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Optimum dimension for a cylindrical vessel subject to external pressur

  1. Jan 10, 2014 #1


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    While doing some ASME code calculations for a pressure vessel subject to external pressure I was wondering what'd be the optimum L/D ratio for a vessel that is subject to buckling under external pressure. For a given volume & Pressure.

    Could a general L/D ratio be derived or would it change with scale & imposed pressure. It's hard to use conventional optimization since a lot of the buckling design seems a mix of tables, formulae & charts.

    In general to prevent buckling larger wall thickness helps but on the other hand both small L & D are good. Wondering if L or D dominates. i.e. a long vessel or a shorter stouter vessel.

    Any idea? Of course, this is assuming stiffing rings aren't an option.
  2. jcsd
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