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## A spherical pressure vessel (made of mild steel) of internal diameter 500 mm and thickness 10 mm is subjected to an internal gauge pressure of 4000 kPa. If the yield stress of mild steel is 200 MPa, the factor of safety (up to one decimal place) is ______

## Gate Productivity Engineering

Asked On2019-04-07 17:02:48 by:Rohit498

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Download question setAnswersGiven :d = 500 mm, t = 10 mm, p = 4000 kPa, σy = 200 MPa

σh = Pd/4t = 50000kPa

σy = 200 MPa = 200 × 10^3 kPa

FOS = σy/σh = 200000/50000

Therefore Factor of Safety = 4

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