4. A 3-m long tube with a cross section shown carries atorque T. (a) Compute the torsional stiffness k = T/eof the tube. (b) If the tube is twisted through 10 °,determine the shearing stress at points a and b. UseG = 70 GPa and neglect stress concentrations at thecorner.2 mm4 mmb40 mm55 mm4 mm55 mm

Torque: - It is defined as the force which has tendency to rotate the body about axis of rotation.

Answered: (a) Compute the torsional stiffness

Engineering

Civil Engineering

(a) Compute the torsional stiffness

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

4. A 3-m long tube with a cross section shown carries a
torque T. (a) Compute the torsional stiffness k = T/e
of the tube. (b) If the tube is twisted through 10 °,
determine the shearing stress at points a and b. Use
G = 70 GPa and neglect stress concentrations at the
corner.
2 mm
4 mm
b
40 mm
55 mm
4 mm
55 mm

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