Answered: Diameter of shaft based on Strength…

Diameter of shaft based on Strength design is in mm Diameter of shaft based on rigidity design is in mm The sutable Diameter of the shaft is in mm The maximum shear strain is

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.3.12P: A propeller shaft for a small yacht is made of a solid steel bar 104 mm in diameter. The allowable...

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Concept explainers

Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.

Question

A solid shaft is subjected to a twisting moment of 150 kNm. If the angle of twist is 8º per meter of the shaft and the shear stress is not to exceed 550 MPa. Determine the suitable shaft diameter by comparing the strength design and rigidity design. Also, determine the maximum shear strain acting on the shaft. Take G 250 GPa.

Diameter of shaft based on Strength design is in mm

Diameter of shaft based on rigidity design is in mm

The sutable Diameter of the shaft is in mm

The maximum shear strain is

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