OpenRadioss is gone, and the repository was deleted, not archived
Four years after Altair open-sourced its crash-simulation solver, Siemens says it is consolidating efforts into Simcenter, and the GitHub repository has simply been removed.
1 story on this subject, newest first.
Four years after Altair open-sourced its crash-simulation solver, Siemens says it is consolidating efforts into Simcenter, and the GitHub repository has simply been removed.