[kragen]

https://www.youtube.com/watch?v=WwgrAH-IMOk

I feel like I don't really understand his explanation, because it's kind of vague. But I think that might be because you've seen the equations dozens of times, and I haven't seen them at all, so you were prepared to understand the video.

[praptak]

This makes sense. As said, it was about connecting the dots for me. Also, I don't even claim I fully understand FEM (or even Galerkin), it's just my hobby project.

[kragen]

That sounds interesting! What are you doing with it?

[praptak]

I just want to understand the magic behind static stress analysis. More generally I'm interested in emulating physics behind the rigid body model.

Maybe I will create a game prototype based on the mechanics but this is just a vague idea.