Max Moment and Shear On axle

[lewis]

If you can't tell this is a front axle. What I am trying to find out is where is the greatest moment and max shear. I plan on drilling a hole in the webbing where the red dot is and am just curious on what efect this will have.

 

[gijohn40]

how big is the webbing and how big a hole are you going to drill?

 

[cruiseroutfit]

Been a couple of years since I've done a FBD, when I was doing them it was by the dozens

That one would take more information than you've provided, a simple beam with a uniform or even non-uniform but stated beam is one thing, but an axles max sheer and your diagrams max shear won't be the same. An axle has welded tubes and a cast differential that are going to have far different material properties than an axle tube, even to treat it as a simple beam one would need some dimensions

 

[RockMonkey]

FWIW, I did that on my first build and ran the axle for years with no problems. As far as I know, it's still like that under my buggy wherever it is. I started with a hole and ended up with a notch. I wouldn't do it again though.

 

[Tacoma]

redrilling a Ford axle to get rid of the goofy u-bolt clamp thingamajig????

 

[lewis]

when I was doing them it was by the dozens

Ya been there as well. Although I can't rememeber very much. I do rememeber though a beams greastest moment when attached at both ends was usually about 1/3 of the way across and the max shear was towards the center of the beam but that is with a distributed load.

 

[lewis]

FWIW, I did that on my first build and ran the axle for years with no problems. As far as I know, it's still like that under my buggy wherever it is. I started with a hole and ended up with a notch. I wouldn't do it again though.

Would you do then to get rid of it. Are you talking about the notch or the drill or both that you wouldn't do again?

 

[cruiseroutfit]

Ya currently doing that right now, except I am not catching on.

School/work or just for fun?

 

[lewis]

oh and here is some dimensions.

 

[lewis]

School/work or just for fun?

School, only been at it for 6 years so things are fuzzy cause its been so spread out.

 

[cruiseroutfit]

LOL, I better go get my statics & strengths book off the shelf

 

[cruiseroutfit]

School, only been at it for 6 years so things are fuzzy cause its been so spread out.

Doing engineering degree? Civil? Mechanical? Structural? Where at?

 

[lewis]

LOL, I better go get my statics & strengths book off the shelf

I was going there next just didn't want to crack it open.

 

[BlackSheep]

oh and here is some dimensions.

I think that is the shortest axle I have ever seen - are you building a remote control crawler?

 

[lewis]

It will be the shortest dana 60 ever. The dimensions are scaled down cause the actual length doesn't really matter.

 

[RockMonkey]

Would you do then to get rid of it. Are you talking about the notch or the drill or both that you wouldn't do again?

Wouldn't do either. The hole was too hard to thread the U-bolt through, hence the notch. I'm not sure what I would do instead. I'd have to take a good long look at it, and see what other people have done. It worked fine and never hurt anything. Still kinda sketchy though.

 

[lewis]

Wouldn't do either. The hole was too hard to thread the U-bolt through, hence the notch. I'm not sure what I would do instead. I'd have to take a good long look at it, and see what other people have done. It worked fine and never hurt anything. Still kinda sketchy though.

Ya that is why I hesitate to do it.