A pressurized cylindrical tank with flat ends is loaded by torques T and tensile forces P (see figure). The tank has radius r= 50 mm and wall thickness t = 3 mm. The internal pressure p = 3.5 MPa and the torque T= 450 N·m.
What is the maximum permissible value of the forces P if the allowable tensile stress in the wall of the cylinder is 72 MPa?
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