Two steel rods each of cross sectional area 500mm2, and an aluminium alloy rod, of cross sectional area 600 mm2 are cut to a length of 3m and attached to rigid end plates to form a composite member.
If a tensile force of 100kN is applied to the member and at the same tie the temperature of the system is lowered by 20℃, determine the force developed in each of the rods and the extension of the member.
What further extension of the member will take place if the aluminium alloy is cut?
N/mm2
N/mm2
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