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Abstract The structural design problem is acknowledge to be commonly multi‐criteria in nature. The various bases for multi‐criteria optimization methodologies are outlined and a computationally viable method for generating Pareto optimal solutions is adopted for the structural design problem where the criteria may be non‐commensurable. A numerical example on optimal truss design illustrating non‐commensurable criteria is given.
David G. Carmichael (1980) studied this question.