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Old 01-29-2011, 04:44 PM   #338
Drunken Squirrel
EnderTheX's Avatar
Joined: Mar 2009
Location: DFW Area, TX
Oddometer: 2,774
Originally Posted by Bayner View Post
Strange it sheared right there, and not at the bolt hole...

Not strange at all... The sharp corner on the bar is a giant stress concentration and a great place for a fatigue crack to start. While holes also exhibit these qualities they do much better than sharp corners. (Trust me, I studied fracture mechanics, the most common methods of introducing a crack into a sample coupon is to machine a 90 deg sharp corner into it)

Like John suggested a sleeve with new holes and removing that whole mid section crap should be strong enough to keep going.
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