine input arguments (see Commands (APDL) Object Properties) per command object. They are available in the Details panel of the Keyword Snippet (LS-DYNA) object under Input Arguments, fields ARG1 to ARG9.

Syntax for Using Parameters Inside Command Objects

Parameters can be referenced anywhere in the input by placing an ampersand ("&") immediately preceding the parameter name. If a minus sign ("−") is placed directly before "&" with no space ("−&") the sign of the numerical value is switched.

Output Parameters: Using Parameters Defined in Solution Command Objects

LS-DYNA does not support Commands (APDL) objects at the Solution level.

Parameters used with the LS-DYNA solver are case sensitive.