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hdrz
Until recently it was under AGPL. It was open sourced in 2022, and now siemens bought altair (the company who developed it for many years) and closed it again. Some of us cared and contributed, and now it’s gone… Maybe this can continue under another name using the last source release?
diggernet
Looks like they've made https://github.com/OpenRadioss/OpenRadioss private to make that harder to do. But hopefully someone out there has a recent clone of the repo.
puetzk
If you know when it was deleted, you should be able to find the last-pushed hashes in https://www.gharchive.org/, and then can likely still fetch those hashes via any surviving fork - even if it doesn't look up-to-date (since github commingles the actual pack storage underneath forks).
CBLT
> Some of us cared and contributed

Under a CLA.

jacquesm
I hope someone still has a copy and can put it up on github. Siemens just gained themselves a place on my shitlist for this action and I sincerely hope the industry will call them out for it.
kragen
It looks like there are some AGPL copies on Software Heritage, such as https://archive.softwareheritage.org/browse/origin/directory..., which mysteriously has gone missing from GitHub itself.

There are a few different open-source finite element solvers available, but I don't know enough about them to know what their strengths and weaknesses are. Coincidentally, over the last day, I've been vibecoding a multiphysics engine for sand battery design...

jacquesm
Some of these are still alive:

http://web.archive.org/web/20251202100620/https://github.com...

kragen
I tried half a dozen from the list you found, and https://github.com/AxelHaenschke/OpenRadioss was the only one that showed up, and it seems to have some updates from a couple of months ago. I've put a copy up at http://canonical.org/~kragen/sw/OpenRadioss.git. You should be able to clone it from there in about 30 seconds, but be aware it's 176 megs.
jacquesm
Yes, apologies, I had something a lot more urgent to do but still made the time to dig up the info and post the link. You're welcome.
nejch
As a Siemens employee this is so sad to watch. Some of us have been pushing hard for more open source culture at the company and it's disheartening hitting setbacks like this.

Anyways.. here's a supported open source fork already. Didn't take long: https://opencourant.org/ https://github.com/OpenCourant/OpenCourant/

hdrz
I am very happy to see this, a continuation under the stewardship of rocky linux. I really hope it takes off and continues with force and velocity… I intend to help if I can.