A cylindrical steel pressure vessel 400 mm in diameter with a wall thickness of 20 mm, is subjected to an internal pressure of 4.5 MPa.Calculate the transverse stress in steel.

A thick cylinder has an outside diameter of 100 mm and an inside diameter of 60 mm. It is pressurized until internally until the outer layer has circumferential stress of 300 MPa. Calculate the pressure difference between the inside and outside. (Note: Please insert your answer with at least one decimal place. (the answer is in MegaPascal, MPa)

The closed thin-walled tank has an inner radius of r and wall thickness t and contains a gas of pressure of p. The state of stress at point "a" on the surface of the tank is represented by stress components with an unknown stress element rotation angle of 0. Note that, the two normal stress components for x'y' system (note: not xy system!) are known: ox, = 120 MPa and Oy = 180 MPa, but the shear stress component (T,) is unknown. Determine: (1) the principal stresses at point a ; (2) Tx'yı ; (3) rotation angle of 0 . y 180 MPa 120 MPа х 0 = ? a Tyy = ? tank cross section stress state at point a

A water reservoir of 24 m high and 12 m in diameter is to be completely filled with water, find the minimum thickness of the reservoir plating if the stress is limited to 50 MPa.