force required to bend channel shaped fixed beam
force required to bend channel shaped fixed beam
(OP)
Needing assistance to calc the force needed to bend channel shape beam by 4mm beam with fixed centre load across the two channel
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force required to bend channel shaped fixed beam
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RE: force required to bend channel shaped fixed beam
This looks like a cantilever beam. Is it really that difficult? Perhaps you should clearer about your question.
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JHG
RE: force required to bend channel shaped fixed beam
RE: force required to bend channel shaped fixed beam
1) plastically deform the channel ? or
2) just have it deflect 4mm.
if 2), the problem is trivial (simply supported beam)
if 1) the problem is so non-trivial that it'd be hard to discuss here without 1000 posts.
but, as noted above, with dim'ns, materials, etc we can't even guess.
another day in paradise, or is paradise one day closer ?
RE: force required to bend channel shaped fixed beam
Cheers
Greg Locock
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RE: force required to bend channel shaped fixed beam
How can we help you without some dimensions of the beam or forces, a 4mmm deflection is quite a large but depending on the beam length and section at this stage we can't tell whether it's in a plastic or elastic region of stress.
RE: force required to bend channel shaped fixed beam
thanks for feed back. I am after a formula to find what force (F) the beam can withstand before plastic deformation and what force (F) caused it to bend by 4 mm.
It's a fully FIXRED beam fixed both ends, the difficulty for me is that its not a normal square beam it's a channel section.
RE: force required to bend channel shaped fixed beam
RE: force required to bend channel shaped fixed beam
like above if you can solve a rectangular section, and you know the general equations at work then you should be able to adapt them for a channel.
your beam does have a couple of interesting features, like ...
1) the stress concentration of the cut-out (the U-shaped notch) and in compression at that, and
2) the compression allowable of the standing legs (their allowable is probably not fcy).
i think the critical failure mode will be the legs splaying out, deflecting out of plane.
show us you know something that can be found in a strength of material text, and we'll probably help with the rest.
we like to help; we (well, i at least) don't like to spoon-feed.
another day in paradise, or is paradise one day closer ?