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Is there a formula for the burst working pressure of a spherical pressure vessel that takes into account its material peoperties? It should be noted that this is not a concentric sphere design (it has only one radius) .This is a formula for a pipe: http://www.engineersedge.com/calculators/pipe_bust_calc.htm

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For spheres,stresses in the material is same in all directions.So ,hoop stress and longitudinal stresses are the same. Using similar abbreviations, as P for pressure(gauge) inside sphere ,FS for factor of safety,S for allowable stress and additionly Ri for inner radius,Ro for outer radius P(gauge pressure)=((Ro^2-Ri^2)×S)÷((Ri^2)×FS) For calculation of brusting pressure,take S as ultimate stress for a given material and put FS=1

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  • $\begingroup$ What if the sphere is nonconcentric (as in it has only one radius)? $\endgroup$
    – Hypnos Stratagem
    May 27, 2017 at 1:03
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    $\begingroup$ Use the thickness of the thinnest section as a first approximation $\endgroup$
    – Solar Mike
    May 27, 2017 at 5:15

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