Capabilities such as the equation of state, strength model and failure/damage model within ANSYS Autodyn can be expanded through the use of user subroutines and user variables. Templates for user subroutines with full documentation of data available in the routine and data to be produced by the user are provided with the standard program. This minimizes the effort to implement new capabilities.
The features of ANSYS Autodyn can easily be extended by user subroutines and user variables. User Variables can be used in post-processing as if they were standard Autodyn variables.
Adding special logic to handle a equation of state (EOS) that is not implemented in Autodyn can be accomplished effectively and conveniently. Numerous other features in the list below can also be implemented by the user. Each User Subroutine is provided with a complete template, including the variables available to the subroutine and which values must be calculated by the user.