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load limit rule (lemmy.blahaj.zone)

submitted 11 months ago by bbpolterGAYst@lemmy.blahaj.zone to c/196@lemmy.blahaj.zone

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[-] SoonaPaana@lemmy.world 44 points 11 months ago

How to determine the elastic tensor without any FEA tools?

[-] Successful_Try543@feddit.de 26 points 11 months ago

Experiments and theory.

[-] errer@lemmy.world 23 points 11 months ago

Build a bridge and see if it collapses!

[-] Kyyrypyy@lemmy.world 26 points 11 months ago

...and then rebuild it.

I could swear there was a comic strip about this...

[-] Successful_Try543@feddit.de 1 points 11 months ago

That's a valid approach, yet today, experiments are usually on a smaller scale.

[-] Donkter@lemmy.world 21 points 11 months ago

Actually, a bridge like this is generally considered simple enough not to require FEA. Calculating it theoretically using trusses should be enough to make it. I'm sure FEA is still done but only because it's easy and cheap.

[-] bobs_monkey@lemm.ee 9 points 11 months ago

Magic & Voodoo

[-] Successful_Try543@feddit.de 3 points 11 months ago

No, that's the FEA part.

[-] Socsa@sh.itjust.works 1 points 11 months ago

If you have an actual engineering degree then you've done basic forms of these calculations by hand at some point, and have likely written a basic numerical solver in Matlab.