Show that the coefficient of linear expansion

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A composite bar oflength L = L1 + L2 is made from a bar of material 1 and length L1 attached to a bar of material 2 and length L2, as shown in the figure. Show that the coefficient of linear expansion ? for this composite bar is given by ? = (?1L1 + ?2L2)/L

Reference no: EM13286129

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