A rod consisting of two cylindrical portions AB and BC is restrained at both ends. Portion AB is made of steel (Es = 200 GPa and as = 11.7 x 10-6/°C) and portion BC is made of brass (En= 105 GPa and an= 20.9 x 10o-6rC). Knowing that the rod is initially unstressed, determine the compressive force induced in ABC when there is a temperature rise of 50°C. 30-mm diameter 250 mm B 50-mm diameter 300 mm C The compressive force induced in ABC is kN.

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