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Thread: Real life statics question help

  1. #1
    Associate Engineer
    Join Date
    Oct 2016

    Real life statics question help

    Hello all, it has been a while since I took statics, so I am hoping someone can help me out with this real life problem.

    Let's say that I have a curved, solid, cylindrical piece of steel that is about 2 inches in diameter and about 1 foot long. On one side it is attached to something that can be considered as fixed and on the other side, there is a 400 pound weight.

    If I want to add a v-notch to this piece of steel, so that it fractures as the weight bounces up and down, where would be the best place to add the notch? I was thinking the best place would be at the bottom of the curve where both sides start coming back up, but wasn't sure.

    Here's a rough MS Paint picture and a real picture showing said piece of steel. Thank you.

    Links removed...
    Last edited by Kelly_Bramble; 10-04-2016 at 09:32 PM.

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Bold Springs, GA
    Drop box requires an account ... upload images directly to this forum..
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

  3. #3
    Technical Fellow jboggs's Avatar
    Join Date
    Mar 2011
    Myrtle Beach, SC
    Put the notch on the tension side, where it will be the initiator of a crack. That means it goes on the top.

  4. #4
    Join Date
    Nov 2018
    Abu Dhabi
    where it will be the initiator of a crack. That means it goes on the top.

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