A solid circular bar of diameter d= 50 mm is twisted in a testing machine until the applied torque reaches the value of T=500 Nm. At this value of torque, a strain gauge oriented at 45° to the axis of bar gives a reading ɛ = 316.2 x 106. The shear modulus G of the material in GPa is Strain gage d = 50 mm T= 500 N m T 45

A solid circular bar of diameter d= 50 mm is twisted in a testing machine until the applied torque reaches the value of T=500 Nm. At this value of torque, a strain gauge oriented at 45° to the axis of bar gives a reading ɛ = 316.2 x 106. The shear modulus G of the material in GPa is Strain gage d = 50 mm T= 500 N m T 45

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

A solid circular bar of diameter d= 50 mm is twisted in a testing machine until the applied torque
reaches the value of T=500 Nm. At this value of torque, a strain gauge oriented at 45° to the axis of bar
gives a reading ɛ = 316.2 x 10-6. The shear modulus G of the material in GPa is
Strain gage
|d = 50 mm
T= 500 N'm
T
45°
mim

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