This is a very old document, which one cannot provide/get since it does not exist in that form , and since we can not share this information in the forum.
See the help manual for some info on this (AUTODYN theory/Explicit Dynamics which uses the AUTODYN solver):
Chapter 5: Explicit Dynamics Theory Guide
Chapter 5: Explicit Dynamics Theory Guide (ansys.com)
You are navigating away from the AIS Discovery experience