A rod of length 40 mm is stretched to make a rod of length 60 mm. It is compressed to make a rod of final length 30 mm. Consider the longitudenal tensile strain as positive and compressive strain as negative.

A rod of length 40 mm is stretched to make a rod of length 60 mm. It is compressed to make a rod of final length 30 mm. Consider the longitudenal tensile strain as positive and compressive strain as negative.

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 3.5.1P: A circular copper bar with diameter d = 3 in. is subjected to torques T = 30 kip-in. at its ends....

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Question

A rod of length 40 mm is stretched to make a rod
of length 60 mm. It is compressed to make a rod of
final length 30 mm. Consider the longitudenal tensile
strain as positive and compressive strain as negative.
Find total true longitudenal strian in the rod.

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