A mild steel rod of 25 mm diameter and 400 m long is encased centrally inside a hollow copper tube of external diameter 35 mm and inside diameter 30 mm. The ends of the rod and tube are rigidly attached, and the composite bar is subjected to an axial pull of 40 kN. If E for steel and cooper is 200 GN/m2 and 100 GN/m2 respectively, find the stress developed in the rod and the tube. Find also the extension of the rod.

A mild steel rod of 25 mm diameter and 400 m long is encased centrally inside a hollow copper tube of external diameter 35 mm and inside diameter 30 mm. The ends of the rod and tube are rigidly attached, and the composite bar is subjected to an axial pull of 40 kN. If E for steel and cooper is 200 GN/m2 and 100 GN/m2 respectively, find the stress developed in the rod and the tube. Find also the extension of the rod.

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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