Event Series

The event series functionality in Abaqus/Standard allows you to define fields that vary with time and space (event series) and to provide access to them from user subroutines UMDFLUX and UEPACTIVATIONVOL. During the analysis, you can access only a slice of event series data, where a slice is a series of events from a current time increment. The utility routines that can be invoked to query or access the data are described in Accessing Abaqus Event Series Data. Examples of using event series functionality to specify raw material deposition and moving heat source for additive manufacturing process simulation are presented in Special-Purpose Techniques for Additive Manufacturing.

To define an event series, you must first declare the type of the event series, which determines the number of fields to include in the definition. The time and space variation of these fields are specified in tabular form as a list of discrete events corresponding to increasing values of time. In general, Abaqus does not make any assumptions about how the fields vary between discrete events (no interpolation of the data is performed); the interpretation of the discrete events is determined by the user.

The type and event series definitions have a global scope and must be unique for the model. By default, the time of events is assumed to be the step time, but you can define events using the total time instead. See Conventions for a discussion of these time measures.

To read event series data from a SIM database file, you must specify the name of the file. The SIM file must contain the complete definition of the event series, including the type declaration. You do not need to specify the file extension. By default, Abaqus uses the name of the event series from the SIM database, but you can modify this name.

The event series data can be contained in a separate input file (see Input Syntax Rules).

You can modify the position coordinates in the event series by specifying a translation and/or rotation for events relative to the origin of the global coordinate system.