Enter the design pressure of the pressure vessel, in the displayed units. Use a design pressure applicable to the following pressure stress equations:
Longitudinal Stress = Pressure * Inside Radius2/(Outside Radius2 - Inside Radius2)
Hoop Stress = 2.0 * Longitudinal Stress
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The design pressure is used to calculate membrane stresses on the nozzle and vessel wall and axial pressure thrust.
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For a spherical vessel, the same longitudinal stress equation is used for membrane stress due to internal pressure.