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Bearing stress

  1. May 4, 2016 #1
    For a hollow tube inside a hollow tube, with a pin passing through both and a force pushing down on the innermost tube, what would the bearing stress be on the holes (assuming tube wall thickness is equal)? Would the equivalent reaction force be F/4 since the pin is passing through 4 holes? So for example, say this is a jack stand with a 36,000 pound load on it. Would the bearing stress for each hole then be, 36,000/4 = 9000. Then bearing stress = F/td ? 9000/td Where t is wall thickness of tube and d is hole diameter?
     
  2. jcsd
  3. May 4, 2016 #2

    Nidum

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    No - it's F/2 for each hole .

    Think of the pin as a simple beam with two applied loads and two reaction loads .
     
  4. May 4, 2016 #3

    Nidum

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    Pin Loads.jpg
     
    Last edited: May 4, 2016
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