Questions
Two rods of different materials having coefficients of thermal expansion and Young’s modulli respectively are fixed between two rigid massive walls. The rods are heated such that they undergo the same increase in temperature. There is no bending of the rods. If = 2 : 3, the thermal stresses developed in the two rods are equal provided is equal to :
detailed solution
Correct option is C
Thermal stress Y1α1Δt=Y2α2ΔtY1Y2=α2α1=32Talk to our academic expert!
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