The undersea research vehicle Alvin has a spherical pressure hull 1 m radius and shell thickness of 30 mm. The pressure hull is steel having a yield point of 700 MPa. Determine the depth of submergence that would set up the yield-point stress in the spherical shell. Consider sea water to have specific weight of 10.27 kNper cubic meter

The undersea research vehicle Alvin has a spherical pressure hull 1 m radius and shell thickness of 30 mm. The pressure hull is steel having a yield point of 700 MPa. Determine the depth of submergence that would set up the yield-point stress in the spherical shell. Consider sea water to have specific weight of 10.27 kNper cubic meter