OpenSees 2.4.0 Released
Version 2.4.0 of the OpenSees binary is now available for download. Here is the change log.
Discovering OpenSees
The next seminar in the web-based Discovering OpenSees: Surfing the waves of OpenSees learning series will occur March7. The session will be broadcast twice at times that will allow users in all time zones around the world to participate. This session is titled: Conducting Hybrid Simulations with OpenSees/OpenFresco and will occur on March 7'th at 9.00 AM and again at 5.00 PM Pacific Time.
OpenSees Days 2012
The material for OpenSees Days 2012 workshop can be found here . Videos of the workshop are being prepared and will be posted when finished.
OpenSees Challenge 2013
This year we will be awarding two prizes:
  • an iPod to the developer of the best OpenSees powered tool added to NEEShub between the OpenSeesDays 2012 and the OpenSees Days 2013 events.
  • an iPod to the developer of the best new code development submitted to OpenSees between the OpenSeesDays 2012 and the OpenSees Days 2013 events.
Rules & conditions.
OpenSees Days Italy 2012
OpenSees team members presented at OpenSeesDays, Rome, Italy on May 24-25 2012.
OpenSees in the Clouds!
OpenSees is now available for use to all on NEEShub through the OpenSeesLab tool. For those of you with large models or many runs to perform, the machines on which this tool runs is very very very fast.

I have posted a YouTube video showing how to perform an OpenSees simulation using this tool. An improved version will be available soon. The OpenSees GUI applications, BuildingTcl and OS Navigator, are also available to run.

Try them out, registration and use of the machines are free!

Welcome
Welcome to the website for OpenSees, a software framework for developing applications to simulate the performance of structural and geotechnical systems subjected to earthquakes.

The goal of the OpenSees development is to improve the modeling and computational simulation in earthquake engineering through open-source development.

OpenSees is under continual development, so users and developers should expect changes and updates on a regular basis. In this sense, all users are developers so it is important to register. More information on Open Source is available.

The development and application of OpenSees is sponsored by the Pacific Earthquake Engineering Research Center through the National Science Foundation engineering and education centers program.

OpenSees has been selected as the simulation component for the George E. Brown, Jr. Network for Earthquake Engineering Simulation and is being sponsored by NEEScomm . NEEScomm provides support for the ongoing maintenace of OpenSees and support to integrate OpenSees with the IT and EOT resources that NEEScomm makes available to the earthquake engineering community.

More info...