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Cantilever square tube capacity

  1. Nov 15, 2009 #1
    Hello everyone. I have a need concerning a project I'm building. I need to know, or need to know how to calculate the maximum uniform load on a single cantilever of A36 steel tube. It is solidly attached at one end and extends out 42". The material will be one of the following:
    1) 2"x2"x 1/4" sq. tube
    2) 3x3x 1/4" sq. tube
    3) 2"x4" x 1/4" rect. tube
    (4" wide by 2" tall, I know it's much stronger the other way but that isn't an option)

    I'm not sure how to figure out the capacity of each material in the given situation. Any advice is greatly appreciated.
    Thanks
    -Jake
     
  2. jcsd
  3. Nov 17, 2009 #2

    stewartcs

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    Science Advisor

    Take a look through Roark's. It has the equations you need for cantilevered beams. Then determine the max stress and ensure it is less than your allowable.

    CS
     
  4. Nov 17, 2009 #3
    Ok, cool. Thanks!
     
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