1.75" .120 hrew tube deflection
1.75" .120 hrew tube deflection
(OP)
I'm new to the site and was hoping someone could help me. I'm in the process of building a project and need some help. I'm using 1.75"hrew .120 wall. It will be attached on both ends and the center will have a 4" mounting surface that a winch will be mounted on for lifting small loads. Can anyone help me figuring out how much weight this will safely lift and how much it will "bow" under load. It will be welded on both ends and the weight hanging from center. Thank you in advance.






RE: 1.75" .120 hrew tube deflection
ew = electric welded, I think, which has no effect unless it fails
So you've got a tube, supported, maybe fixed, at both ends,
and loaded at the center if you just hang a hook there,
or maybe loaded at two places near the center if you mount the hoist with some kind of bracket; maybe that's the 4 inches.
Get out your Machinery's Handbook. If you don't have one, buy one, and never lend it.
Find I for a tube with your dimensions.
Find deflection for the load case you have given,
using
3629 ksi for E(that's not the same thing as the yp, despite the units)and the I you have calculated,and an arbitrary load plus the weight of the hoist.
Find stress for that same condition. If the stress exceeds yp, change something and recurse.
Mike Halloran
Pembroke Pines, FL, USA
RE: 1.75" .120 hrew tube deflection
E of steel is about 29000 ksi.
RE: 1.75" .120 hrew tube deflection
ColeHous, Hokie is right.
Thank you, Hokie.
Mike Halloran
Pembroke Pines, FL, USA
RE: 1.75" .120 hrew tube deflection
_____________________________________
I have been called "A storehouse of worthless information" many times.
RE: 1.75" .120 hrew tube deflection