The shaft of a hand operated wire rope hoist is supported on bearings A and B. The shaft is keyed to the drum of diameter of 200mm and the wire rope is turned around it. A tangential load of 4500 N is applied at the end of the rope. The yield stress for the shaft material is taken as 310 MN/m?. a. Calculate the maximum and minimum principal stresses in the shaft b. Calculate the required shaft diameter d based upon Tresca theory of failure using a factor of safety of 3 c. Determine the factor of safety for the shaft diameter d as obtained in (b) above based upon von-Mises theory of failure. Comment on the value obtained

The shaft of a hand operated wire rope hoist is supported on bearings A and B. The shaft is keyed to the drum of diameter of 200mm and the wire rope is turned around it. A tangential load of 4500 N is applied at the end of the rope. The yield stress for the shaft material is taken as 310 MN/m?. a. Calculate the maximum and minimum principal stresses in the shaft b. Calculate the required shaft diameter d based upon Tresca theory of failure using a factor of safety of 3 c. Determine the factor of safety for the shaft diameter d as obtained in (b) above based upon von-Mises theory of failure. Comment on the value obtained

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.5.11P: The hollow drill pipe for an oil well (sec figure) is 6,2 in. in outer diameter and 0.75 in. in...

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The hollow drill pipe for an oil well (sec figure) is 6,2 in. in outer diameter and 0.75 in. in thickness. Just above the bit, the compressive force in the pipe (due to the weight of the pipe) is 62 kips and the torque (due to drilling) is 185 kip-in. Determine the maximum tensile, compressive, and shear stresses in the drill pipe.
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