Q6. A hollow circular shaft has an external diameter of 120 mm and the internal diameter is three-fourths the external diameter. If the stress at a fibre inside is 36 MPa, due to a torque T applied, find the maximum shear stress, and the angle of twist per unit length. G = 85 MPa.

Q6. A hollow circular shaft has an external diameter of 120 mm and the internal diameter is three-fourths the external diameter. If the stress at a fibre inside is 36 MPa, due to a torque T applied, find the maximum shear stress, and the angle of twist per unit length. G = 85 MPa.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter5: Stresses In Beams (basic Topics)

Section: Chapter Questions

Problem 5.5.9P: A seesaw weighing 3 lb/ft of length is occupied by two children, each weighing 90 lb (see figure)....

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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

Fill in the blanks:
Q6.
A hollow circular shaft has an external diameter of 120 mm and the internal diameter is three-fourths the external diameter. If the
stress at a fibre inside is 36 MPa, due to a torque T applied, find the maximum shear stress, and the angle of twist per unit length. G =
85 MPa.
ANS:
IMAX =
N-m (whole number)
deg/m (2 decimal places)

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