➤ Calculate the maximum allowable pressure
difference allowed between the inside and outside of a sphere
50 mm mean diameter with a wall 0.6 mm thick if the maximum allowable stress is
1.5 MPa. (see solution)
➤ A cylinder is 300 mm mean diameter with a wall 2 mm
thick. Calculate the maximum pressure difference allowed between the
inside and outside if the stress in the wall must not exceed 150 MPa. (see solution)
➤ Find the maximum torsional shear stress in
a solid circular shaft of diameter 10 mm, when the applied torque is 30
N.m. (see solution)
➤ A solid steel shaft in a rolling mill transmits 20
KW at 2 Hz. Determine the diameter of the shaft if the shearing stress
in not to exceed 40 MPa. (see solution)
➤ A shaft of diameter 8 cm is
subjected to a bending moment of 30,000 N-cm and a twisting moment of 40,000
N-cm. The maximum normal stress induced in the shaft is equal to? (see solution)
➤ The ratio of bulk modulus to Young
modulus for a Poisson’s ratio of 0.25 will be? (see solution)
➤ The ratio of shear modulus to the
modulus of elasticity for a Poisson’s ratio of 0.4 will be? (see solution)
➤ A circular shaft can transmit a
torque of 5 KN-m. If the torque is reduced to 4 KN-m, then the maximum value of
bending moment that can be applied to the shaft is? (see solution)
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