Question

A copper rod of 20mm in diameter is enclosed in a steel tube of 30mm internal diameter and 40mm external diameter. The ends are rigidly attached and it is subjected to an axial pull of 30kN. Find the stress induced in the rod and tube and elongation of composite section in a length of 1m. Take E, = 2 x 10 N/mm and E, = 1 x 10 N/mm​

Answer 1

Answer:

${8}^{9} \times {4}^{4}$

Explanation:

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