Direct Shear vs. Moment Load
Direct Shear vs. Moment Load
(OP)
I have a pinned joint where one part can rotate about a pin fixed on one end (cantilever). The pin is 1" diameter and the gap between parts is approx. .1". I know that if there was zero gap between the two parts, I could treat the loading on the pin as direct shear (similar to a bolted connection in shear). Does anybody know how big the gap would have to be so that the loading would change from a direct shear loading to a cantilever (moment) load.
TIA,
Kirk
TIA,
Kirk





RE: Direct Shear vs. Moment Load
once there is a gap this rotation constraint is released, and the pin bends (albeit with a fixed end, like a cantilever).
i guess the conservative ("lazy") approach would be to consider the pin to be a beam, and if it works great. if you need to "sharpen the pencil", then you might need to look into contact between the pieces, which would prevent relative rotation.
RE: Direct Shear vs. Moment Load
ZCP
www.phoenix-engineer.com
RE: Direct Shear vs. Moment Load