lamartayo lamartayo

20-12-2022
Engineering

Answered

Question One
A mild steel rod of 30 mm diameter and 400 mm long is encased centrally inside a hollow copper tube of
external diameter 40 mm and inside diameter 35 mm. The ends of the rod and tube are rigidly attached
and the composite bar is subjected to an axial pull of 45 kN. If E for steel and copper are 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.

Answer :

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