Question

where o
4. A mild steel rod Of 20mm diameter and 300 mm long
is enclosed
inside a hollow copper tube
Centrelly
of external
diameter 30mm and internal diameter.
of 25mm. The ends of the tube and rods are
brazed together, and the composite bar is subjectes
axial pull of 40kn. If E-for steel and copper
is 200 GN/m2 and 100 GN/me respectively, find
to an the stresses developed in the rid and tube also find the extension of the rod​

Answer 1

Answer:

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Answer 2

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