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Old 09-29-2008, 04:00 PM
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Question How Much force does it take to do this?

I can tell you how it happened but I would like to know if there is a way to put a number on how much it took to do it?

There was no heat applied.

Any & all comments are appreciated


Rob

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Old 09-29-2008, 07:04 PM
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Insert jaw-drop smiley here.....


You'd be surprised at how little pressure it would take in the right circumstances. However, what I'd like to see is how those two pieces are welded together (manufacturing techniques and what for a welder/ wire/rod were used). To me, that's the impressive part.


In a while, Chet.
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Old 09-29-2008, 07:30 PM
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I am trying to remember where/when I bought that one.


When towing anything really heavy I use the solid insert one I have not used the torsion bars that go with it yet.

I was hoping someone with engineering knowledge can tell me it took X tons of force to do that.

Not that I don't appreciate your comment

So I will *** in all the other factors to the equation's.

As best to my knowledge

a 70 year old lady in a 95 cougar red was traveling about 50 MPH when it struck a 85 F250 green with a Tommy lift & reading work box on the back ,then that truck struck a 5x10 trailer that was attached to that insert .

@ the time of that impact the truck to that insert was starting to accelerate approximately 3 turns {burn out turns} sent the truck into a jack knife trailer hanging by the safety chains.

So thats the story .

I wonder if there is a scale that could be put in between that & a press to measure how much it would take to put it back?

The Information would be very helpful to try to make people who know little of such things grasp this fact.

Does this make any sense?




R
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Old 09-30-2008, 08:24 AM
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You could put that bend cold in a piece of 1/2" x2 1/2" with a 10 lb hammer and a good vice or straighten it the same way.
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Old 10-01-2008, 12:07 AM
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Thats what 1/2 inch by how many inches? 3? Giving it a cross sectional area of 1.5 square inches. We'll say its 1020 Annealed (weakest of the carbon steels and cheapest) so its got a yeild strength of around 43000 psi. We will say the force is acting 2 inches from where it bent. 64 500lbs right near where it bent. Minus some for the concentration of stress for the bend. Moving it the 2 inches out due to the extra leverage will be like 16 125 lbs?

Again I'd estimate less than that. Also thats for static load. With shock and repeated loading like a trailer sees I'd say its more like 8 000-10 000 lbs.

Thats just a guess though

A very rough one
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