PRIMER 22.1

Conversion Between the Formats of Different Ansys LS-DYNA Versions

Writing out "higher order" decks in "lower order" format, for example a LS960 deck in LS950 format is legal, and has the following consequences:

Where higher order data can be converted to lower order without loss of information this is done silently.
Where no lower order version exists the data (fields or whole cards) are omitted, and a warning notice is printed.

As a general rule writing out a higher order deck from a lower order file (eg read LS960, write LS971) works without losing information, but there are a few cases where keywords have changed during Ansys LS-DYNA development, meaning that the result may not be functionally identical.

While we have made every effort during VERSION conversion to detect and process changes between the different Ansys LS-DYNA file formats, we cannot guarantee that we have found every one. Moreover running the same analysis in different versions of LS-DYNA may give different answers due to changed parameters within the Ansys LS-DYNA code.

It is your responsibility to ensure that your analysis is correct.

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