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Tensile stress

  1. Dec 17, 2007 #1
    how to determine the tensile stress placed on the skin of a pressurized sphere
     
  2. jcsd
  3. Dec 17, 2007 #2

    Astronuc

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    Staff: Mentor

    Does one wish the thin wall approximation or the formula for the thick wall?
     
  4. Dec 17, 2007 #3
    any?
     
  5. Dec 17, 2007 #4

    Astronuc

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    Staff: Mentor

    s = (p r)/(2 t), where s is the tensile hoop stress, p is the differential pressure across the membrane (assuming internal pressure is much larger than external pressure), r is the mean wall radius, and t is the membrane thickness.

    I would recommend one learn to derive the thick member stress formula from which the thin membrane can then be derived.

    Of course, one can look in many engineering books on pressure vessels or strength of materials and find the basic formulae.

    Consider purchasing - Schaum's Outline of Theory and Problems of Strength of Materials
     
    Last edited: Dec 17, 2007
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