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Thickness of 304 stainless sheet to avoid puncture

  1. May 2, 2012 #1
    Designing a cylinder using Stainless Steel 304 and am trying to figure out the minimum thickness of the outer wall of the cylinder to avoid being puncture by a 6in diameter steel bar after falling 1 meter onto the bar.

    Cylinder will weigh approximately 5500kg.
     
  2. jcsd
  3. May 2, 2012 #2
    What is the outer diameter of the cylinder?
     
  4. May 2, 2012 #3
    0.7512 meters
     
  5. May 2, 2012 #4
    What I have right now... is that

    Syp,SS304=206.8MPa

    F=π(.075m)2*206.8E6 = 3.66MN

    and relating that to the current thickness we have at 5cm

    σ=[itex]\frac{3.66MN}{.15m*.05m}[/itex]=488MPa

    And 488MPa < Sut,SS304 with Sut,SS304=517.02MPa

    But I'm pretty positive I'm making some logical error here.
     
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