Answered: A solid shaft (100 mm diameter)…

A solid shaft (100 mm diameter) transmits 75 kW at 150 rpm. Determine the value of maximum shear stress set up in the shaft and the angle of twist per metre of the shaft length if G=80 GN/m².

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 3.7.12P

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Concept explainers

Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.

Question

A solid shaft (100 mm diameter) transmits 75 kW at 150 rpm.
Determine the value of maximum shear stress set up in the
shaft and the angle of twist per metre of the shaft length if
G=80 GN/m².

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