clamping
clamping
(OP)
I am trying to calculate the stresses developed in a lug which is CLAMPED, on one side, to another bar (not the classic fork-knife way). My problem is that without introducing the clamping into the calculation I am being too conservative, and the stresses I calculate due to the moments (since it is a single side clamp) are extreemly high. I know that what I get is actually not true or physical but I have no knowladge of how to introduce the clamping into the calculation.
Anyone can hint me?
Thanks
xd
Anyone can hint me?
Thanks
xd





RE: clamping
RE: clamping
are you loading the lug along the axis of the bolt, which would mean transferring load via friction, or across the lugs so you want both lugs to react the applied bending moment together ?
assuming its the latter, you're probably right in that visualising the stress field, it's probably way conservative to have the two lugs reacting the moment independently ... and visualising the stress field it looks very odd (you'd have have compression on one lug adjacent to tension on the other). if the lugs are clamped together then i think it's reasonable that they work together (bending across the combined thicknesses of the lugs). try and draw a free body diagram of the lugs ... what sort of "heel-and-toe" forces would be required ? are the implied tension forces reasonable compared with the preload on the bolt ? probably it makes sense to assume the neutral axis is on the parting plane (between the two lugs) ?
good luck
RE: clamping
RE: clamping
RE: clamping
RE: clamping
RE: clamping