When the temperature is raised from 150C to 3150C, the composite bar shown in fig is extended by 0.15cm. Determine the initial length(L) and stresses developed in each material, If Es=210GPa, αs=12x10-6/0C and ECu=100GPa, αCu=17.2x10-6/0C. Assume the cross sectional areas are same.
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stresses developed in each material,
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