# User Manual

This is the Aria User Manual Version 5.28. Use the navigation on the left to explore different topics, or use the search to quickly find content. If you have any feedback/questions, please contact us via the TF Teams channel or send an email to sierra-help@sandia.gov. For information specific to the export controlled Arpeggitar manual, see its user manual.

The structure of the manual is as follows:

Aria Overview

  An overview of the history, conventions, and philosophy of Aria

Releases & Deprecations

  Release notes and deprecation information for previous and upcoming Aria releases.

Theory

  Details of the theory behind specific capabilities implemented in Aria

Simulation Setup

  Where to find out about specific capabilities and instructions on how to use them

Tutorials & Examples

  Detailed tutorials and examples to help get started

Running & Troubleshooting

  How to run Aria, read the log file, and diagnose issues that may arise

Command References

  Exhaustive list of Aria command syntax for things like material properties, boundary conditions, etc

There is also a `PDF version` of the user manual you can download to save locally or for external distribution, although for internal Sandia use the web version is recommended.